US20140014302A1 - Heat energy system for heating or maintaining thermal balance in the interiors of buildings or building parts - Google Patents
Heat energy system for heating or maintaining thermal balance in the interiors of buildings or building parts Download PDFInfo
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- US20140014302A1 US20140014302A1 US14/006,769 US201214006769A US2014014302A1 US 20140014302 A1 US20140014302 A1 US 20140014302A1 US 201214006769 A US201214006769 A US 201214006769A US 2014014302 A1 US2014014302 A1 US 2014014302A1
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- heat
- container
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- energy system
- fluid
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Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S20/00—Solar heat collectors specially adapted for particular uses or environments
- F24S20/60—Solar heat collectors integrated in fixed constructions, e.g. in buildings
- F24S20/66—Solar heat collectors integrated in fixed constructions, e.g. in buildings in the form of facade constructions, e.g. wall constructions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C1/00—Building elements of block or other shape for the construction of parts of buildings
- E04C1/39—Building elements of block or other shape for the construction of parts of buildings characterised by special adaptations, e.g. serving for locating conduits, for forming soffits, cornices, or shelves, for fixing wall-plates or door-frames, for claustra
- E04C1/392—Building elements of block or other shape for the construction of parts of buildings characterised by special adaptations, e.g. serving for locating conduits, for forming soffits, cornices, or shelves, for fixing wall-plates or door-frames, for claustra for ventilating, heating or cooling
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C2/00—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels
- E04C2/44—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose
- E04C2/52—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose with special adaptations for auxiliary purposes, e.g. serving for locating conduits
- E04C2/521—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose with special adaptations for auxiliary purposes, e.g. serving for locating conduits serving for locating conduits; for ventilating, heating or cooling
- E04C2/525—Building elements of relatively thin form for the construction of parts of buildings, e.g. sheet materials, slabs, or panels characterised by the purpose with special adaptations for auxiliary purposes, e.g. serving for locating conduits serving for locating conduits; for ventilating, heating or cooling for heating or cooling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D3/00—Hot-water central heating systems
- F24D3/12—Tube and panel arrangements for ceiling, wall, or underfloor heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D20/0034—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using liquid heat storage material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
- F28D2020/0065—Details, e.g. particular heat storage tanks, auxiliary members within tanks
- F28D2020/0078—Heat exchanger arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0035—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for domestic or space heating, e.g. heating radiators
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/20—Solar thermal
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
- Y02E10/44—Heat exchange systems
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
Definitions
- the invention relates to a heat energy system which can be used to heat or maintain thermal balance in the interiors of buildings or buildings parts.
- the heat-exchange pipeline is made of concrete panels, which can be used as a roof, a wall, a fence or even as a road pavement. Neighboring panels are connected with each other and with the complete energy system, which runs a fluid in the panels.
- US 2009/0044465 introduces a panel technology which can be used also as a wall or a roof.
- the panel has a “heat-breaking” layer with heat-exchange pipes and an in-sulation layer on both sides.
- An antifreeze fluid runs in the pipes, which can be joined from one panel to the other to make a complete system in the whole building.
- DE 44 23 137 can be used for any scale of buildings, in which case there are pipes in the perimeter walls placed outside in the insulation layer.
- the pipes are connected to distribution pipes in the wall, which join the heating system.
- This technology can be used to heat slabs and floors.
- the aim of the invention is to create an energy system which on the one hand is able to utilize all heat energy which appears in the building, and also can balance the undesired heat differences indoors.
- heat gaining and “heat losing” surfaces in any building there are “heat gaining” and “heat losing” surfaces in any building.
- the first ones are usually perimeter structures (wall, roof), occasionally surfaces surrounding internal heat sources. These areas take the local heat gains. Heat losing surfaces are the ones which have no actual heat gain, therefore they are colder. This can be a ceiling, an internal wall or a floor, or even a perimeter wall, if it is currently not directly exposed to sunlight for instance (like a cold wall looking north).
- the ratio between heat gaining and losing surfaces always depends on the actual heat gain and the geometry of the building. In case of known examples, thermally speaking there is no direct connection between these two kinds of surfaces. Balance however is easier maintained if we create a direct connection between them, which can transfer considerable amount of heat energy rapidly.
- the collected heat however can be also more, then it is necessary to maintain ideal temperature.
- the part of heat energy, which cannot be used right away, namely the heat surplus can be stored in various ways.
- thermal storage In the simplest case the heat itself is stored in the thermal mass of the closed circuits fluid volume. Because floors and also ceilings are connected to the walls, a large water volume takes part in the heat storage. The capacity of thermal storage is still limited of course, but it is still considerably higher, then in case of conventional structures.
- the invention is ideally realized when the closed flow fluid volume defined by the containers is connected to the conventional energy system of the building via a heat-exchange unit, and/or to an additional container defined closed flow circle and/or to a heat storage system.
- Another ideal form to realize the heat energy system according to the invention is, when a series-loop piping is attached to the side of the container and is used as a heat exchange unit.
- the fourth ideal way to realize the heat energy system according to the invention is, when the heat exchange series loop piping is built in the container itself.
- the sixth ideal way to realize the heat energy system according to the invention is, when the container is divided into two parts by a plate parallel to its the sides, and one half of it is connected to the closed circuit of the containers, while the other is the volume for the heat exchanger.
- the eighth ideal way to realize the heat energy system according to the invention is, when these air pipes are united with an air flow producer device, like a ventilator or fan.
- the tenth ideal way to realize the heat energy system according to the invention is, when the vertical air pipes in the container are united with an air flow producer device, like a ventilator or fan.
- the twelfth ideal way to realize the heat energy system according to the invention is, when the heat exchangers—which allow heat transfer between two closed fluid circuits made by connected neighboring panels—are built at the vertical containers of the closed circuits next to the sides of the separating wall between the interconnected closed fluid circuits, and the heat exchangers at both side of the separating wall are connected by pipes penetrating the wall.
- FIG. 1 shows a building with a simple version of the heat energy system according to the invention on a schematic vertical section;
- FIG. 2 shows the horizontal section I-I of the building as shown in FIG. 1 ;
- FIG. 3 shows enlarged the part of FIG. 1 which is affected by the invention
- FIG. 5 shows the detailed section III-III of the building according to FIG. 3 ;
- FIGS. 6 a - 6 b show special version for the joint elbow elements on a perspective drawing
- FIGS. 7 a - 7 b show one container applicable for the system according to the invention on a perspective drawing and on cross section IV-IV according to FIG. 7 a;
- FIGS. 8 a - 8 c show another container applicable for the system according to the invention on a perspective drawing and also on cross section V-V and longitudinal section VI-VI according to FIG. 8 a;
- FIGS. 9 a - 9 b show a third container applicable for the system according to the invention on a perspective drawing and on cross section VII-VII according to FIG. 9 a;
- FIGS. 10 a - 10 e show some buildings with different versions of the heat energy system according to the invention on one schematic vertical section for each;
- FIGS. 11 a - 11 c show different solutions for the problem of openings
- FIGS. 12 a - 12 b show a special version for façade to realize the system according to the invention on vertical section and on horizontal section VIII-VIII according to FIG. 12 a;
- FIGS. 13 a - 13 d show another special version for façade on a vertical section and on horizontal section IX-IX according to FIG. 13 a with a sketch of the operation;
- FIG. 14 shows the way to realize the system according to the invention replacing the building frame on a schematic perspective drawing
- FIG. 15 shows the installation of the system which aids radiant cooling on a vertical section of the building
- FIG. 16 shows schematic wiring diagram for the heat storage version of the system according to the invention.
- FIG. 17 shows the connection between the conventional heat energy system of the building and system according to the invention on a schematic drawing
- FIGS. 18 a - 18 d show variations for heat exchangers for the system on perspective drawings and the sections X-X, XI-XI and XII-XII according to FIG. 18 a;
- FIG. 19 shows additional versions for heat exchangers for the system on perspective drawing
- FIG. 20 shows a version for heat exchanger for the system on vertical longitudinal section
- FIG. 21 shows arrangement to assure heat transfer connection between rooms equipped with the system according to the invention on a vertical section
- FIG. 22 shows connection between the system according to the invention and known energy systems of a building.
- the surrounding surfaces 9 - 14 of the room 2 are given from one side by the perimeter wall 3 of the building 1 , from the other sides by additional interior walls 4 - 6 ), also by the floor 7 from the bottom and by the slab 8 from the top.
- Each of them is made of conventional materials of building practice (to understand the invention, the structure of the building, the different structural elements and openings such as windows and doors, appliances or the utilized materials have no importance, they are not indicated on the Diagrams either, and their detailed introduction is not necessary, either).
- the containers 15 are made of plastic, but steel, aluminum or other materials can also be used.
- Diagrams 3 - 5 show a simple realization case, when containers are made of plastic plates 16 parallel to 9 , 10 , 13 , 14 surfaces and side plates 20 welded together.
- the containers 15 at vertical surrounding surfaces 9 and 10 , and the bottom surface 16 of the upper container 15 below the surrounding surface 14 can have an additional layer for finish 18 .
- This can be wallpaper or any other suitable material, ideally heat conducting.
- joint elements 20 along the whole side 17 where neighboring panels 15 meet each other.
- these elements are plastic tubes melded in the side 17 of the panels.
- the neighboring panels 15 joining elements 20 are at the same location for each panel, and they are connected by tube connecting elbow fitting 21 but they could be connected by any other technology (like welding, gluing, by heat expanding elements, etc.).
- the diameter of the joining elements 20 and elbow fitting 21 are as large as possible to assure an effective flow.
- the containers 15 are prefabricated and made together with the joint elements 20 in a factory. After they are put to their places in the room 2 of the building 1 , the joint elements 20 placed in pairs for neighboring containers 15 can be connected. With this a system is made, in which the containers 15 create a closed circle and an interconnected volume, in which the fluid medium can flow freely.
- the containers' internal volume can be filled with fluid.
- the heat transfer medium is normally water
- the fluid infill of the containers 15 is water also, and in later introduction the fluid in general may be referred as water, with the amendment, that it could be naturally other fluid applicable for this purpose.
- the same fluid medium in the containers absorbs and stores the heat, also working as a heater/cooler unit (one part of the fluid surface may be small but joined with the rest, it can provide a significant heat storage capacity).
- the heat gain of the surrounding surfaces 9 - 14 in the room 2 can be different because of their location, which causes temperature differences in the building 1 .
- the flow of the fluid medium in the containers 15 is generated by the temperature differences between heat gaining and losing surfaces. Thermal balance is assured only by the fluid itself, which flows from heat gaining surfaces to the colder heat losing ones.
- the building's 1 perimeter façade is the heat gaining surface in the room 2 and heat loser is any surface 10 - 14 which is connected to the heat gainer one, but it is colder because of lack of actual heat gain.
- Solar heat gain warms the fluid in the container 15 reaching it through the wall structure 3 .
- the temperature balance between heat gaining and losing surfaces causes the warmed-up fluid to flow from the container next to the perimeter wall 15 to the other containers 18 , 16 and finally 17 where it can pass the heat surplus to colder areas reaching thermal balance.
- the system works during nighttime in the opposite way.
- the thermal mass of the fluid utilizes the solar gain to protect the interior against cooling. This is similar to the effect of the thermal mass in conventional buildings, but in this case the actual gain is spread in the whole system, so the amount of utilized heat energy increases significantly. This is practical not only in winter but also during summer, because this way the heating up of the interior can be avoided.
- the containers 15 are attached to the perimeter 3 and also interior wall 4 and to the slab 8 by railings and bolts. This can ideally be made by screw joints with holes prepared on the side 17 or simply through sheaths, which allow the screws to reach the wall directly through the container.
- Figures show no insulation between the surrounding surfaces 9 , 10 , 13 , 14 and the containers 15 .
- the need for insulation always depends on the current conditions. Generally some insulation may be necessary if the goal is to keep all heat gains in the room 2 and heat should not be passed beyond the containers 15 to the other parts of the house. This can be especially practical when other building parts are allowed to be colder for any reason. Yet there are some cases, when lack of insulation is ideal, for example in case of the perimeter wall 3 when the goal is to allow solar gain to reach the fluid volume.
- check valve 23 on both sides of the joint elbow fitting 21 A, perpendicular to the plane defined by joint elements 20 and joint valves 22 there is one check valve 23 for each side.
- the principle of the check valve 23 is similar to the automatic self-closing valves used for hose joints, namely the check valves in the joint fittings open automatically when the joined elements—like a hose used for fluid infillare put in.
- the upper joint fitting 21 F is generally made the same way, but opposite to one joint valve 22 its volume is increased and on both side of the resulted air lock 24 are the check valves 23 placed.
- Fluid filling occurs through one of the check valves 23 of joint elbow fitting 21 A and when the containers 15 are filled up completely the rest of the unnecessary water leaves through the check valve 23 of the upper joint elbow 21 F. Then the check valves 23 can be closed—by removing the hoses—, so the air presence in the system is minimal.
- the air lock 24 leaves space for expansion of the water in case of warming up.
- the side 16 of the upper container 15 can also be made to aid the flow of leaving air. In the whole closed water circuit the highest point is the air lock and the upper side 16 of this container 15 can be tilted slightly to this direction—namely the two sides 16 of the container 15 are not parallel this case—.
- the simplest containers 15 consist of sides 16 and edges 17 made by sheets only.
- the containers 15 are welded (in case of plastic or steel) or assembled by gluing with a frame (in case of glass). These can be used if there is a supporting surface next to them, to which they can be attached to.
- containers 15 with larger surface spacers 26 can be placed between the sides 16 inside the container 15 in a way that they do not disturb the flow of water—practically placed parallel to the flows current with perforations 27 .
- These containers 15 can be used as independent wall elements (panels).
- the containers 15 are normally made by steel-wood or plastic sheets, i.e. they are opaque. In addition to that the containers 15 can also be made in a way that at least one of its sides is made by transparent or translucent material.
- the transparent or translucent material is generally plastic but also glass can be used. The latter is primarily applicable for containers 15 used for roofs.
- one container 15 is laid on the floor 7 . This one has to have load-bearing capacity. Because of different reasons, the container 15 may have to have structural strength in other cases as well. Basically there are two options to make a load-bearing container.
- FIGS. 8 a - 8 c Another option is if the container 15 is surrounded by load-bearing frame 28 (as shown in FIGS. 8 a - 8 c ) and between the sides 16 a there is a bracing 29 inbuilt (similar to the version mentioned earlier, like a frame of longitudinal 30 and cross 31 spacers made by steel).
- Both load-bearing frame 28 and bracing frame 29 are made similar to the self-supporting version introduced above, but they are made by stronger materials or design. So the load-bearing frame 28 can also be made by U beams, these can also give the edges 17 of the container 15 .
- the spacers 30 and 31 are placed in a way so they do not disturb the water flow—like made with perforations 27 for example—. This solution results less material use and structural weight but its disadvantage is that the flow can be influenced by the spacers 30 and 31 .
- load-bearing containers 15 for floors is very similar to the general load-bearing containers 15 and its materials are generally opaque. Because the nature of structural load is obviously different for this case, and because the support has to be done for the whole surface this one can only be done by frame of inner spacers 30 and 31 ), with a freely chosen overlay 19 which consist of a load-bearing layer and a walkable finish. The spacers 30 and 31 transmit the structural load from the overlay 19 to the slab below the container 15 . This case a load-bearing layer has to be made below the container 15 as an additional structural layer.
- the load-bearing containers 15 used as floor can also be made with increased structural capacity, so theoretically it can also replace slabs, if it fulfills the structural demands.
- the load-bearing containers' 15 material is generally steel sheets, but also transparent/translucent design is possible, which normally can be made by glass. Containers used for floors and ceilings are exception, which generally made opaque. The design depends on the architectural concept in the end.
- the containers 15 can be used in different ways depending on their design.
- the simplest way is the method introduced earlier, when the simple containers 15 are built to the walls of the room from inside.
- the water circuit becomes an inner core and each side of it is an interior structure. This case the water circuits function is only cooling/heating and energy distribution. Because it has a large active surface, it can already drop the necessary energy consumption already in this case.
- FIGS. 10 a - 10 e some schematic versions for container arrangement can be seen, which can be made by using the containers introduced earlier, with some special solutions for each respectively (to show the differences more clearly for the most of these Figures the same building is shown as in the first example).
- the system according to the invention is made on both floors and also in the roof.
- the containers 15 are internal and placed everywhere along the planes of façade walls 3 and the roof 33 .
- the containers 15 make one independent fluid circuit on both sides of the separating wall 34 .
- On the second level there are three spaces included in one water circuit in a way that—looking parallel to the main axis of the horizontal containers 15 —two vertical containers are placed next to the most external walls of these rooms, this case the two facing perimeter walls 3 and the lower and upper horizontal containers 15 run through all rooms included in the system and the separating walls 34 between the spaces are between the horizontal containers 15 .
- the container 15 can be built instead of a conventional façade wall 3 or roof 33 as it can be seen in FIG. 10 c.
- the joint elements 20 of the containers 15 to be connected have a joint elbow fitting 21 A or 21 F, which has check valves 23 on both sides. Through these using a short pipe the two neighboring check valves 21 A or 21 F and by that the two water circuits can be connected.
- Another possibility is when the neighboring edges 17 of the containers have themselves joint check valves inbuilt which also can be joined by a hose.
- the opening 37 is not as high as the ceiling height (like parapet wall and window for example) then below or above the openings 37 containers 15 with reasonable size can be built and in the zone of the opening the water circuit can be made along the sides of the opening the same way like in the earlier cases, but as an extreme solution the water circuit can also let in the neighboring circuit also.
- FIG. 10 b shows and also can be seen in FIGS. 12 a - 12 b the containers 15 can also be placed as a front wall to profit from solar energy.
- This joint method of course can be used everywhere when vertical and horizontal containers 15 placed on two sides of a wall have to be connected.
- the containers 15 can also be placed outside the roof 33 when also the method mentioned above is applicable.
- the container 15 increases thermal insulation and lowers the heat load (the front wall practically acts as a solar panel).
- the container 15 can be built instead of a conventional wall as a perimeter self-supporting structure. This can be seen in FIG. 10 c and more detailed in FIGS. 13 a - 13 b.
- This case the load-bearing structure is a column grid 45 inside and/or along the perimeter of the building.
- the container 15 is built in the conventional load-bearing structure 45 as a structural infill or as a curtain wall on the façade.
- the self-supporting containers 15 serve this purpose.
- the container 15 can be transparent (glass or plastic) or opaque (typically plastic or steel but it can be made by other materials also). Depending on the architectural concept internal side of the container 15 has a transparent or translucent protecting finish 18 but also other materials can be used.
- Load-bearing containers 15 as shown in FIGS. 9 a and 9 b can give the structure of the building also. This case the façade wall 3 and the container 15 are built as one structure. This is also possible in case of an internal separating wall and the container 15 next to it.
- the geometry of the containers 15 load-bearing frame 32 results vertical columns 50 and beams 51 between the containers 15 as shown in FIG. 14 .
- the structural load is taken by the columns 50 and beams 51 between the containers 15 which are connected to make a water circuit as structural infill elements between the columns 50 and beams 51 ).
- the materials used for container 15 can be transparent/translucent (glass or plastic) or opaque (typically plastic, steel or other material). For the containers design it is important, that external heat gain should be able to reach the water volume. Because of that the external side of the container 15 is typically made by a heat and light conducting material. If that is not possible because of any reason, the container 15 can also be made by opaque material. This case the container 15 is made with an absorber surface finish similarly to solar panels.
- thermal insulation is normally not required unless a special task or demand does not make it reasonable to use. Because the load-bearing containers 15 used for floor 7 is laid on the slab as an interior structure thermal insulation is also not made this case.
- the container is built as a perimeter wall then depending on outside temperature conditions thermal insulation of the container 15 might be necessary which is placed on the external side.
- the containers 15 operation is ideal if the heating effect of solar gain reaches the containers 15 . Therefore if thermal insulation is used then ideally it is made as transparent/translucent so sunlight can get to the water. If the container 15 is made by opaque materials the thermal insulation ideally is still a transparent system.
- Thermal insulation can be typically two- or more glass or plastic sheets with voids in between. This can be done by prefabricated closed gas cells for example like thermal insulation 41 in FIGS. 12 a and 12 b , or it can be made by layers of glass or plastic insulation sheets 48 with air cavities 49 between them and air-tight proof sealing along their perimeter as it can be seen in FIGS. 13 a and 13 b.
- the thermal insulation can also be placed during construction when the containers 15 are positioned, but the container 15 generally is applicable for panel building technology, therefore the thermal insulation 41 can be placed on the container 15 already during fabrication. Similarly to the thermal insulation 41 other layers can be placed on the container 15 like the walkable finish 19 on load-bearing containers 15 used for floors. On the internal surface of the container a light-transmitting transparent/translucent plastic finish 18 can be made or also another material can be used depending on the architectural concept.
- thermal insulation on containers 15 for the roof 33 this can be made similarly to the containers 15 built as a wall typically with transparent design.
- the water circuit can utilize also the solar heat gain in case the containers 15 were built outside or instead the perimeter wall 3 .
- the efficiency of the system compared to conventional solar panels is lower because some part of the solar energy is absorbed by the insulation 41 but the heat loss also decreases and the utilized surface area is larger considerably.
- the building example introduced earlier shows the simplest case, when the containers 15 are transparent and are fixed to opaque structures. Another case when the containers 15 are on the external side of the perimeter wall 3 therefore the system has external effects: it heats up because solar gain or cools down during the night.
- This case the systems design is identical to the earlier example, the difference is how it works: during daytime at the perimeter wall 3 the floor 7 and partially the walls 5 and 6 warms up and the heat is transmitted by the water to the colder areas. In the night when outside temperature is lower the direction of heat flow turns to opposite. The temperature of the external container's 15 surface drops and the stored heat from daytime flows here. The external container's 15 surface radiates the stored heat back to the environment.
- FIGS. 12 a and 12 b the container 15 placed before perimeter wall 3 has thermal insulation 41 . Between the container's 15 side 16 and thermal insulation 41 there is air cavity 44 . In the thermal insulation 41 there are rows of ventilation holes 42 near to the container's 15 top and bottom. When outside air cools down, it flows from the lower ventilation holes 42 through the air cavity 44 and leaves through the upper ventilation holes 42 ). During the flow the air warms up and the water in the container 15 cools down. The process can be intensified by increasing the speed of flowing air in the cavity 44 by an airflow producing appliance 43 (like a ventilator) shown on the Figure schematically.
- an airflow producing appliance 43 like a ventilator
- the container 15 has ventilation pipes 46 inbuilt, in the middle of the container 15 and next to each other.
- the ventilation pipes 46 are made in pairs and in a way that they are in direct contact with each other on the largest surface area possible.
- the ventilation pipes 46 are connected to the outside and to the interior by a conduct 47 on each side at the top and at the bottom. At the external side the conduct 47 also penetrates the thermal insulation 41 naturally.
- each conduct 47 is connected to an airflow producing appliance 43 in a way that in case of both lower and upper conducts 47 the airflow producing applications are placed in pairs and work in the opposite direction.
- Ventilation takes place as following.
- the airflow producing appliance 47 takes fresh air in from outdoors through the lower conducts 47 which enters the interiors through the upper conducts 47 , meanwhile the other airflow producing appliance 43 removes used air through the upper conducts 47 which leaves to outside through the lower conducts 47 .
- the air ventilation pipes 46 placed in pairs heat exchange takes place between the fresh and used air with oppositional air flow—through the shared surface of ventilation pipes 46 in contact—and also between the fresh air and the water in the container 15 , so the fresh air intake warms up before it reaches the interior.
- the radiant night cooling of the system can also be intensified to a lesser extent by a simpler solution also.
- a building 52 can be seen with flat roof and with containers 15 inbuilt.
- the other option is when the heat surplus of the system is stored by another appliance.
- This can be done the easiest way if a heat exchange unit 55 is connected to the water circuit of the containers 15 —as it can be seen in FIG. 16 .
- the other circuit of heat exchanger 55 has a heat storage appliance 56 . Thereby the water circuit of the containers 15 can remain independent because between the two circuits there is only heat transfer and no fluid exchange.
- the heat exchanger 55 collects warm water from the upper area of the containers' 15 placed next to the walls and warm water is replaced with cold one. Thereby not only one but two water circuits appear in the system: one vertical which makes water flow from container 15 at the floor 7 to container 15 at the wall 4 and slab 8 and a horizontal which flows warm water from the connected water circuits to the heat exchanger 55 from which the returned cold water cools the upper side of the containers 15 at the slab 8 . Both circuits are closed so continuously the same water runs in the circuits.
- the solution of the invention cannot meet all the energy demand of the building in itself so the conventional energy system of the building is also necessary.
- This conventional energy system can consist of any conventional appliances.
- the conventional energy system shown in FIG. 17 has for example a furnace 59 a solar panel 60 a heat storage appliance 61 a geothermal heat pump 61 a cooling appliance 63 and heaters 64 or floor heating, and hot water supply unit 65 .
- the conventional system and fluid circuits of containers have to be harmonized for ideal operation and control.
- the conventional energy system 58 and the water circuit of containers 15 cannot be connected directly because—as it was mentioned before—it is essential to keep the water always in closed circuit so only heat will be transferred from one circuit to the other.
- the conventional system always consists of an energy source and an active surface (heat transmitter) like a radiator.
- the active surface compared to the room is relatively small. Because of that the heater has to have higher temperature then the desired temperature of the room, like for example a typical radiator operates with 60-90 degrees Celsius hot water. In case of the containers 15 this surface is significantly higher since all container surfaces are also cooler/heater surfaces. Because of that water with much lower temperature is sufficient for heating. This results significant energy savings and also allows that geothermal energy itself to be enough without uniting it with gas heating.
- the water circuit of the containers 15 and the conventional energy system defines independent circuits and the connection between them is made by the heat exchanger 55 .
- the efficiency of the heat exchanger 55 can be increased further by the solution shown in FIG. 18 c .
- One side 16 of the container 15 is made with channels 67 in which the counter flow serpentine piping 66 can be placed. This maximizes the contact surface area between serpentine piping 66 and the side 16 .
- the second container's 68 design is similar to the simplest version of the containers for water circuit 15 but naturally is made with two joint elements 20 only. Through these the container 68 can be connected to the conventional energy system 58 .
- the joint elements 20 can be built in a conventional way according the actual demands.
- the second container 68 can also be made inside of the first container 15 itself in a way that it is divided by an internal dividing plate 59 which is parallel to the sides 16 and one part gives the water circuit of the containers 15 and the other the heat exchangers 55 .
- the plate 59 built between containers 15 and 68 is only one sheet and ideally is made by heat conducting material so the heat transfer can take place rapidly.
- the joint elements 20 are made as introduced earlier, but also this case for the container 68 there are only two joint elements 20 positioned to connect to the conventional energy system 58 .
- the double container 15 / 68 can also be made as self-supporting or load-bearing this depends on naturally where it will be placed.
- FIGS. 10 a - 10 c if there are many rooms in the building their relation to each other and to the buildings perimeter can be different in many ways. If they are equipped with independent water circuit, then it can happen that connecting these different water circuits becomes reasonable, so the heat gains of the rooms can be balanced between each other.
- the process can also work for water circuits above each other, like when the heat surplus of south facing water circuits' above each other is transmitted upwards where on higher floor in a machinery area a heat exchanger can take it. This way there is no need for heat exchanger on every floor.
- the heat exchanging connection between neighboring rooms can be made with second containers as introduced earlier.
- FIG. 41 A practical solution for this can be seen in FIG. 41 .
- the second containers 68 placed between the containers 15 and the wall 34 .
- the second containers On both side of the separating wall 34 the second containers have joint elbow fittings 21 placed in joint elements 20 and these are connected to each other by tubes 70 which penetrate the wall 34 through holes. Because this case the second containers 68 are connected to each other, they have to be made with more joint elements 20 just like in case of the containers 15 .
- the two containers 68 and the connecting tubes 70 make a water circuit just like the containers 15 .
- Heat surplus in one room is transmitted from container 15 placed at the separating wall 34 to the secondary container 68 next to it.
- the warmed up water runs through the tubes 70 in the wall 34 to the other container 68 which also transmits the heat to the container 15 next to it.
- the water circuit made by containers 68 carries the heat surplus to the room with heat demand.
- the separating walls 34 are only made by panels and there is need for heat exchange between two rooms, then it is practical to use the container 15 divided into two parts as shown in FIG. 20 . This case the heat exchange connection can be made without a heat exchanger in one simple element.
- the complete energy system consists of several types of elements: for one part the containers' water circuits are built 101 which work as a heat gaining and also heat losing (radiating) surfaces and also as heat balancing units.
- the water circuits radiate heat surplus directly back to environment (like with night flush cooling for example) or forward it to the heat exchanger 102 units which takes it with another water circuit.
- the heat exchanger let this energy to be stored in a way, like by a heat storage unit or underground container 103 .
- the system can store as much heat during the year then necessary for heating period. In case when this is not possible, then some other heat source is also required: ideally geothermal or CHP (Combined Heat and Power) is used 104 which can provide heating water with lower temperature effectively, but also it can be gas or electric technology 105 .
- CHP Combined Heat and Power
- the stored or produced heat energy warms the containers' water circled through the heat exchanger.
- radiator or underfloor heating 107 is also needed.
- Photovoltaic panels or wind turbines and naturally any other technology can be used to cover the energy demand, but also the energy produced by CHP 109 can be utilized.
- the system is operated by a central control unit 110 , which monitors the temperature of air and surfaces and controls the system accordingly.
- This central control unit is not part of the invention and it is well known by professionals, therefore is not necessary to introduce it here in detail.
- the combined systems control works in the following way.
- the control unit of the circulation network is a thermostat which works the same way as control units utilized for floor heating or hot water supply technology.
- the thermostat monitors the temperature of the containers, and when the actual value is out of the predefined margin (generally set by the user), the heating/cooling system turns on.
- the control is primarily based on temperature, the heat relations of fluid volume is assured by the heat balance property of the fluid itself.
- the system has 0+3 performance levels.
- phase 0 the heating/cooling is not in operation, solar and other heat gains can balance the losses. This state is much longer compared to conventional buildings, because heat gains do not appear locally (in conventional buildings the north side is always cold for instance).
- phase 3 besides the floor and the perimeter wall, the interior walls also join in the heating process. This is rarely necessary, though, only in case of peak demands.
- phase 0 In case of cooling, phase 0 relies on the whole thermal mass of the fluid circuit (obviously it works the opposite way, heat is taken by the cooler areas of the fluid volume).
- phase 1 the perimeter wall is turned on.
- the cooling takes place by the heat exchange unit, which takes heat from the structure along the upper line of the wall and from the ceiling in the same area.
- This hot water is placed in a heat storage unit, which can be hot water supplies (like baths/showers) or other heat storage applications (like underground heat storage).
- the heat exchange units connect two circuits: one is the fluid circuit of containers, the other is between the heat storage and the heat exchange unit.
- phase 2 the ceiling works together with the perimeter wall.
- phase 3 in addition to the ceiling and the perimeter wall, the interior wall joins the cooling process.
- Phase 3 is only needed in case of peak loads, when climatic conditions or function requires it. In Hungary for example, generally phases 0+1+2 for heating and phase 0+1 for cooling are sufficient, but naturally the system is applicable for other climates also.
- the system allows the heating and cooling of the rooftop as well, similar to the other spaces introduced above.
- the difference is that “night flush cooling” or radiant cooling (when stored heat is radiated back to the environment during the night) can have more importance.
- the structure only stores the heat until the night, in this case the amount of fluid inbuilt is sufficient to store the heat gain of one day, which is given/ventilated/radiated back to the environment during the night.
- the heat is utilized in any way (like for hot water supply or stored for later use for heating).
- the limit can be the weight of the fluid and its hydrostatic pressure. Above 3-4 m considerable weight can appear, which can naturally be solved but is unlikely to be economic.
- the main essence of the invention is that wall elements (panels) can be made where—unlike in case of conventional and known panel systems—the main weight of the structure is given by some kind of fluid, while the solid constituents in conventional terms play the role of a container only, and mainly any other task (insulation, heat storage, noise resistance, etc.) is given by union of fluid and air/gas.
- the system according to the invention consists of many elements, among them there is a container for perimeter and internal use, also others applicable for the ceiling, and the roof or the floor, therefore in ideal case using the system a complete building can be constructed.
- the system can be used for various scales of construction from a detached house or secondary buildings to apartment housings, from high-rise buildings and industrial buildings to halls. Naturally the system can be combined, so it can be united with other technologies when only a part of the building is built by the system, therefore it is applicable for building renovation as well.
- the system can be created in solid and also in transparent/translucent versions, therefore it shows similarity with known glass curtain wall and panel technology at the same time:
- the material use is also crucial, the main weight, heating/cooling and also air-conditioning can be given by the fluid, which is also mainly responsible for the heat resistance capacity.
- This is not conventional for the known systems today, because the solid materials have importance even if heating appears in the panels, because solid materials refer for acoustics, thermal insulation or fire protection demands.
- Containers can be made in different size, the sizes depend on the actual architectural plan as well, but if possible, ideally it is necessary to design in module sizes, otherwise fabrication with special sizes will be required.
- Containers for the perimeter wall and the roof can be attached with insulation already in the factory, parallel sheets with closed air layers between (they can be air layers or vacuum cells, or occasionally gas cells, separated with transparent/translucent plastic or glass sheets to allow solar gain to reach the fluid volume), and with an external finish (ideally made of a glass or plastic layer).
- the containers can also be made with final interior finish (ideally not a heat insulating material like wallpaper, ceramic or stone tiles).
- final interior finish ideally not a heat insulating material like wallpaper, ceramic or stone tiles.
- the smaller elements have a role in heating and cooling while the bigger ones take part in conditioning due to their heat storing capacity.
- the interior containers have this thermal volume only.
- Containers belonging to the floor have to be made with an inbuilt structural support and a final floor finish.
- the invention is applicable for building glass curtain walls, in this case even its appearance is a novelty. Its advantages in energetics and fire resistance can be important.
- the system can also appear as a transparent and solid wall, it can be independent or an attached layer joined to the existing structure. In both cases it can greatly improve the thermal insulation of the building and can decrease the energy consumption.
- the waste production of the system is minimal, because both fluid and solid constituents are re-useable, therefore it is ideal for temporary buildings or pavilions.
- the system needs a lower temperature for heating/cooling unlike in case of conventional systems, so combined with renewable energy sources (like geothermal or solar heat) considerable energy savings can be achieved, even compared to current systems.
- renewable energy sources like geothermal or solar heat
- the insulation ideally made of air/gas cells results in an economic transparent structure, which together with the fluid volume increases fire-resistance capacity compared to conventional glass structures.
- the material use of the system is cost-effective, and in case the solid panels are also made from re-usable/recyclable materials (like plastic/aluminum/glass/copper for shell), the system becomes completely re-usable/recyclable. This causes energy savings, because the air layers and the fluid volume gives the main weight, which can be recycled/reused with a modest energy investment.
- the system according to the invention has a special application possibility: it can work as a fire-boarder structure as well.
- the separation between spaces made by the container is an internal wall structure built with double fluid circuits.
- the material of the container is not necessarily fire resistant, but with fluid infill its fire resistance increases significantly.
- the fire resistance can be helped with the fluid flow: the heat load caused by the fire starts the flow, which transports the heat to the colder areas, while the warmed up fluid will be replaced by a colder one. This way the fluid flow increases fire resistance. This increase can only be assured together with the fluid circuit, that is why the system is built ideally with two circuits (one fluid circuit for each side), this way the fire load can reach the structure from any side, it can flow to the other one.
- the heat energy system according to claim 1 characterized in that the closed fluid circuit made by containers ( 15 ) is connected by heat exchangers ( 55 ) to conventional energy system ( 58 ) of a building and/or additional closed circuit fluid volume made by containers ( 15 ) and/or with a heat storage unit ( 56 ).
- thermoelectric system characterized in that the heat exchanger ( 55 ) is made by a second container ( 68 ) built next to the container ( 15 ) and parallel to its side ( 16 ).
- the heat energy system according to claim 1 or 2 characterized in that the container ( 15 ) is divided into two parts by a separating plate ( 69 ) which is parallel to the side ( 16 ) of the container ( 15 ) and one part is connected to the fluid circuit and other is the space for the heat exchanger ( 55 )
- the separating wall between two neighboring closed fluid circuits made by containers ( 15 ) is a heat exchanger ( 55 ) which makes heat transfer connection between the two circuits as a container ( 15 ) which has another container ( 68 ) next to it and parallel to its sides ( 16 ) or it is divided into two by a separating plate ( 69 ) which is parallel to the side ( 16 ) and one container ( 15 ) is connected to the other containers ( 15 ) of the closed circuit, the other container ( 68 ) or other part of container is connected to the other closed circuit containers ( 15 ).
Abstract
A heat energy system which can be used to heat or maintain thermal balance in the interiors of buildings or buildings parts. According the invention there are containers built near and/or instead of surrounding surfaces of a room: of upper and lower surrounding surfaces to at least certain extent, and at least two parts of opposite side surrounding surfaces; and the neighboring containers are connected, and all containers define one closed fluid volume which is filled with heat transporting fluid. The typical layout of the invention is shown in FIG. 3.
Description
- The invention relates to a heat energy system which can be used to heat or maintain thermal balance in the interiors of buildings or buildings parts.
- Since researches turned to renewable energy sources, solar energy has played a more and more important role in the heating of buildings. Several different solutions for this have been introduced, such as photovoltaic panels to provide electric power, or solar panels to cover the heat energy demand of buildings for heating or hot water supply (at least to a certain extent).
- As it is well known, these systems developed to utilize solar heat energy basically consist of three main parts: a device to absorb heat energy, which inhabits a fluid medium and finally a technology to utilize the collected heat. In the beginning this task was usually solved by elements attached to the buildings like solar panels on rooftops or black painted water containers (popular especially in warmer climates). Nowadays however, these technologies intend to utilize the whole perimeter surface of a building. Depending on the building method or the size and the scale of the house, various systems have been developed.
- The description of such a relatively simply system can be read in U.S. Pat. No. 4,285,332. This technology can be used for small buildings and detached houses with a pitched roof. Distribution pipes are made at the ridge and eaves of the roof, between them there are parallel pipelines arranged running along the roof. Thin vertical containers are built in the perimeter walls insulated on both sides and placed directly next to each other at the interior side of the walls. The steel containers are connected to the pipes of eaves at the top and to another pipeline at the bottom which runs through the building and is attached to a pump. This lower pipeline is also connected to the distribution pipe of the ridge. The pump circulates water in the system. The steel containers have inbuilt heat-exchange pipes with air-intake holes at the bottom and air-exhaust holes at the top. In case of a multi-level building, the heat-exchange pipes have an extension conduct, which leads to the next floor.
- It is important to note that the solution above and all following are only described to compare them with the invention introduced in this document. Because of that, the examples are shown only with the necessary elements and properties for comparison, all other information (technical details, insulation solutions, selected materials, etc.) are presented to the necessary extent.
- A relatively similar solution can be read in U.S. Pat. No. 4,164,933 for panel buildings. The heat-exchange pipeline is made of concrete panels, which can be used as a roof, a wall, a fence or even as a road pavement. Neighboring panels are connected with each other and with the complete energy system, which runs a fluid in the panels.
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EP 0 582 730 is also for small buildings like detached houses and workshops. In this case there are large and thin containers built in perimeter walls and the roof of the house with holes for the fluid medium to enter and exit from each container unit. There are three different types of containers for different tasks: a rain storage container, a heat storage container and a heat-balance container. Heat storage containers have inbuilt heat-exchange pipelines, which are connected to the heat energy system of the building and to the floor heating as well. Heat-balance containers are insulated from the outside and corrugated from the inside. An additional sheet can be placed in front of the corrugation and air in the void between the sheet and the container can be moved with a ventilator. The heat-balance container can contain heat-storage materials, and in case it is used on the roof, the outside surface is corrugated with a glass sheet cover on the top. - US 2009/0044465 introduces a panel technology which can be used also as a wall or a roof. The panel has a “heat-breaking” layer with heat-exchange pipes and an in-sulation layer on both sides. An antifreeze fluid runs in the pipes, which can be joined from one panel to the other to make a complete system in the whole building.
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DE 44 23 137 can be used for any scale of buildings, in which case there are pipes in the perimeter walls placed outside in the insulation layer. The pipes are connected to distribution pipes in the wall, which join the heating system. This technology can be used to heat slabs and floors. -
EP 0 455 184 is also applicable for any kind of a building. In a general case there is a perimeter transparent thermal insulation layer which inhabits an air cavity in which heat-transfer and heat storage elements are placed. A fluid runs in both units. Both are connected to the heat energy system of the building, which operates the heating unit inside the wall. The system can be extended with floor heating pipes as well. - DE 31 41 931 is ideal for larger multi-level buildings. A perimeter façade is made by a curtain wall system. The load-bearing element of the wall is an aluminum box which looks towards the exterior with its open end with an insulated layer at the bottom. A flat radiator heater is placed on the insulation, in front of it there are an air-layer, a flat plate with spacers and finally a glass plate. The air layer has inbuilt vertical channels. Water circulates in the flat radiator and air in the vertical channels. Slabs of the building have inbuilt pipes which are connected to the circulation system.
- As it can be seen from the descriptions above, the introduced solutions (and other technologies similar to them) are made to gather solar heat energy by a collector of any kind filled with a fluid medium and after that to forward this energy by heat transfer to another medium, usually water or air. This second medium takes part directly in the heating of indoors (with direct air flow for instance), or it is part of the buildings' heat energy system, and it is connected to heating applications (radiators, floor heating, etc.) or mechanical installations for hot water supply.
- These solutions can be used well as an extension of the heat energy system to store heat energy surplus for later use to heat indoors or provide hot water. However, because the active energy system is basically separated from the solar energy collector technology, these solutions are applicable for a one-way energy transfer only.
- Experience however shows that buildings are not in balance with respect to thermal energy. The heat gain of façade surfaces differ due to the changing solar exposure caused by orientation. Because of that in conventional buildings temperature differences appear, which require considerable energy investment to be balanced.
- Additionally there are internal heat sources which result in heat surplus in the building where they appear. Such sources could be concentrated mechanical applications in a building, or also audience of a lecture hall for example. These heat sources could be also included in the energy system of the building. Today there are already tendencies for this, but mainly only air-conditional systems are installed to eliminate the heat energy surplus.
- Accordingly, the introduced systems are only applicable to collect external heat gain which can be used in a later period. They are not capable however to turn this process backwards, namely to conduct the heat surplus away, so they cannot support the cooling of a building. They also do not take part in the distribution of the heat gain, because they leave that to conventional mechanical installations (like radiators for example). Because of that they also cannot avoid the occurrence of temperature differences in the building.
- The aim of the invention is to create an energy system which on the one hand is able to utilize all heat energy which appears in the building, and also can balance the undesired heat differences indoors.
- The invention is based upon the following recognition.
- In terms of thermal energy, there are “heat gaining” and “heat losing” surfaces in any building. The first ones are usually perimeter structures (wall, roof), occasionally surfaces surrounding internal heat sources. These areas take the local heat gains. Heat losing surfaces are the ones which have no actual heat gain, therefore they are colder. This can be a ceiling, an internal wall or a floor, or even a perimeter wall, if it is currently not directly exposed to sunlight for instance (like a cold wall looking north). The ratio between heat gaining and losing surfaces always depends on the actual heat gain and the geometry of the building. In case of known examples, thermally speaking there is no direct connection between these two kinds of surfaces. Balance however is easier maintained if we create a direct connection between them, which can transfer considerable amount of heat energy rapidly.
- Because technically heat transfer can ideally be assured by water, a large amount of heat energy can be passed on to heat losing surfaces from heat gaining ones if the transfer can occur through a relatively large connection surface. The task can be solved in an even more simple way if also surfaces surrounding indoors are employed which are between the heat gaining and heat losing areas.
- Technically this can be solved if the already known thin containers are not only made along the heat gaining surfaces, or generally along or instead of the perimeter walls, but also the same thin containers are built along (or next/instead of) the surrounding surfaces of a given indoor space: one placed next to/instead of the heat losing surface and two parallel to the lower and upper slab structures. Finally the neighbor containers will be connected in a large area.
- This way the containers define a closed circle in which the medium (like water) can flow freely. There is no mechanical installation required to assure this, because the fluid infill intends to reach a thermal equilibrium, and therefore the mass heated up flows towards the colder areas.
- The mass of this structure is given by a fluid (like water), the weight of which is not inbuilt separately, but joined and connected continuously: from the perimeter wall the container fluid can flow towards the floor or the ceiling as well. This possibility is important because heat energy is transferred from the warm areas of a building to the colder ones in the fluid. Actual gains therefore spread in the whole building, so the useful thermal mass increases considerably. This is practical not only in winter but also during summer, because this way the overheating of the interior can be avoided.
- The system can utilize heat energy in several ways.
- In basic case the absorbed heat flows to the colder areas of the building, namely it will be used immediately.
- The collected heat however can be also more, then it is necessary to maintain ideal temperature. The part of heat energy, which cannot be used right away, namely the heat surplus can be stored in various ways.
- In the simplest case the heat itself is stored in the thermal mass of the closed circuits fluid volume. Because floors and also ceilings are connected to the walls, a large water volume takes part in the heat storage. The capacity of thermal storage is still limited of course, but it is still considerably higher, then in case of conventional structures.
- This solution works effectively if it is united with some cooling solution like when the system during the night is ventilated by fans through air pipes placed in the containers, so the heat surplus is transmitted back to the environment outside. The stored heat this time flows backwards (towards the exterior), the heat gaining surfaces during daytime become heat losers and finally all heat store capacity will be available for the next day.
- Another possibility, if the heat surplus is stored by an auxiliary system. This could be a conventional container in which the heat is diverted to, or it can be an underground storage also. The heat this case can be utilized for hot water supply or for heating support similarly to solar panel system.
- The invention is a heat energy system which can be used to heat/cool and maintain thermal balance in the interiors of buildings or building parts. According to the invention, the lower and upper surrounding surfaces of a space are used at least partially, and the surrounding surfaces at sides are used at least to the extent of two opposite surfaces; and in their proximity (or instead of them) thin containers are placed next to each other, and the neighboring containers are connected, and all the containers create one fluid volume with a connected and closed flow, and all the volume is filled with a heat energy transporting fluid.
- The invention is ideally realized when the closed flow fluid volume defined by the containers is connected to the conventional energy system of the building via a heat-exchange unit, and/or to an additional container defined closed flow circle and/or to a heat storage system.
- Another ideal form to realize the heat energy system according to the invention is, when a series-loop piping is attached to the side of the container and is used as a heat exchange unit.
- The fourth ideal way to realize the heat energy system according to the invention is, when the heat exchange series loop piping is built in the container itself.
- The fifth ideal way to realize the heat energy system according to the invention is, when a second container is built next to the container, parallel to its side and used as a heat exchanger.
- The sixth ideal way to realize the heat energy system according to the invention is, when the container is divided into two parts by a plate parallel to its the sides, and one half of it is connected to the closed circuit of the containers, while the other is the volume for the heat exchanger.
- The seventh ideal way to realize the heat energy system according to the invention is, when there is thermal insulation built before the container at the façade, and there is a thin cavity between insulation and container, which is connected with the exterior by ventilation pipes at the top and the bottom.
- The eighth ideal way to realize the heat energy system according to the invention is, when these air pipes are united with an air flow producer device, like a ventilator or fan.
- The ninth ideal way to realize the heat energy system according to the invention is, when the vertical containers built ideally at the façade of the building have vertical air pipes inbuilt, and each have one in- and outlet on both sides of the container around the bottom and the top.
- The tenth ideal way to realize the heat energy system according to the invention is, when the vertical air pipes in the container are united with an air flow producer device, like a ventilator or fan.
- The eleventh ideal way to realize the heat energy system according to the invention is, when the container placed outside of the perimeter wall is united with lower and upper horizontal containers by pipes penetrating the façade wall.
- The twelfth ideal way to realize the heat energy system according to the invention is, when the heat exchangers—which allow heat transfer between two closed fluid circuits made by connected neighboring panels—are built at the vertical containers of the closed circuits next to the sides of the separating wall between the interconnected closed fluid circuits, and the heat exchangers at both side of the separating wall are connected by pipes penetrating the wall.
- An additional ideal way to realize the heat energy system according to the invention is, when the heat exchanger—which allows heat transfer between two interconnected closed fluid circuits made by neighboring panels—is made when the separating wall—between two interconnected closed fluid circuits—is built by a container, which has a second container made next to it parallel to its side, or the container is divided into two by a plate, and one container is connected to the other containers of one interconnected closed circuit, and the second part or container is connected to the containers of the other interconnected closed circuit.
- Finally also an ideal way to realize the heat energy system according to the invention is, when the closed fluid circuit made by containers includes more neighboring rooms, the vertical containers are arranged only at the two ends at the perimeter and the lower and upper container(s) run through all the rooms, and the separating walls between rooms are built between the lower and upper container(s).
- The invention can be described in detail by one realization example with some distribution possibilities shown on the figures where:
-
FIG. 1 shows a building with a simple version of the heat energy system according to the invention on a schematic vertical section; -
FIG. 2 shows the horizontal section I-I of the building as shown inFIG. 1 ; -
FIG. 3 shows enlarged the part ofFIG. 1 which is affected by the invention; -
FIG. 4 shows the detailed section II-II of the building according toFIG. 3 ; -
FIG. 5 shows the detailed section III-III of the building according toFIG. 3 ; -
FIGS. 6 a-6 b show special version for the joint elbow elements on a perspective drawing; -
FIGS. 7 a-7 b show one container applicable for the system according to the invention on a perspective drawing and on cross section IV-IV according toFIG. 7 a; -
FIGS. 8 a-8 c show another container applicable for the system according to the invention on a perspective drawing and also on cross section V-V and longitudinal section VI-VI according toFIG. 8 a; -
FIGS. 9 a-9 b show a third container applicable for the system according to the invention on a perspective drawing and on cross section VII-VII according toFIG. 9 a; -
FIGS. 10 a-10 e show some buildings with different versions of the heat energy system according to the invention on one schematic vertical section for each; -
FIGS. 11 a-11 c show different solutions for the problem of openings; -
FIGS. 12 a-12 b show a special version for façade to realize the system according to the invention on vertical section and on horizontal section VIII-VIII according toFIG. 12 a; -
FIGS. 13 a-13 d show another special version for façade on a vertical section and on horizontal section IX-IX according toFIG. 13 a with a sketch of the operation; -
FIG. 14 shows the way to realize the system according to the invention replacing the building frame on a schematic perspective drawing; -
FIG. 15 shows the installation of the system which aids radiant cooling on a vertical section of the building; -
FIG. 16 shows schematic wiring diagram for the heat storage version of the system according to the invention; -
FIG. 17 shows the connection between the conventional heat energy system of the building and system according to the invention on a schematic drawing; -
FIGS. 18 a-18 d show variations for heat exchangers for the system on perspective drawings and the sections X-X, XI-XI and XII-XII according toFIG. 18 a; -
FIG. 19 shows additional versions for heat exchangers for the system on perspective drawing; -
FIG. 20 shows a version for heat exchanger for the system on vertical longitudinal section; -
FIG. 21 shows arrangement to assure heat transfer connection between rooms equipped with the system according to the invention on a vertical section; and -
FIG. 22 shows connection between the system according to the invention and known energy systems of a building. - For an easier description, it is reasonable to introduce the utilization of the invention first as a thermal energy system made for a small building where there are also closed rooms without windows. According to this, on diagrams 1-5 a relatively small building is shown with two floors and a pitched roof. There is only one
closed room 2 of thebuilding 1 which is equipped with the thermal energy system according to the invention. - The surrounding surfaces 9-14 of the
room 2 are given from one side by theperimeter wall 3 of thebuilding 1, from the other sides by additional interior walls 4-6), also by thefloor 7 from the bottom and by theslab 8 from the top. Each of them is made of conventional materials of building practice (to understand the invention, the structure of the building, the different structural elements and openings such as windows and doors, appliances or the utilized materials have no importance, they are not indicated on the Diagrams either, and their detailed introduction is not necessary, either). - As it can be seen in a more detailed fashion on Diagrams 3-5, next to the surrounding
surface 9 of theperimeter wall 3, next to theopposite surrounding surface 10 of theinterior wall 4, above the floor's 7 surroundingsurface 13 and below the slab's 8 surroundingsurface 14 there arethin containers 15 attached in theroom 2. Thecontainers 15 have different size and their surface are about the same as the area of the surroundingsurfaces - In this case the
containers 15 are made of plastic, but steel, aluminum or other materials can also be used. Diagrams 3-5 show a simple realization case, when containers are made ofplastic plates 16 parallel to 9, 10, 13, 14 surfaces andside plates 20 welded together. - The
containers 15 at vertical surroundingsurfaces bottom surface 16 of theupper container 15 below the surroundingsurface 14 can have an additional layer forfinish 18. This can be wallpaper or any other suitable material, ideally heat conducting. On thetop side 16 of thecontainer 15, which lies on thebottom surrounding surface 13, there is a load-bearing layer and awalkable floor finish 19. - There are
joint elements 20 along thewhole side 17 where neighboringpanels 15 meet each other. In the current example, these elements are plastic tubes melded in theside 17 of the panels. The neighboringpanels 15 joiningelements 20 are at the same location for each panel, and they are connected by tube connecting elbow fitting 21 but they could be connected by any other technology (like welding, gluing, by heat expanding elements, etc.). The diameter of the joiningelements 20 and elbow fitting 21 are as large as possible to assure an effective flow. - The
containers 15 are prefabricated and made together with thejoint elements 20 in a factory. After they are put to their places in theroom 2 of thebuilding 1, thejoint elements 20 placed in pairs for neighboringcontainers 15 can be connected. With this a system is made, in which thecontainers 15 create a closed circle and an interconnected volume, in which the fluid medium can flow freely. - After all joining
elements 20 are connected, the containers' internal volume can be filled with fluid. Because in case of heating in buildings the heat transfer medium is normally water, in case of the introduced system here the fluid infill of thecontainers 15 is water also, and in later introduction the fluid in general may be referred as water, with the amendment, that it could be naturally other fluid applicable for this purpose. - In the system according to the invention the same fluid medium in the containers absorbs and stores the heat, also working as a heater/cooler unit (one part of the fluid surface may be small but joined with the rest, it can provide a significant heat storage capacity).
- The heat gain of the surrounding surfaces 9-14 in the
room 2 can be different because of their location, which causes temperature differences in thebuilding 1. The flow of the fluid medium in thecontainers 15 is generated by the temperature differences between heat gaining and losing surfaces. Thermal balance is assured only by the fluid itself, which flows from heat gaining surfaces to the colder heat losing ones. - During daytime, naturally the building's 1 perimeter façade is the heat gaining surface in the
room 2 and heat loser is any surface 10-14 which is connected to the heat gainer one, but it is colder because of lack of actual heat gain. Solar heat gain warms the fluid in thecontainer 15 reaching it through thewall structure 3. The temperature balance between heat gaining and losing surfaces causes the warmed-up fluid to flow from the container next to theperimeter wall 15 to theother containers - The flow can naturally occur in both directions, therefore if any surrounding surface 10-14 of the
room 2 becomes an actual heat gaining area because of any heat load, or the perimeter façade cools down and changes to heat losing area, the direction of the fluid flow can be opposite as well. - According to this, the system works during nighttime in the opposite way. The thermal mass of the fluid utilizes the solar gain to protect the interior against cooling. This is similar to the effect of the thermal mass in conventional buildings, but in this case the actual gain is spread in the whole system, so the amount of utilized heat energy increases significantly. This is practical not only in winter but also during summer, because this way the heating up of the interior can be avoided.
- Because of the introduced operation of the thermal system according to the invention, stable temperature can be maintained in the
room 2. - For a full introduction, the introduced simple system has to be extended with some technical information.
- The
containers 15 are attached to theperimeter 3 and alsointerior wall 4 and to theslab 8 by railings and bolts. This can ideally be made by screw joints with holes prepared on theside 17 or simply through sheaths, which allow the screws to reach the wall directly through the container. - Figures show no insulation between the surrounding
surfaces containers 15. The need for insulation always depends on the current conditions. Generally some insulation may be necessary if the goal is to keep all heat gains in theroom 2 and heat should not be passed beyond thecontainers 15 to the other parts of the house. This can be especially practical when other building parts are allowed to be colder for any reason. Yet there are some cases, when lack of insulation is ideal, for example in case of theperimeter wall 3 when the goal is to allow solar gain to reach the fluid volume. - As it was mentioned before, the
containers 15 after finished assembly have to be filled with fluid to keep the presence of air to minimum. For fluid infill for at least at one point in the bottom as shown inFIGS. 1 and 2 , at the edges ofwalls floor 7 and at one location at the top diagonally at the edges ofwalls slab 8 thejoint elements 20 are joined with a special elbow fitting at the bottom 21A and at the top 21F. - As it can be seen in
FIG. 6 a, on both sides of the joint elbow fitting 21A, perpendicular to the plane defined byjoint elements 20 andjoint valves 22 there is onecheck valve 23 for each side. The principle of thecheck valve 23 is similar to the automatic self-closing valves used for hose joints, namely the check valves in the joint fittings open automatically when the joined elements—like a hose used for fluid infillare put in. - The upper
joint fitting 21F is generally made the same way, but opposite to onejoint valve 22 its volume is increased and on both side of the resultedair lock 24 are thecheck valves 23 placed. - Fluid filling occurs through one of the
check valves 23 of joint elbow fitting 21A and when thecontainers 15 are filled up completely the rest of the unnecessary water leaves through thecheck valve 23 of the upperjoint elbow 21F. Then thecheck valves 23 can be closed—by removing the hoses—, so the air presence in the system is minimal. Theair lock 24 leaves space for expansion of the water in case of warming up. - The
side 16 of theupper container 15 can also be made to aid the flow of leaving air. In the whole closed water circuit the highest point is the air lock and theupper side 16 of thiscontainer 15 can be tilted slightly to this direction—namely the twosides 16 of thecontainer 15 are not parallel this case—. - The
check valves 23 ofjoint elbow fittings - The
joint elements 20 of thecontainers 15 are closed with a membrane in the fabrication process to avoid any pollution to enter the containers during transportation and construction. Air is also pumped out of the panels before placing the membrane. During the assembly, the connecting elbow between 2 joint elements opens the membrane automatically. - Depending on their purpose the now introduced containers can be made in different variations.
- The
simplest containers 15 consist ofsides 16 andedges 17 made by sheets only. Thecontainers 15 are welded (in case of plastic or steel) or assembled by gluing with a frame (in case of glass). These can be used if there is a supporting surface next to them, to which they can be attached to. - The
container 15 does not necessary have to be fixed directly to the supporting surface, it can also be a suspended ceiling. Thecontainers 15 at the ceiling are made horizontal and normally with and opaque surface, similar to conventional ceilings, with grid work of metal channels and hanging spacers. - These simple made
containers 15 have limited structural strength and practically they can support their own weight only (naturally in their own weight includes the water also). This is why they can be used only as fixed to a supporting surface as mentioned above. At the same time alsocontainers 15 can be necessary, which can be built in without supportedsides 16, for this the self-supportingcontainers 15 can be made, as shown inFIGS. 7 a and 7 b. - These self-supporting
containers 15 are surrounded by astructural frame 25. The frame as shown in Figures is made by two horizontal and vertical U beams. Thesides 16 are fixed to the U beams' edges, which makes the third side of the U beams theedges 17 of thecontainer 15. In case of thicker containers the frame can also be made by L beams naturally, which have to be covered by anedge 17, i.e. this case theedges 17 and theframe 25 are two different structural elements. - In case of
containers 15 withlarger surface spacers 26 can be placed between thesides 16 inside thecontainer 15 in a way that they do not disturb the flow of water—practically placed parallel to the flows current withperforations 27. Thesecontainers 15 can be used as independent wall elements (panels). - The
container 15 used for roofs have to be mentioned as well. These are made with similar structure with the ones introduced above, these are also self-supportingcontainers 15, but in case of structural load of precipitation also has to be taken into account. The load-bearing frame this case is normally made as a conventional structure, like steel or wooden frame. - The
containers 15—either simple or self-supporting—are normally made by steel-wood or plastic sheets, i.e. they are opaque. In addition to that thecontainers 15 can also be made in a way that at least one of its sides is made by transparent or translucent material. The transparent or translucent material is generally plastic but also glass can be used. The latter is primarily applicable forcontainers 15 used for roofs. - As it could be seen on the built example introduced earlier, one
container 15 is laid on thefloor 7. This one has to have load-bearing capacity. Because of different reasons, thecontainer 15 may have to have structural strength in other cases as well. Basically there are two options to make a load-bearing container. - One solution is that the thickness of the containers' 15
sides 16 and edges 17 is increased. This possibility is simpler structurally but its disadvantage is, that because of thicker sheets less heat can reach the water. Also the efficiency during heating and cooling drops as well. - Another option is if the
container 15 is surrounded by load-bearing frame 28 (as shown inFIGS. 8 a-8 c) and between the sides 16 a there is a bracing 29 inbuilt (similar to the version mentioned earlier, like a frame of longitudinal 30 and cross 31 spacers made by steel). Both load-bearing frame 28 and bracingframe 29 are made similar to the self-supporting version introduced above, but they are made by stronger materials or design. So the load-bearing frame 28 can also be made by U beams, these can also give theedges 17 of thecontainer 15. Thespacers perforations 27 for example—. This solution results less material use and structural weight but its disadvantage is that the flow can be influenced by thespacers - The
containers 15 made this way can bear more weight in addition to their own. This solution allows also to have no need for bracing or load bearing elements for the building (like beams and columns) between thecontainers 15. Thecontainer 15 inFIGS. 9 a-9 b is made in this fashion and only differs from the others by a load-bearing frame 32 in which the U beams are turned inside of the container. - In case of this design generally opaque materials are used, because this way the
thick steel sheets 16 can also participate in load-bearing, but also transparent design is possible, which can be made mainly by glass. This latter design is primarily for roofs, because the structural load for roofs is generally lower than in case of walls. - The structure of load-bearing
containers 15 for floors is very similar to the general load-bearingcontainers 15 and its materials are generally opaque. Because the nature of structural load is obviously different for this case, and because the support has to be done for the whole surface this one can only be done by frame ofinner spacers 30 and 31), with a freely chosenoverlay 19 which consist of a load-bearing layer and a walkable finish. Thespacers overlay 19 to the slab below thecontainer 15. This case a load-bearing layer has to be made below thecontainer 15 as an additional structural layer. - The load-bearing
containers 15 used as floor can also be made with increased structural capacity, so theoretically it can also replace slabs, if it fulfills the structural demands. - To sum up, the load-bearing containers' 15 material is generally steel sheets, but also transparent/translucent design is possible, which normally can be made by glass. Containers used for floors and ceilings are exception, which generally made opaque. The design depends on the architectural concept in the end.
- As the description above implies, the
containers 15 can be used in different ways depending on their design. - The simplest way is the method introduced earlier, when the
simple containers 15 are built to the walls of the room from inside. The water circuit becomes an inner core and each side of it is an interior structure. This case the water circuits function is only cooling/heating and energy distribution. Because it has a large active surface, it can already drop the necessary energy consumption already in this case. - Although in the example the building with several rooms is equipped with the system according to the invention in one space only, in reality this is only typical for buildings with one space (like halls or open plan office with one main room). If the building has more spaces on one floor, then normally more water circuits are required. They could be ones without any façade surface or on the contrary, they could be connected to the exterior with one or two maybe even with three (including roof) perimeter surfaces.
- Naturally the variations for building
containers 15 are unlimited. InFIGS. 10 a-10 e some schematic versions for container arrangement can be seen, which can be made by using the containers introduced earlier, with some special solutions for each respectively (to show the differences more clearly for the most of these Figures the same building is shown as in the first example). - In the version in
FIG. 10 a the system according to the invention is made on both floors and also in the roof. Thecontainers 15—similarly to the earlier example—are internal and placed everywhere along the planes offaçade walls 3 and theroof 33. In the two spaces on the lower floor thecontainers 15 make one independent fluid circuit on both sides of the separatingwall 34. On the second level there are three spaces included in one water circuit in a way that—looking parallel to the main axis of thehorizontal containers 15—two vertical containers are placed next to the most external walls of these rooms, this case the two facingperimeter walls 3 and the lower and upperhorizontal containers 15 run through all rooms included in the system and the separatingwalls 34 between the spaces are between thehorizontal containers 15. - The
containers 15 can also be placed on the external surface of the façade expressly to use solar energy.FIG. 10 b shows an arrangement for that. The containers are not only placed outside the façade walls but also outside theroof 33.FIG. 10 b also shows that there could be rooms, namely this case on the lower floor, which all have façade wall and the two façade surface have opposite orientation, or if there are more rooms and each of them has independent water circuit, there could be a space like this case the middle room on second level which case it is surrounded by another spaces on both sides. - The
container 15 can be built instead of aconventional façade wall 3 orroof 33 as it can be seen inFIG. 10 c. - Finally, using the
containers 1 even independent buildings can be built. Floor and two perimeter walls and the roof of the pavilion inFIG. 10 d are made bycontainers 15. Similarly all perimeter surface of the hall inFIG. 10 e is made bycontainers 15 only, but because its size thecontainers 15 are supported by a load-bearing structure 36. - It has to be noted here, that until now there have been examples mentioned only where the space was surrounded by four
containers 15 in total, in reality in case of larger surfaces it would be difficult to use one large container only, therefore the system can be made by more independent smaller containers also. - Although normally it is not necessary, in these cases it could happen, that the water circuits next to each other have to be connected. There are two possibilities to do this. One option is, that the
joint elements 20 of thecontainers 15 to be connected have a joint elbow fitting 21A or 21F, which hascheck valves 23 on both sides. Through these using a short pipe the two neighboringcheck valves edges 17 of the containers have themselves joint check valves inbuilt which also can be joined by a hose. - Also it has to be mentioned here, that in case of some building design it may be unavoidable to place the container on or next to a wall which has openings. In such cases as a technical compromise a thinner container compared to the other containers used in the room can be utilized.
- In addition to that another important point has to be taken into account, because water obviously cannot let through these elements, therefore these parts cannot be included in the water circuit. There are several possibilities to assure water flow.
-
- The simplest case shown in
FIG. 11 a when theopening 37 is as high as the ceiling height or with additional structure it reached from floor to ceiling (like parapet wall and window). This case in the area of theopening 37 the water circuit can be omitted, namely there is no container in that zone. In place of the missing containers there areexpletive elements 38—naturally also on the wall facing theopening 37, which cannot be shown on the drawing—. These can be completely solid but also containers identical to the other containers but they are closed. In sense of thermal energy the water in them is still useful. - If the opening is as high as the ceiling height but its width is less than the general width of the
containers 15 then—as shown inFIG. 11 b—then theother containers 15 can be still placed in the zone of theopening 37 and the water can pass along the sides of theopening 37trough pipes 39 and reach the nexthorizontal container 15. This option can be made also, when the opening is wider but between theopenings 37 dividing frames can be placed which inhabit thepipes 39. - Finally—as shown in
FIG. 11 c—the other containers can be still placed in the zone of theopening 37 and thecontainers 15 can be connected to the neighboring water circuits through thejoint elbow fittings sides 17 of thecontainers 15.
- The simplest case shown in
- If the
opening 37 is not as high as the ceiling height (like parapet wall and window for example) then below or above theopenings 37containers 15 with reasonable size can be built and in the zone of the opening the water circuit can be made along the sides of the opening the same way like in the earlier cases, but as an extreme solution the water circuit can also let in the neighboring circuit also. - As
FIG. 10 b shows and also can be seen inFIGS. 12 a-12 b thecontainers 15 can also be placed as a front wall to profit from solar energy. This case between the joint elbow fitting 21 of thejoint elements 20 of thecontainer 15 placed as a front wall and joint elements of the lower and upperhorizontal containers 15 there arepipes 40 passing through holes in theperimeter wall 3. This joint method of course can be used everywhere when vertical andhorizontal containers 15 placed on two sides of a wall have to be connected. Thecontainers 15 can also be placed outside theroof 33 when also the method mentioned above is applicable. - The
container 15 increases thermal insulation and lowers the heat load (the front wall practically acts as a solar panel). - The
container 15 can be built instead of a conventional wall as a perimeter self-supporting structure. This can be seen inFIG. 10 c and more detailed inFIGS. 13 a-13 b. This case the load-bearing structure is acolumn grid 45 inside and/or along the perimeter of the building. Thecontainer 15 is built in the conventional load-bearing structure 45 as a structural infill or as a curtain wall on the façade. The self-supportingcontainers 15 serve this purpose. - The
container 15 can be transparent (glass or plastic) or opaque (typically plastic or steel but it can be made by other materials also). Depending on the architectural concept internal side of thecontainer 15 has a transparent or translucent protectingfinish 18 but also other materials can be used. - Similarly, instead of conventional roof covering (tiles or slates, etc.) self-supporting
containers 15 can be built on theroof 33. Naturally the load-bearing structure of theroof 33 is still necessary. As it was mentioned earlier, in case of thesecontainers 15 the structural load of precipitation also has to be taken into account. - Load-bearing
containers 15 as shown inFIGS. 9 a and 9 b—similarly to panel buildings—can give the structure of the building also. This case thefaçade wall 3 and thecontainer 15 are built as one structure. This is also possible in case of an internal separating wall and thecontainer 15 next to it. The geometry of thecontainers 15 load-bearing frame 32 resultsvertical columns 50 andbeams 51 between thecontainers 15 as shown inFIG. 14 . The structural load is taken by thecolumns 50 andbeams 51 between thecontainers 15 which are connected to make a water circuit as structural infill elements between thecolumns 50 and beams 51). - The materials used for
container 15 can be transparent/translucent (glass or plastic) or opaque (typically plastic, steel or other material). For the containers design it is important, that external heat gain should be able to reach the water volume. Because of that the external side of thecontainer 15 is typically made by a heat and light conducting material. If that is not possible because of any reason, thecontainer 15 can also be made by opaque material. This case thecontainer 15 is made with an absorber surface finish similarly to solar panels. - As it was mentioned before, depending on their function thermal insulation for the
containers 15 may be necessary. - If the
container 15 is built inside the building (simple internal, internal structural infill or internal load-bearing type) thermal insulation is normally not required unless a special task or demand does not make it reasonable to use. Because the load-bearingcontainers 15 used forfloor 7 is laid on the slab as an interior structure thermal insulation is also not made this case. - If the container is built as a perimeter wall then depending on outside temperature conditions thermal insulation of the
container 15 might be necessary which is placed on the external side. - The
containers 15 operation is ideal if the heating effect of solar gain reaches thecontainers 15. Therefore if thermal insulation is used then ideally it is made as transparent/translucent so sunlight can get to the water. If thecontainer 15 is made by opaque materials the thermal insulation ideally is still a transparent system. - Thermal insulation can be typically two- or more glass or plastic sheets with voids in between. This can be done by prefabricated closed gas cells for example like
thermal insulation 41 inFIGS. 12 a and 12 b, or it can be made by layers of glass orplastic insulation sheets 48 withair cavities 49 between them and air-tight proof sealing along their perimeter as it can be seen inFIGS. 13 a and 13 b. - The thermal insulation can also be placed during construction when the
containers 15 are positioned, but thecontainer 15 generally is applicable for panel building technology, therefore thethermal insulation 41 can be placed on thecontainer 15 already during fabrication. Similarly to thethermal insulation 41 other layers can be placed on thecontainer 15 like thewalkable finish 19 on load-bearingcontainers 15 used for floors. On the internal surface of the container a light-transmitting transparent/translucent plastic finish 18 can be made or also another material can be used depending on the architectural concept. - Generally it is necessary to use thermal insulation on
containers 15 for theroof 33, this can be made similarly to thecontainers 15 built as a wall typically with transparent design. - As it can be seen, the water circuit can utilize also the solar heat gain in case the
containers 15 were built outside or instead theperimeter wall 3. The efficiency of the system compared to conventional solar panels is lower because some part of the solar energy is absorbed by theinsulation 41 but the heat loss also decreases and the utilized surface area is larger considerably. - Another important factor is, that inside the building the
perimeter wall 3 is not the only heat absorber surface, therefore what the wall cannot take is utilized by the other elements of the water circuit (typically the floor). Therefore although one element's efficiency is lower than solar panels, together they still are capable to absorb and use heat effectively. - Naturally the containers not only collect solar heat gain but they are also capable to radiate it back during the night.
- The building example introduced earlier shows the simplest case, when the
containers 15 are transparent and are fixed to opaque structures. Another case when thecontainers 15 are on the external side of theperimeter wall 3 therefore the system has external effects: it heats up because solar gain or cools down during the night. This case the systems design is identical to the earlier example, the difference is how it works: during daytime at theperimeter wall 3 thefloor 7 and partially thewalls - The operation becomes more complex if the facing walls included in the system are both perimeter walls as it can be seen on second level of the building in
FIG. 10 a. This case the direction of the heat flow can change several times during the day depending on which side is reached by sunlight or what are the temperature conditions indoors. - It can happen that the heat storage capacity of the closed circuit is not enough and more heat arose then it is necessary to maintain ideal temperature, namely heat surplus appears. This can occur because of internal heat sources (like for example concentrated mechanical systems, server room, or audience of a lecture hall as mentioned earlier) or because of external heat gain (solar heating effect). One solution for this is if the thermal storage capacity is designed according to the maximal heat load of a certain operation period (like for a day) and until the next period the water circuit can give the heat gain back.
- There are several ways to increase the heat return during nighttime.
- In
FIGS. 12 a and 12 b thecontainer 15 placed beforeperimeter wall 3 hasthermal insulation 41. Between the container's 15side 16 andthermal insulation 41 there isair cavity 44. In thethermal insulation 41 there are rows of ventilation holes 42 near to the container's 15 top and bottom. When outside air cools down, it flows from the lower ventilation holes 42 through theair cavity 44 and leaves through the upper ventilation holes 42). During the flow the air warms up and the water in thecontainer 15 cools down. The process can be intensified by increasing the speed of flowing air in thecavity 44 by an airflow producing appliance 43 (like a ventilator) shown on the Figure schematically. - Night cooling can be increased also by ventilation. In
FIGS. 13 a and 13 b thecontainer 15 hasventilation pipes 46 inbuilt, in the middle of thecontainer 15 and next to each other. Theventilation pipes 46 are made in pairs and in a way that they are in direct contact with each other on the largest surface area possible. Theventilation pipes 46 are connected to the outside and to the interior by aconduct 47 on each side at the top and at the bottom. At the external side theconduct 47 also penetrates thethermal insulation 41 naturally. On both sides of thecontainer 15 eachconduct 47 is connected to anairflow producing appliance 43 in a way that in case of both lower andupper conducts 47 the airflow producing applications are placed in pairs and work in the opposite direction. - Ventilation takes place as following.
- In winter—as it can be seen in
FIG. 13 c—theairflow producing appliance 47 takes fresh air in from outdoors through the lower conducts 47 which enters the interiors through the upper conducts 47, meanwhile the otherairflow producing appliance 43 removes used air through the upper conducts 47 which leaves to outside through the lower conducts 47. In theair ventilation pipes 46 placed in pairs heat exchange takes place between the fresh and used air with oppositional air flow—through the shared surface ofventilation pipes 46 in contact—and also between the fresh air and the water in thecontainer 15, so the fresh air intake warms up before it reaches the interior. - During summer—as it can be seen in
FIG. 13 d—the flows direction is opposite. Theairflow producing appliances 47 take fresh air from the upper conducts 47 to the interior through the lower conducts 47, while also push used air fromlower conducts 47 throughupper conducts 47 to outside. Because of the heat exchange between fresh air intake and leaving air and also between fresh air and the water in thecontainer 15 the air cools down before it enters the interior. - The radiant night cooling of the system can also be intensified to a lesser extent by a simpler solution also. In
FIG. 15 abuilding 52 can be seen with flat roof and withcontainers 15 inbuilt. On theroof 53 of thebuilding 52 there are skylights which below thecontainers 15 are simply made by transparent/translucent materials. During night thisskylight openings 54 also contribute to the radiant cooling. - The disadvantage of this methods introduced is, that the heat gain is not utilized, energy savings are limited to cooling only.
- The other option is when the heat surplus of the system is stored by another appliance. This can be done the easiest way if a
heat exchange unit 55 is connected to the water circuit of thecontainers 15—as it can be seen inFIG. 16 . To achieve that in one of each two containers' 15 connection there is a joint elbow fitting 21A and 21F withcheck valve 23 through which the water circuit can be connected to one circuit of theheat exchanger 55. The other circuit ofheat exchanger 55 has aheat storage appliance 56. Thereby the water circuit of thecontainers 15 can remain independent because between the two circuits there is only heat transfer and no fluid exchange. - The
heat exchanger 55 collects warm water from the upper area of the containers' 15 placed next to the walls and warm water is replaced with cold one. Thereby not only one but two water circuits appear in the system: one vertical which makes water flow fromcontainer 15 at thefloor 7 tocontainer 15 at thewall 4 andslab 8 and a horizontal which flows warm water from the connected water circuits to theheat exchanger 55 from which the returned cold water cools the upper side of thecontainers 15 at theslab 8. Both circuits are closed so continuously the same water runs in the circuits. The system after this stores the heat, this can be a heat storage unit used with solar panels or also underground heat storage. - The
heat exchanger 55 works as a heater during the winter and heat flows back to thecontainers 15. Warm water flows upwards therefore theheat exchanger 55 is not connected in the upper area of thecontainers 15 but in the lower one. Warm water flows in thecontainers 15 from which cold water leaves the system. The heat can be stored heat from earlier or another solution, like gas heating or eventually both at the same time. Connection betweenheat exchanger 55 andcontainers 15 can be switched from summer to winter mode byvalves 57. - The solution of the invention cannot meet all the energy demand of the building in itself so the conventional energy system of the building is also necessary. This conventional energy system can consist of any conventional appliances. The conventional energy system shown in
FIG. 17 has for example a furnace 59 a solar panel 60 a heat storage appliance 61 a geothermal heat pump 61 a coolingappliance 63 andheaters 64 or floor heating, and hotwater supply unit 65. The conventional system and fluid circuits of containers have to be harmonized for ideal operation and control. - The
conventional energy system 58 and the water circuit ofcontainers 15 cannot be connected directly because—as it was mentioned before—it is essential to keep the water always in closed circuit so only heat will be transferred from one circuit to the other. - There is another reason for separated operation of the two systems. The conventional system always consists of an energy source and an active surface (heat transmitter) like a radiator. The active surface compared to the room is relatively small. Because of that the heater has to have higher temperature then the desired temperature of the room, like for example a typical radiator operates with 60-90 degrees Celsius hot water. In case of the
containers 15 this surface is significantly higher since all container surfaces are also cooler/heater surfaces. Because of that water with much lower temperature is sufficient for heating. This results significant energy savings and also allows that geothermal energy itself to be enough without uniting it with gas heating. - Accordingly the water circuit of the
containers 15 and the conventional energy system defines independent circuits and the connection between them is made by theheat exchanger 55. - There could be several variations for heat exchanger.
- In case of the simplest and classical solution the
heat exchanger 55 is an appliance with two water circuits as shown inFIG. 16 . The water circuit of theheat exchanger 55 is connected to the water circuit of thecontainers 15 while its other circuit is connected to theconventional energy system 58 of the building. - The
heat exchanger 55 can be made in a way also that betweenhorizontal containers 15 and their finish surface below or above them there is a counter flow serpentine piping 66 placed as it can be seen inFIGS. 18 a and 18 b (for simpler presentation only theupper container 15 and counter flowserpentine piping 66 is shown, in case of thelower container 15 the design is naturally the opposite). The counter flowserpentine piping 66 is connected directly to theconventional energy system 58. The container's 15horizontal side 16 and the counter flow piping 66 create a large active contact surface where the heat exchange takes place. This contact surface makes connection between the two circuits so one circle of theheat exchanger 55 is the container itself and the other is the counter flowserpentine piping 66. - The efficiency of the
heat exchanger 55 can be increased further by the solution shown inFIG. 18 c. Oneside 16 of thecontainer 15 is made withchannels 67 in which the counter flow serpentine piping 66 can be placed. This maximizes the contact surface area between serpentine piping 66 and theside 16. - The highest efficiency can be reached if the counter flow serpentine piping 66 is built in the
container 15 as it can be seen inFIG. 18 d. - (The dimensions for valves in
FIGS. 18 c and 18 d are the same as on 18 a and 18 b. Therefore both layouts can be understood without repeating the drawing inFIG. 18 a for all Figures.) - Also the large active surface of container's 15
side 16 can be used for to make aheat exchanger 55 as shown inFIG. 19 . This case there is anothercontainer 68 attached to theexternal side 16 of thecontainer 15 in a way that the containers' 16 and 68side 16 are in contact for the whole surface. Thissecond container 68 can be also thinner then thefirst one 15 and is connected to the conventional energy system of thebuilding 58. Because the twocontainers containers - The second container's 68 design is similar to the simplest version of the containers for
water circuit 15 but naturally is made with twojoint elements 20 only. Through these thecontainer 68 can be connected to theconventional energy system 58. Thejoint elements 20 can be built in a conventional way according the actual demands. - The
second container 68 can also be made inside of thefirst container 15 itself in a way that it is divided by aninternal dividing plate 59 which is parallel to thesides 16 and one part gives the water circuit of thecontainers 15 and the other theheat exchangers 55. Theplate 59 built betweencontainers container 15 thejoint elements 20 are made as introduced earlier, but also this case for thecontainer 68 there are only twojoint elements 20 positioned to connect to theconventional energy system 58. Thedouble container 15/68 can also be made as self-supporting or load-bearing this depends on naturally where it will be placed. - In the
second container 68 with separating walls a counter flow serpentine layout can also be made. - As it can be seen in
FIGS. 10 a-10 c, if there are many rooms in the building their relation to each other and to the buildings perimeter can be different in many ways. If they are equipped with independent water circuit, then it can happen that connecting these different water circuits becomes reasonable, so the heat gains of the rooms can be balanced between each other. - Such layout of rooms can be seen for example in
FIG. 10 b, where two rooms on the ground floor have independent water circuit, the two circuits are next to each other and in both circuits there is acontainer 15 placed on the façade but with opposite orientation (this can be for example east and west facades). This case if between the two water circuits have heat exchange connection, then both water circuits have heat gain to be transferred to the other in the morning or afternoon, when Sun shines from east or west. - The same goes for rooms with south and north orientation, when the heat exchange connection uses the south gain and can heat the north side as well. Similar case, when if we try to supply an internal rooms heat demand at least partially by the heat surplus of a water circuit with a
container 15 on the façade. - The process can also work for water circuits above each other, like when the heat surplus of south facing water circuits' above each other is transmitted upwards where on higher floor in a machinery area a heat exchanger can take it. This way there is no need for heat exchanger on every floor.
- Finally it can be also necessary—like on second floor of the building shown in
FIG. 10 b—when in one room—this case in the middle rooms water circuit—there is an intensiveheat producer appliance 56 which heat can be used to heat the neighboring room and thereby the room with intensiveheat producing appliance 35 can also be cooled. - The heat exchanging connection between neighboring rooms (next to or above each other) can be made with second containers as introduced earlier.
- A practical solution for this can be seen in
FIG. 41 . On each side of the shared wall 34 (or slab) of the neighboring rooms there aresecond containers 68 placed between thecontainers 15 and thewall 34. On both side of the separatingwall 34 the second containers havejoint elbow fittings 21 placed injoint elements 20 and these are connected to each other bytubes 70 which penetrate thewall 34 through holes. Because this case thesecond containers 68 are connected to each other, they have to be made with morejoint elements 20 just like in case of thecontainers 15. - As it can be seen, the two
containers 68 and the connectingtubes 70 make a water circuit just like thecontainers 15. Heat surplus in one room is transmitted fromcontainer 15 placed at the separatingwall 34 to thesecondary container 68 next to it. The warmed up water runs through thetubes 70 in thewall 34 to theother container 68 which also transmits the heat to thecontainer 15 next to it. The water circuit made bycontainers 68 carries the heat surplus to the room with heat demand. - This introduced layout naturally can be made with counter flow/serpentine piping 66 or with
containers 15 divided into two as shown inFIG. 20 . - If in the building the separating
walls 34 are only made by panels and there is need for heat exchange between two rooms, then it is practical to use thecontainer 15 divided into two parts as shown inFIG. 20 . This case the heat exchange connection can be made without a heat exchanger in one simple element. - As the connection between the containers' fluid circuit and the other energy system—
conventional energy system 58,heat storage unit 56 or another water circuit—is optional and not static, these joints have to be controlled. Because of that there are pumps and valves built in between the connection of the fluid circuit and the heat energy system, which are controlled by an applicable monitoring system, in harmony with the conventional energy system of the building as well. This kind of monitoring system is not part of the invention, and it is conventional technology known well by professionals, therefore its detailed introduction is not necessary. - Accordingly the complete energy system consists of several types of elements: for one part the containers' water circuits are built 101 which work as a heat gaining and also heat losing (radiating) surfaces and also as heat balancing units.
- The water circuits radiate heat surplus directly back to environment (like with night flush cooling for example) or forward it to the
heat exchanger 102 units which takes it with another water circuit. The heat exchanger let this energy to be stored in a way, like by a heat storage unit orunderground container 103. - Ideally the system can store as much heat during the year then necessary for heating period. In case when this is not possible, then some other heat source is also required: ideally geothermal or CHP (Combined Heat and Power) is used 104 which can provide heating water with lower temperature effectively, but also it can be gas or
electric technology 105. The stored or produced heat energy warms the containers' water circled through the heat exchanger. - In addition to that the system can be extended with conventional
solar panels 106 to increase the stored heat, and also in case there is not enough container surface in all the rooms, then radiator orunderfloor heating 107 is also needed. - If the containers' surface is not enough or when the climate conditions require then also conventional cooling solutions may be necessary 108.
- Photovoltaic panels or wind turbines and naturally any other technology can be used to cover the energy demand, but also the energy produced by
CHP 109 can be utilized. - The system is operated by a
central control unit 110, which monitors the temperature of air and surfaces and controls the system accordingly. This central control unit is not part of the invention and it is well known by professionals, therefore is not necessary to introduce it here in detail. - The combined systems control works in the following way.
- The control unit of the circulation network is a thermostat which works the same way as control units utilized for floor heating or hot water supply technology. The thermostat monitors the temperature of the containers, and when the actual value is out of the predefined margin (generally set by the user), the heating/cooling system turns on. The control is primarily based on temperature, the heat relations of fluid volume is assured by the heat balance property of the fluid itself.
- The system has 0+3 performance levels.
- In “
phase 0” the heating/cooling is not in operation, solar and other heat gains can balance the losses. This state is much longer compared to conventional buildings, because heat gains do not appear locally (in conventional buildings the north side is always cold for instance). - In case of heating, it is always the heat stored in thermal mass that covers the demands first (heat flows to areas where it is required). When this is not enough, heating starts to warm up perimeter walls, because these walls cool down first anyway (phase 1). Heat reaches the wall directly through the heat exchange unit attached to the container. Naturally, from there it spreads to the other elements, however, it is the perimeter wall area that remains the main heating source.
- If this gets insufficient, in addition to the perimeter wall the floor areas join the heating process (phase 2), assured by the same heat exchange unit.
- In
phase 3, besides the floor and the perimeter wall, the interior walls also join in the heating process. This is rarely necessary, though, only in case of peak demands. - In case of cooling,
phase 0 relies on the whole thermal mass of the fluid circuit (obviously it works the opposite way, heat is taken by the cooler areas of the fluid volume). - In
phase 1 the perimeter wall is turned on. The cooling takes place by the heat exchange unit, which takes heat from the structure along the upper line of the wall and from the ceiling in the same area. This hot water is placed in a heat storage unit, which can be hot water supplies (like baths/showers) or other heat storage applications (like underground heat storage). The heat exchange units connect two circuits: one is the fluid circuit of containers, the other is between the heat storage and the heat exchange unit. - In
phase 2 the ceiling works together with the perimeter wall. - In
phase 3 in addition to the ceiling and the perimeter wall, the interior wall joins the cooling process.Phase 3 is only needed in case of peak loads, when climatic conditions or function requires it. In Hungary for example, generally phases 0+1+2 for heating andphase 0+1 for cooling are sufficient, but naturally the system is applicable for other climates also. - The multi-phase operation naturally requires the control and the division of the system into sectors.
- The system allows the heating and cooling of the rooftop as well, similar to the other spaces introduced above. The difference is that “night flush cooling” or radiant cooling (when stored heat is radiated back to the environment during the night) can have more importance.
- In conclusion, generally 2 systems can be made depending on what we intend to do with the stored heat, and what the climatic conditions are (the two are naturally related). The two solutions can also be mixed, and in case of extreme climatic conditions this actually might be even necessary.
- In the first solution the structure only stores the heat until the night, in this case the amount of fluid inbuilt is sufficient to store the heat gain of one day, which is given/ventilated/radiated back to the environment during the night. In case of the second solution the heat is utilized in any way (like for hot water supply or stored for later use for heating).
- In addition to architectural-aesthetic limitations for the maximum size of space and air volume incorporated in the fluid circuit of containers, there can also be limits of structural and mechanical engineering to define where and when to set the limits of an actual panel circuit dimensions.
- With respect to the structure, the limit can be the weight of the fluid and its hydrostatic pressure. Above 3-4 m considerable weight can appear, which can naturally be solved but is unlikely to be economic.
- This also goes for mechanical engineering, because of floor heating theoretically the space can be built with any indoor height without compromising thermal comfort, but because of cooling low ceiling height is preferable, the mentioned 3-4 m is ideal. In this case larger sizes can also be applicable, but not necessary economic.
- The main essence of the invention is that wall elements (panels) can be made where—unlike in case of conventional and known panel systems—the main weight of the structure is given by some kind of fluid, while the solid constituents in conventional terms play the role of a container only, and mainly any other task (insulation, heat storage, noise resistance, etc.) is given by union of fluid and air/gas.
- The importance of such a building method lies not only at its cost-efficiency, but it also gives the possibility of a completely new model in building physics, which solves heating-cooling-ventilation tasks much more effectively. It also decreases the amount of demolition waste considerably. The utilized materials are ideally reuseable/recyclable to a great extent, or can enter the natural material circulation without pollution.
- The system according to the invention consists of many elements, among them there is a container for perimeter and internal use, also others applicable for the ceiling, and the roof or the floor, therefore in ideal case using the system a complete building can be constructed. The system can be used for various scales of construction from a detached house or secondary buildings to apartment housings, from high-rise buildings and industrial buildings to halls. Naturally the system can be combined, so it can be united with other technologies when only a part of the building is built by the system, therefore it is applicable for building renovation as well.
- Interior use only is also possible if the goal is to emphasize the new kind of aesthetics of the system, or to benefit from its energetic and mechanical engineering advantages.
- Finally, mechanical engineering system renovation is also possible if the system is built in an existing new building because of its advantages in mechanical engineering.
- The system can be created in solid and also in transparent/translucent versions, therefore it shows similarity with known glass curtain wall and panel technology at the same time:
- Compared to transparent glass curtain walls the most important difference is the material use, namely the presence of a relatively large amount of fluid. Because of that the system works in a completely different way from glass wall technologies, it not only utilizes the thermal mass of the fluid but also its fire-resistance capacity increases considerably. With its thermal mass overheating during the summer and sudden cooling in winter can be avoided, and the panel is applicable for wall heating/cooling, which is not possible in case of glass curtain walls.
- Compared to solid panels the material use is also crucial, the main weight, heating/cooling and also air-conditioning can be given by the fluid, which is also mainly responsible for the heat resistance capacity. This is not conventional for the known systems today, because the solid materials have importance even if heating appears in the panels, because solid materials refer for acoustics, thermal insulation or fire protection demands.
- It is important to emphasize that the system works in completely different way in terms of building physics from the examples known or mentioned above. This is because the fluid masses are not separated in the system but connected continuously: from the perimeter the container fluid can flow towards the floor or the ceiling. This is important because this way heat can flow from warmed up parts to the colder areas. This is one of the most important novelties of the structure, which is not known in other buildings, and has a serious effect on energy savings and indoor thermal comfort.
- All the elements of the invention system are prefabricated, during construction it is only the assembly that takes place on the building site. Fluid enters in the last step, in the factory there is only an infill check to make sure of the water proof capacity. Containers can be made in different size, the sizes depend on the actual architectural plan as well, but if possible, ideally it is necessary to design in module sizes, otherwise fabrication with special sizes will be required.
- Containers for the perimeter wall and the roof can be attached with insulation already in the factory, parallel sheets with closed air layers between (they can be air layers or vacuum cells, or occasionally gas cells, separated with transparent/translucent plastic or glass sheets to allow solar gain to reach the fluid volume), and with an external finish (ideally made of a glass or plastic layer).
- During fabrication the containers can also be made with final interior finish (ideally not a heat insulating material like wallpaper, ceramic or stone tiles). The smaller elements have a role in heating and cooling while the bigger ones take part in conditioning due to their heat storing capacity. The interior containers have this thermal volume only.
- Containers belonging to the floor have to be made with an inbuilt structural support and a final floor finish.
- After fabrication, transportation and site assembly takes place. If possible, the containers are joined with connections everywhere which later allows disassembly, this can be made with bolted and screw joints. The joint elements in the fluid flow are built in a similar way to conventional pipe joining.
- The invention is applicable for building glass curtain walls, in this case even its appearance is a novelty. Its advantages in energetics and fire resistance can be important.
- In case of existing buildings the system can also appear as a transparent and solid wall, it can be independent or an attached layer joined to the existing structure. In both cases it can greatly improve the thermal insulation of the building and can decrease the energy consumption.
- The waste production of the system is minimal, because both fluid and solid constituents are re-useable, therefore it is ideal for temporary buildings or pavilions.
- One of the most important advantages of the system is that by connecting the fluid volumes the thermal storage capacities will be united, because the system with fluid flow balances temperature differences in the whole mass. This way summer overheating and winter cooling can be avoided, which is typical for transparent structures.
- The system needs a lower temperature for heating/cooling unlike in case of conventional systems, so combined with renewable energy sources (like geothermal or solar heat) considerable energy savings can be achieved, even compared to current systems.
- In case it is made from a transparent material (like glass or plastic), the insulation ideally made of air/gas cells results in an economic transparent structure, which together with the fluid volume increases fire-resistance capacity compared to conventional glass structures.
- The material use of the system is cost-effective, and in case the solid panels are also made from re-usable/recyclable materials (like plastic/aluminum/glass/copper for shell), the system becomes completely re-usable/recyclable. This causes energy savings, because the air layers and the fluid volume gives the main weight, which can be recycled/reused with a modest energy investment.
- The system according to the invention has a special application possibility: it can work as a fire-boarder structure as well. The separation between spaces made by the container is an internal wall structure built with double fluid circuits. The material of the container is not necessarily fire resistant, but with fluid infill its fire resistance increases significantly. The fire resistance can be helped with the fluid flow: the heat load caused by the fire starts the flow, which transports the heat to the colder areas, while the warmed up fluid will be replaced by a colder one. This way the fluid flow increases fire resistance. This increase can only be assured together with the fluid circuit, that is why the system is built ideally with two circuits (one fluid circuit for each side), this way the fire load can reach the structure from any side, it can flow to the other one.
- 1. A heat energy system which can be used to heat or maintain thermal balance in the interiors of buildings or buildings parts, characterized in that the system consists of closed containers (15) built near and/or instead of surrounding surfaces of a room: of upper and lower surrounding surfaces (13 and 14) to at least certain extent, and at least two parts of opposite side surrounding surfaces (9-12); and the neighboring containers (15) are connected, and all containers define one closed fluid volume which is filled with heat transporting fluid.
- 2. The heat energy system according to
claim 1 characterized in that the closed fluid circuit made by containers (15) is connected by heat exchangers (55) to conventional energy system (58) of a building and/or additional closed circuit fluid volume made by containers (15) and/or with a heat storage unit (56). - 3. The heat energy system according to
claim - 4. The heat energy system according to any of
claims 1 to 3 characterized in that the heat exchanger counter flow/serpentine piping (66) is sunk in the side (16) of the container (15). - 5. The heat energy system according to
claim - 6. The heat energy system according to
claim - 7. The heat energy system according to
claim - 8. The heat energy system according to any of
claims 1 to 7 characterized in that the container (15) built at the building's façade has a thermal insulation (41) in front of it and between the container (15) and the thermal insulation (41) there is a thin air cavity (44) which is connected to the exterior through ventilation holes (42) made at the bottom and at the top of the container (15). - 9. The heat energy system according to any of
claims 1 to 8 characterized in that the ventilation holes (42) are connected to an airflow producing appliance (43). - 10. The heat energy system according to any of
claims 1 to 7 characterized in that the container (15) placed vertically and ideally at the building facade has vertical ventilation pipes (46) inbuilt which are connected to the two sides of the container (15) through one conduct (47) at both near to its lower and upper end. - 11. The heat energy system according to any of
claims 1 to 7 characterized in that in the container (15) the vertical pipes (46) are connected with airflow producing appliance (43). - 12. The heat energy system according to any of
claims 1 to 7 characterized in that the vertical container (15) placed in front of perimeter wall (3) is connected to the lower and upper horizontal containers (15) through pipes (40) inside openings in the perimeter wall (3). - 13. The heat energy system according to any of
claims 1 to 12 characterized in that the heat exchangers (55) which connect two neighboring closed fluid circuits made by panels (15) are made at the vertical containers (15) next to the two sides of the separating wall (34) between the two closed fluid circuits and the heat exchangers (55) placed at the two sides of the separating wall (34) are connected by pipes (70) penetrating the wall. - 14. The heat energy system according to any of
claims 1 to 12 characterized in that the separating wall between two neighboring closed fluid circuits made by containers (15) is a heat exchanger (55) which makes heat transfer connection between the two circuits as a container (15) which has another container (68) next to it and parallel to its sides (16) or it is divided into two by a separating plate (69) which is parallel to the side (16) and one container (15) is connected to the other containers (15) of the closed circuit, the other container (68) or other part of container is connected to the other closed circuit containers (15). - 15. The heat energy system according to any of
claims 1 to 14 characterized in that the closed fluid circuit made by containers (15) includes several neighboring rooms of the building and the vertical containers (15) are only at the two end perimeter of the rooms and the lower and upper containers (15) run through all the rooms and the separating walls (34) are built between the lower and upper horizontal containers (15). -
- 1 building
- 2 room
- 3 perimeter wall
- 4 wall
- 5 wall
- 6 wall
- 7 floor
- 8 slab
- 9 surrounding surface
- 10 surrounding surface
- 11 surrounding surface
- 12 surrounding surface
- 13 surrounding surface
- 14 surrounding surface
- 15 container
- 16 side
- 17 edge
- 18 finish cover
- 19 overlay walkable finish
- 20 joint element
- 21 joint elbow fitting
- 21A joint elbow fitting (lower)
- 21F joint elbow fitting (upper)
- 22 joint valve
- 23 check valve
- 24 air lock
- 25 structural frame
- 26 spacers
- 27 perforations
- 28 load-bearing frame
- 29 bracing frame
- 30 spacers
- 31 spacers
- 32 load-bearing frame
- 33 roof
- 34 separating wall
- 35 intensive heat producing appliance
- 36 load-bearing structure
- 37 opening
- 38 structural infill
- 39 pipe
- 40 pipe
- 41 thermal insulation
- 42 ventilation hole
- 43 airflow producing appliance
- 44 cavity
- 45 column grid
- 46 ventilation pipe
- 47 conduct
- 48 heat insulation sheet
- 49 cavity
- 50 column
- 51 beam
- 52 building
- 53 roof
- 54 skylight
- 55 heat exchanger
- 56 heat storage unit
- 57 valve
- 58 conventional energy system
- 59 furnace
- 60 solar panel
- 61 heat storage unit
- 62 geothermal heat pump
- 63 cooling appliance
- 64 radiator
- 65 hot water supply unit
- 66 counter flow/serpentine piping
- 67 channel
- 68 container
- 69 dividing plate
- 70 pipe
- 101 water circuits
- 102 heat exchanger
- 103 heat storage
- 104 sustainable energy saving heat sources
- 105 additional heat sources
- 106 solar panels
- 107 conventional radiators
- 108 conventional cooling
- 109 electric power supply
- 110 central control unit
Claims (23)
1-15. (canceled)
16. An apparatus for heating or cooling of one or more inner spaces of a building comprising
at least one heat-transfer circuit associated with a structural surface of said at least one inner space of the building and containing a fluid for heating or cooling said structural surface
said at least one heat-transfer circuit is built as to allow a circulation of said fluid for effecting a heat exchange between the fluid and the inner space directly or via said structural surface
characterized in that
said at least one heat-transfer circuit comprising essentially flat, panel-like containers
said containers are associated with respective horizontal lower and upper structural surfaces and at least two opposing vertical structural surfaces of said one or more inner spaces of the building
wherein the adjacent containers are interconnected via their respective edges forming a closed fluid path and providing an unhindered circulation of said fluid for heating or cooling.
17. The heat energy system according to claim 16 characterized in that the closed fluid circuit made by containers (15) is connected by heat exchangers (55) to conventional energy system (58) of a building and/or additional closed circuit fluid volume made by containers (15) and/or with a heat storage unit (56).
18. The heat energy system according to claim 17 characterized in that the heat exchanger (55) is made by a counter flow/serpentine piping (66) placed next to the side (16) of the container (15).
19. The heat energy system according to claim 18 characterized in that the heat exchanger counter flow/serpentine piping (66) is sunk in the side (16) of the container (15).
20. The heat energy system according to claim 18 characterized in that the heat exchanger counter flow/serpentine piping (66) is built inside the container (15).
21. The heat energy system according to claim 18 characterized in that the heat exchanger (55) is made by a second container (68) built next to the container (15) and parallel to its side (16).
22. The heat energy system according to claim 16 characterized in that the container (15) is divided into two parts by a separating plate (69) which is parallel to the side (16) of the container (15) and one part is connected to the fluid circuit and other is the space for the heat exchanger (55).
23. The heat energy system according to claim 16 characterized in that the container (15) built at the building's façade has a thermal insulation (41) in front of it and between the container (15) and the thermal insulation (41) there is a thin air cavity (44) which is connected to the exterior through ventilation holes (42) made at the bottom and at the top of the container (15).
24. The heat energy system according to claim 23 characterized in that the ventilation holes (42) are connected to an airflow producing appliance (43).
25. The heat energy system according to claim 16 characterized in that the container (15) placed vertically and ideally at the building facade has vertical ventilation pipes (46) inbuilt which are connected to the two sides of the container (15) through one conduct (47) at both near to its lower and upper end.
26. The heat energy system according to claim 25 characterized in that in the container (15) the vertical pipes (46) are connected with airflow producing appliance (43).
27. The heat energy system according to claim 16 characterized in that the vertical container (15) placed in front of perimeter wall (3) is connected to the lower and upper horizontal containers (15) through pipes (40) inside openings in the perimeter wall (3).
28. The heat energy system according to claim 18 characterized in that the heat exchangers (55) which connect two neighboring closed fluid circuits made by panels (15) are made at the vertical containers (15) next to the two sides of the separating wall (34) between the two closed fluid circuits and the heat exchangers (55) placed at the two sides of the separating wall (34) are connected by pipes (70) penetrating the wall.
29. The heat energy system according to claim 18 characterized in that the separating wall between two neighboring closed fluid circuits made by containers (15) is a heat exchanger (55) which makes heat transfer connection between the two circuits as a container (15) which has another container (68) next to it and parallel to its sides (16) or it is divided into two by a separating plate (69) which is parallel to the side (16) and one container (15) is connected to the other containers (15) of the closed circuit, the other container (68) or other part of container is connected to the other closed circuit containers (15).
30. The heat energy system according to claim 16 characterized in that the closed fluid circuit made by containers (15) includes several neighboring rooms of the building and the vertical containers (15) are only at the two end perimeter of the rooms and the lower and upper containers (15) run through all the rooms and the separating walls (34) are built between the lower and upper horizontal containers (15).
31. An apparatus for heating or cooling of one or more inner spaces of a building, comprising
at least one heat-transfer circuit forming structural surfaces of said at least one inner space of the building and containing a fluid for heating or cooling said inner space, wherein said at least one heat-transfer circuit comprising essentially flat, panel-like containers forming respective horizontal lower and upper structural surfaces and at least two opposing vertical structural surfaces of said one or more inner spaces of the building,
said at least one heat-transfer circuit is built as to allow a circulation of said fluid for effecting a direct heat exchange between the fluid and the inner space
wherein the adjacent containers are interconnected via their respective edges forming a closed fluid path and providing an unhindered circulation of said fluid for heating or cooling.
32. The heat energy system according to claim 31 characterized in that the closed fluid circuit made by containers (15) is connected by heat exchangers (55) to conventional energy system (58) of a building and/or additional closed circuit fluid volume made by containers (15) and/or with a heat storage unit (56).
33. The heat energy system according to claim 32 characterized in that the heat exchanger (55) is made by a counter flow/serpentine piping (66) placed next to the side (16) of the container (15)
34. The heat energy system according to claim 33 characterized in that the heat exchanger counter flow/serpentine piping (66) is sunk in the side (16) of the container (15).
35. The heat energy system according to claim 33 characterized in that the heat exchanger counter flow/serpentine piping (66) is built inside the container (15).
36. The heat energy system according to claim 33 characterized in that the heat exchanger (55) is made by a second container (68) built next to the container (15) and parallel to its side (16).
37. The heat energy system according to claim 31 characterized in that the container (15) is divided into two parts by a separating plate (69) which is parallel to the side (16) of the container (15) and one part is connected to the fluid circuit and other is the space for the heat exchanger (55)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HUP1100156 | 2011-03-23 | ||
HU1100156A HU229826B1 (en) | 2011-03-23 | 2011-03-23 | Thermal energy system for heating a building and/or maintaining heat balance of building |
PCT/IB2012/051394 WO2012127451A2 (en) | 2011-03-23 | 2012-03-23 | A heat energy system for heating or maintaining thermal balance in the interiors of buildings or building parts |
Publications (1)
Publication Number | Publication Date |
---|---|
US20140014302A1 true US20140014302A1 (en) | 2014-01-16 |
Family
ID=89990222
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/006,769 Abandoned US20140014302A1 (en) | 2011-03-23 | 2012-03-23 | Heat energy system for heating or maintaining thermal balance in the interiors of buildings or building parts |
Country Status (7)
Country | Link |
---|---|
US (1) | US20140014302A1 (en) |
EP (1) | EP2689192B1 (en) |
JP (1) | JP6250530B2 (en) |
HR (1) | HRP20220210T1 (en) |
HU (1) | HU229826B1 (en) |
PL (1) | PL2689192T3 (en) |
WO (1) | WO2012127451A2 (en) |
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Also Published As
Publication number | Publication date |
---|---|
EP2689192A2 (en) | 2014-01-29 |
JP2014510255A (en) | 2014-04-24 |
EP2689192B1 (en) | 2021-12-01 |
WO2012127451A2 (en) | 2012-09-27 |
WO2012127451A3 (en) | 2013-11-07 |
HRP20220210T1 (en) | 2022-04-29 |
HU229826B1 (en) | 2014-09-29 |
HUP1100156A2 (en) | 2012-09-28 |
JP6250530B2 (en) | 2017-12-20 |
PL2689192T3 (en) | 2022-03-28 |
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