US20130228303A1 - System for Storing Thermal Energy, Heating Assembly Comprising Said System and Method of Manufacturing Said System - Google Patents

System for Storing Thermal Energy, Heating Assembly Comprising Said System and Method of Manufacturing Said System Download PDF

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Publication number
US20130228303A1
US20130228303A1 US13/823,000 US201113823000A US2013228303A1 US 20130228303 A1 US20130228303 A1 US 20130228303A1 US 201113823000 A US201113823000 A US 201113823000A US 2013228303 A1 US2013228303 A1 US 2013228303A1
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Prior art keywords
storage system
thermal energy
cavity
hose
building
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Abandoned
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US13/823,000
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English (en)
Inventor
Jan-Erik Eskilsby
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SVENSKT KLIMATNEUTRALT BOENDE AB
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SVENSKT KLIMATNEUTRALT BOENDE AB
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Assigned to AB SVENSKT KLIMATNEUTRALT BOENDE reassignment AB SVENSKT KLIMATNEUTRALT BOENDE NUNC PRO TUNC ASSIGNMENT (SEE DOCUMENT FOR DETAILS). Assignors: ESKILSBY, JAN-ERIK
Publication of US20130228303A1 publication Critical patent/US20130228303A1/en
Abandoned legal-status Critical Current

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Classifications

    • 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
    • F24D11/00—Central heating systems using heat accumulated in storage masses
    • F24D11/002—Central heating systems using heat accumulated in storage masses water heating system
    • 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
    • F24D11/00—Central heating systems using heat accumulated in storage masses
    • F24D11/02—Central heating systems using heat accumulated in storage masses using heat pumps
    • F24D11/0214—Central heating systems using heat accumulated in storage masses using heat pumps water heating system
    • F24D11/0221—Central heating systems using heat accumulated in storage masses using heat pumps water heating system combined with solar energy
    • 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
    • F28D17/00—Regenerative heat-exchange apparatus in which a stationary intermediate heat-transfer medium or body is contacted successively by each heat-exchange medium, e.g. using granular particles
    • 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
    • F28D20/0056—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using solid heat storage material
    • 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
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/70—Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
    • 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]
    • Y02B30/12—Hot water central heating systems using heat pumps
    • 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
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/4935—Heat exchanger or boiler making

Definitions

  • the present invention relates to a storage system for storing thermal energy for use in heating a building, said system comprising
  • thermal energy is produced by the use of solar panels on a roof of the building and the energy is transmitted to heating devices such as radiators, underfloor heating or a ventilation system to provide a suitable indoor climate.
  • heating devices such as radiators, underfloor heating or a ventilation system to provide a suitable indoor climate.
  • substantially more thermal energy than required can however be produced while during cold and overcast or snowy periods the solar panels produce very little energy that is not sufficient for heating the building.
  • the need for an efficient storing system for storing thermal energy and retrieving it when required is therefore apparent.
  • GB 1563076 discloses a storage system for storing thermal energy in a layer of a material, but the system is of a complicated construction with excessive insulation and requires energy dissipation within the layer for extracting energy, which is inefficient and potentially costly.
  • U.S. Pat. No. 4,321,962 discloses a similar storage system but is only suitable for short time storage due to its limited dimension, and also has a risk of condensation forming on the hose transporting fluid, thus significantly reducing the capacity of the storage system.
  • none of the systems above is suitable for use with a heat pump or air conditioning system, which significantly reduces their efficiency in heating or cooling a building.
  • the object of the present invention is to eliminate or at least to minimize the problems mentioned above.
  • a storage system for storing thermal energy according to the appended claim 1 , wherein a cavity of the system comprises a stone dust material that is arranged to cover a hose for transporting a fluid.
  • thermal energy can be conveniently stored in the storage system and thanks to the properties of the stone dust material it can be retained inside the storage system without leaking into surrounding areas.
  • only the top surface of the cavity requires an insulating layer to prevent a leakage of thermal energy from the storage system.
  • the heat retaining properties of the storage system keep the thermal energy safely inside the system without the need for a separate insulating layer.
  • said at least one hose is placed in an essentially two-dimensional spiral pattern in said cavity.
  • said system comprises at least two hoses, at least one of which is a storage hose that is arranged to transport thermal energy into the system and at least one other being a retrieval hose that is arranged to transport thermal energy from the system.
  • thermal energy can be loaded into the storage system at the same time as energy is also retrieved, making it possible to use the energy for heating a building without requiring interruption for storage.
  • Dimensions of the hoses can also be adapted to what is beneficial for storing and retrieval, respectively.
  • said at least two hoses ( 71 , 72 ) are placed at essentially the same distance from the top surface ( 14 ) of the cavity ( 11 ). Thereby, retrieval of thermal energy can be performed efficiently since the retrieval hose is located centrally in the storage system near the storage hose.
  • a heating assembly for a building comprising a storage system according to the invention is also provided. Thereby, a complete system with energy production, storage, retrieval and use can be provided, keeping consumption of external energy from a grid, for instance, to a minimum.
  • FIG. 1 shows a schematic view of a heating assembly for a building, comprising a storage system for storing thermal energy according to a preferred embodiment of the present invention
  • FIG. 2 shows a schematic view from the side of the storage system of FIG. 1 ;
  • FIG. 3 shows a schematic view from above of a preferred placement of hoses in the storage system of FIG. 2 ;
  • FIG. 4 shows a hemispherical shape of a storage unit created inside the storage system of FIG. 2 .
  • a heating assembly 2 for use in heating a building or similar structure can be seen.
  • thermal energy 3 such as solar panels 3
  • thermal energy can be captured and entered into a water storage unit 21 for short term storage or for direct use in a tap 5 for extraction of hot water for the benefit of a person present in the building.
  • Means for distributing thermal energy 22 such as a heat pump 22 is connected to the water storage unit 21 and also to a storage system 1 , preferably placed in the ground underneath the building. Further, the heat pump 22 is connected to a heating system 4 for heating the building through radiators, underfloor heating or ventilation, for instance.
  • FIG. 2 shows a view from the side of the storage system 1 for storing thermal energy according to a preferred embodiment of the invention, where said storage system 1 is located in the ground beneath a building 6 .
  • the storage system 1 comprises a cavity 11 with a bottom surface 12 , side surfaces 13 and top surface 14 , and the top surface 14 is covered by an insulating layer 15 .
  • In the cavity 11 at least one hose 7 connected to the heating assembly 2 described above is placed, with a heat storage conduit 73 that allows for thermal energy to be inserted into the storage system 1 and a retrieval conduit 74 that allows for said thermal energy to be removed and used in the heating assembly 2 .
  • a stone dust material is placed and fills essentially all available space within the cavity 11 so that the hose 7 is embedded.
  • a plurality of hoses 7 are used with the invention, so that a separate storing hose 71 is used for storing thermal energy and another hose, a retrieving hose 72 , is used for retrieving said thermal energy.
  • the storing hose 71 is in this embodiment connected to the heat storage conduit 73 and the retrieving hose 72 to the retrieval conduit 74 .
  • FIG. 3 shows a view from above of a preferred placement of the hoses 71 , 72 , where a double spiral pattern is created.
  • the conduits 73 , 74 are placed in a centre of the spiral in this preferred embodiment.
  • a method of manufacturing the storage system 1 will now be described according to a preferred embodiment of the invention.
  • a cavity 11 is created in the ground in a location where a building 6 is later to be built, or in the vicinity of an existing building.
  • Said cavity 11 is in a preferred embodiment at least about 2 m deep and covers approximately the same area as the building 6 is intended to. If bedrock is encountered at a suitable depth, it can constitute a bottom surface 12 and can thereby provide an additional thermal storage volume, thanks to the good heat storage properties of bedrock. It also prevents ground water from seeping into the storage system 1 . If no bedrock is encountered, a bottom surface 12 is created from any materials encountered while making the cavity 11 , such as earth or sand. Side surfaces 13 are also created, essentially by digging the cavity 11 sharply downwards to that a wall is created from the earth in the vicinity of the cavity 11 .
  • a stone dust material is placed into the cavity 11 to create a first stone dust layer of a depth of at least about 0 , 5 m.
  • hoses 71 , 72 are placed in a third step in the spiral pattern described above and shown by FIG. 3 , with the conduits 73 , 74 being attached to the hoses 71 and 72 , respectively, and extending vertically upwards towards.
  • the hoses 71 , 72 can be fixated by a metal net to keep them in a horizontal plane without the risk for vertical displacements that would cause bends in the hoses 71 , 72 and increase a risk for wear and tear.
  • a second stone dust layer is placed in a fourth step to fill any space left in the cavity 11 , i.e. to a depth of 1 , 5 m of the second stone dust layer, to arrive at ground level.
  • a top surface 14 of the cavity is created and a third layer 16 of crushed rock and an insulation layer such as 250-400 mm of Styrofoam is placed above the third layer in a fifth step.
  • the building 6 can be built on top of the insulation layer 15 .
  • the conduits 73 , 74 are allowed to protrude through all layers of material placed above the hoses 71 , 72 and into the building 6 to be connected to the heating assembly 2 . Thanks to a small particle size of the stone dust, the hoses 71 , 72 are held securely without movement in relation to the storage system 1 and thus wear and tear to the hoses 71 , 72 can be kept at a minimum.
  • the thermal energy stored in the stone dust can also be kept securely and stably with a very low risk for leakage to the surrounding earth. Even if movements should occur in the ground around the storage system 1 , such as vibrations from heavy vehicles passing nearby for instance, the stone dust will prevent any such vibrations from causing damage to the storage system 1 .
  • the stone dust material used can be created from particles left over when crushing rock and stone for other purposes, such as road construction or gravel preparation, and can be an essentially dry material with particles having a diameter of 0-3 mm.
  • the stone dust material has good heat retaining properties and will to a high degree prevent a leakage of thermal energy. Thanks to this very beneficial property, essentially no insulation is needed along the bottom surface 12 and side surfaces 13 .
  • a storage unit of an essentially hemispherical shape is created in the stone dust material due to the energy spreading out in all directions from the storing hose 71 , where said hemisphere has a circular area approximately parallel with the top surface 14 and a radius extending vertically from the top surface 14 to the bottom surface 12 , as shown by the area 17 with dashed lines in FIG. 4 .
  • the insulation layer 15 and third layer 16 thus provide an insulation upwards to keep most of the thermal energy stored in the storage system 1 safely inside the system 1 . Any leakage through the layers 15 , 16 will, however, seep up into the building 6 and serve to warm floors inside the building 6 to the benefit of its inhabitants. This will occur during periods of time when a large amount of energy is stored inside the storage system 1 , i.e. during warmer periods such as summer when a high amount of energy can be captured by the solar panels 3 .
  • insulation layer 15 and third layer 16 extend over a larger area than that of the top surface 14 of the cavity 11 , to prevent any leakage around the edges of the top surface 14 during cold periods, i.e. to prevent that a winter's cold seeps into the storage system to decrease storage capacity.
  • a distance of 1.5-2 m may be suitable for the preferred embodiment described here.
  • the storage hose 71 comprises a plurality of hoses 711 placed close together in the spiral pattern, preferably 4-8 hoses 711 , since this facilitates an efficient storage of the thermal energy.
  • Suitable dimensions for the storage hoses 711 may be 22-28 mm ⁇ 100 m.
  • a closed loop is created for the storage hoses 711 , where a pump (not shown) can be used to pump a fluid contained inside said hoses 711 , such as water with an anti-freeze agent, from the heating assembly 2 where the fluid can be heated by the energy captured by the solar panels 3 and down through the storage conduit 73 and outwards in the spiral pattern.
  • the fluid When confronted with the storage system 1 , the fluid will gradually cool while the area around the hoses 711 will be heated by thermal energy being transferred from the fluid and out into the stone dust material.
  • the area at the centre of the storage system 1 will have the highest temperature, with the periphery of the storage system 1 being cooler.
  • the retrieval hose 72 can be a plurality of hoses but is in this preferred embodiment only one hose 72 , with dimensions 40 mm ⁇ 400 m and containing a brine fluid.
  • a pump can be used for pumping this fluid along a closed loop as well but from the periphery of the spirals and towards the centre, where the brine fluid will gradually be heated and transported into the building 6 by the retrieval conduit 74 for use with the heat pump 22 .
  • the temperature inside the storage system 1 is kept relatively low, ranging in the interval 6-22° C. for a storage system 1 located underneath a building 6 . Thanks to this fact, a heating effect can be achieved even during cold winters as long as the sun is shining on the solar panels, since the fluid used for charging will only have to be warmed slightly to be able to transport thermal energy into the storage system 1 .
  • the stone dust material apart from preserving the thermal energy within the storage system 1 , also serves to prolong the life of the hoses 71 , 72 , 711 by providing a secure embedding with small particles that will prevent the wear and tear that would be caused by larger or pointed objects such as larger gravel, for instance.
  • the temperature inside the building 6 is kept higher than the temperature inside the storage system 1 , which is very beneficial in preventing condensation to form on the conduits 73 , 74 leading down into the storage system 1 .
  • the minimum suitable temperature for underfloor heating, for instance, is thus 22° C., ensuring that this temperature is higher than that inside the storage system 1 .
  • conduits 73 , 74 generally enter the building through a wall to reach the heat pump 22 rather than through a floor such as when the storage system 1 is placed directly below the building.
  • solar panels 3 are provided, preferably placed on a roof at a suitable angle to catch as much sun as possible.
  • a slant of 20-40° may be suitable in a Nordic climate.
  • the energy captured by the solar panels 3 is transferred to the water storage unit 21 and is used to heat an amount of water stored there.
  • a suitable amount for a residential building can be 200-900 liters of water. Inhabitants of the house can use water from the water storage unit 21 for washing, showering or other regular water consuming activities.
  • the water in the hot water tank is kept at a suitable temperature, for instance in the range of 55-90° C., and the tank is preferably insulated in such a way that the hot water can be kept hot for several days if no additional energy is added, such as for instance on several subsequent overcast winter days. As long as the sun is shining, however, the thermal energy is used to heat the hot water until a preset temperature has been reached, and any excess energy is stored as is described below.
  • any excess energy produces by the solar panels 3 is transferred into the storage system 1 and kept underground to be used for heating the house when such a need arises.
  • the storage is effected by water heated by the solar panels 3 being led into the storage hose 71 of the storage system 1 along the storage conduit 73 , going down to a suitable depth in the storage system 1 and heat being transferred through a wall of the storage hose 71 into the stone dust material surrounding the hoses 71 , 72 . Thanks to the spiral pattern, the water inside the storage hose 71 will gradually cool off as it travels outwards in the spiral, keeping a majority of the thermal energy in the stone dust placed centrally underneath the building 6 .
  • the storage hose 71 constitutes a closed loop with an outer end of the spiral being led back up into the building 6 and into contact with energy produced by the solar panels 3 .
  • one or more retrieval hoses 72 are distributed in a similar spiral pattern as the storage hose 71 and on approximately the same depth. The flow is directed from a perimeter of the spiral towards the centre, where the retrieval conduit 74 is located. Thanks to this preferred placement, a fluid contained within the retrieval hoses 72 can be successively heated by the passage through the storage system 1 to arrive at a maximum temperature at the centre of the spirals.
  • the retrieval conduit 74 is connected to the heat pump 22 that serves to heat the building 6 through underfloor heating, radiators or the like, and also serves to heat the water in the water storage tank 21 , if needed.
  • the thermal energy captured by the solar panels 3 is continuously transferred to the storage system 1 for storage unless it is used for heating the hot water inside the water storage tank 21 , and at the same time thermal energy is continuously being retrieved by the heating assembly from the storage system 1 .
  • the process of storing energy and the process of retrieving said energy can be performed at the same time.
  • the heating assembly in a first step attempts to heat the hot water to the desired temperature. If this cannot be performed, for instance because not enough solar energy is available to the solar panels 3 , the storage system 1 can instead be used for heating water placed in a smaller tank placed in conjunction with the heat pump 22 and using that hot water for regular use in the building 6 .
  • the heat pump 22 is continuously operated to retrieve thermal energy from the storage system 1 unless the temperature inside the building 6 is higher than a preset maximum temperature that can be determined by a control system or manually by a person in the building 6 .
  • the operation of the storage system 1 and the heating assembly 2 can be controlled by a control unit (not shown) that strives to keep a preset indoor temperature in the building 6 and that controls the storage and retrieval of energy as well as the operation of the heat pump 22 , the solar panels 3 and the other components of the heating assembly 2 .
  • the control unit can also be two separate control units, one controlling the heat pump and maintaining a desired temperature inside the building 6 and the other controlling the storing of thermal energy into the storage system 1 , or can be another number of control units as deemed suitable.
  • thermal energy is used for heating a building 6 to a desired temperature. It would, however, be possible in a warmer climate to use the same storage system 1 and heating assembly 2 for cooling a building 6 to a desired temperature.
  • the heat pump 22 could then be used for operating an air conditioning assembly, and any excess heat produced by that process could be retrieved for further storage by the storage system 1 .
  • a cooling system can be used for cooling the storage system 1 to about 15° C. during a day period and for cooling the building 6 using a battery operated circulation pump with the storage system 1 during a night period.
  • This is a very suitable embodiment for hot climates, especially desert climates, where a cooling of the building 6 during both day and night can be required for a portion of the year.
  • the system is used for cooling the building as well as cooling the storage system 1 .
  • a battery driven system with a circulation pump can cool the building using the storage system 1 and thereby achieve a reliable cooling effect inside the building 6 even where electrical energy is not delivered through the power grid during the night.
  • This aspect of the invention may also be the subject of a separate patent application based on the storage system 1 for use in cooling a building.
  • heating and air conditioning could also be effected by the present invention, for instance by using the thermal energy from the storage system to heat the building 6 during a cold season and cooling the air inside the building during a hot season.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Building Environments (AREA)
  • Central Heating Systems (AREA)
US13/823,000 2010-09-20 2011-09-07 System for Storing Thermal Energy, Heating Assembly Comprising Said System and Method of Manufacturing Said System Abandoned US20130228303A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE1050975-0 2010-09-20
SE1050975 2010-09-20
PCT/SE2011/051079 WO2012039662A1 (fr) 2010-09-20 2011-09-07 Système pour stocker de l'énergie thermique, ensemble de chauffage comprenant ledit système et procédé de fabrication dudit système

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US20130228303A1 true US20130228303A1 (en) 2013-09-05

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US (1) US20130228303A1 (fr)
EP (1) EP2619509B1 (fr)
CN (1) CN103238029A (fr)
CA (1) CA2810152A1 (fr)
DK (1) DK2619509T3 (fr)
PL (1) PL2619509T3 (fr)
WO (1) WO2012039662A1 (fr)

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US20150083113A1 (en) * 2011-05-12 2015-03-26 Lars Ortoft Construction Compromising A Building And An Installation With Solar Heat Storage
US20150308751A1 (en) * 2013-02-18 2015-10-29 Byunggyun Kim Metal heat storage apparatus
US20180112930A1 (en) * 2015-03-30 2018-04-26 Naturspeicher Gmbh Energy Store, Power Plant having an Energy Store, and Method for Operating the Energy Store

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BE1021387B1 (nl) * 2012-10-05 2015-11-12 Building Energy Nv Ecologisch verwarmingssysteem
CN108413793A (zh) * 2018-02-05 2018-08-17 湖南湘讯企业管理有限公司 一种多层次节能型余热回收装置
DE102022116248B3 (de) * 2022-06-29 2023-06-29 Kohl Medical Ag Zweiverbindungssystem für wärmepumpen und erdwärmekollektoren

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RU2364794C1 (ru) * 2008-03-11 2009-08-20 Анатолий Дмитриевич Киосов Система и способ централизованного теплоснабжения
DE102008041715A1 (de) * 2008-08-29 2010-03-04 Lüumel GmbH Heiz- und Warmwassersystem für Gebäude
CA2738977C (fr) * 2008-10-06 2017-03-28 Ronald Theaker Systeme de chauffage

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US20150083113A1 (en) * 2011-05-12 2015-03-26 Lars Ortoft Construction Compromising A Building And An Installation With Solar Heat Storage
US20150308751A1 (en) * 2013-02-18 2015-10-29 Byunggyun Kim Metal heat storage apparatus
US9766018B2 (en) * 2013-02-18 2017-09-19 Byunggyun Kim Metal heat storage apparatus
US20180112930A1 (en) * 2015-03-30 2018-04-26 Naturspeicher Gmbh Energy Store, Power Plant having an Energy Store, and Method for Operating the Energy Store

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EP2619509B1 (fr) 2019-10-30
PL2619509T3 (pl) 2020-08-24
EP2619509A4 (fr) 2015-12-30
DK2619509T3 (da) 2020-02-03
EP2619509A1 (fr) 2013-07-31
WO2012039662A1 (fr) 2012-03-29
CN103238029A (zh) 2013-08-07

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