US20180112930A1 - Energy Store, Power Plant having an Energy Store, and Method for Operating the Energy Store - Google Patents

Energy Store, Power Plant having an Energy Store, and Method for Operating the Energy Store Download PDF

Info

Publication number
US20180112930A1
US20180112930A1 US15/562,974 US201615562974A US2018112930A1 US 20180112930 A1 US20180112930 A1 US 20180112930A1 US 201615562974 A US201615562974 A US 201615562974A US 2018112930 A1 US2018112930 A1 US 2018112930A1
Authority
US
United States
Prior art keywords
heat exchanger
water
lower basin
storage device
energy storage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US15/562,974
Other languages
English (en)
Inventor
Alexander Schechner
Luis Deroi
Gerhard Ihle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Naturspeicher GmbH
Original Assignee
Naturspeicher GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Naturspeicher GmbH filed Critical Naturspeicher GmbH
Assigned to NATURSPEICHER GMBH reassignment NATURSPEICHER GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: Deroi, Luis, IHLE, GERHARD, SCHECHNER, ALEXANDER
Publication of US20180112930A1 publication Critical patent/US20180112930A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • 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
    • F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
    • F28D20/021—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat the latent heat storage material and the heat-exchanging means being enclosed in one container
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
    • F01K3/00—Plants characterised by the use of steam or heat accumulators, or intermediate steam heaters, therein
    • F01K3/08—Use of accumulators and the plant being specially adapted for a specific use
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/10—Combinations of wind motors with apparatus storing energy
    • F03D9/13—Combinations of wind motors with apparatus storing energy storing gravitational potential energy
    • F03D9/14—Combinations of wind motors with apparatus storing energy storing gravitational potential energy using liquids
    • 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
    • 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
    • F28D20/0043—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 specially adapted for long-term heat storage; Underground tanks; Floating reservoirs; Pools; Ponds
    • 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
    • F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/42—Storage of energy
    • F05B2260/422—Storage of energy in the form of potential energy, e.g. pressurized or pumped fluid
    • 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
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • 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
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/14—Combined heat and power generation [CHP]
    • 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
    • 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
    • Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids

Definitions

  • the invention relates to an energy storage device, a power plant with such an energy storage device, and a method for operating the same.
  • renewable energy sources are known from the general state of the art, including, for example, the use of solar radiation, wind power, or biomass.
  • the first two sources mentioned in particular are associated with the known drawback that their use depends on external factors, such as available solar radiation or available wind, but such factors are not correlated with actual energy consumption.
  • rapidly activatable power plants which are typically based on fossil fuels, are kept available, which power plants are able to compensate for the emerging supply gap in the short term, and, on the other hand, efforts are being undertaken to create efficient energy storage that are able to temporarily store energy from renewable sources electrically or mechanically and, if necessary, are able to be introduced into a power grid.
  • DE 2 926 610 A1 discloses a storage device for providing the input heat energy at a low temperature level for heat pump systems, which absorb this energy and release it again at a higher temperature level, whereas a water basin is designed in such a manner that, through wall sloping and corresponding surface area and reinforcement, its water content is able to freeze without damaging the basin, and that a heat exchanger system located on the basin floor or embedded into the basin floor enables the cooling and freezing heat of such basin to be supplied to the cold side of a heat pump.
  • DE 10 2010 037 474 A1 discloses a storage tank device for an energy storage device system, comprising at least one storage tank and at least one first heat exchanger medium, whereas the storage tank features a housing containing a storage medium and at least one first heat exchanger arrangement in contact with the storage medium, whereas the at least first heat exchanger arrangement features a first heat transfer medium.
  • the housing Within the housing, at least one second heat exchanger arrangement is arranged with a second heat exchanger medium, whereas the second heat exchanger medium is essentially gaseous.
  • an energy storage device which features a heat exchanger that is arranged in a floating manner on a lower basin formed as a lake and preferably able to be filled with water via a first supply line, whereas, via a second supply line, water can be supplied from the lower basin and, via a third supply line, coolant of a heat pump penetrating the heat exchanger can be supplied in separate circuits, such that energy can be extracted from the lower basin while freezing of the water of the lower basin or in the form of sensible heat from the water of the lower basin, and can be passed on to a consumer for heat dissipation and/or for cold dissipation.
  • the energy storage device is provided on the surface of a lake, which can be designed, for example, as a lower basin of a pump storage unit.
  • the lower basin is provided with an additional possibility of energy extraction, which is utilized in the form of latent heat.
  • the latent heat can be utilized and re-dissipated via the heat exchanger, for example for heating buildings at a consumer's premises.
  • the sensible heat present in the water of the lake can also be extracted from the lower basin.
  • the lake can preferably be filled with water without a natural inlet and via a first supply, such that solar radiation causes an increase in temperature of the water in the lake.
  • the energy is extracted by means of a heat pump, which is preferably supplied with electrical energy from an energy source that is renewable or carbon dioxide-neutral.
  • the heat pump can also be fed by a generator of the pump storage unit.
  • Thawing typically occurs based on the prevailing environmental conditions, such as solar radiation or temperature of the atmosphere.
  • it may also be provided that thawing of the ice is effected through the utilization of the cold in the ice, for example for air conditioning during the spring or summer.
  • the actual heat accumulator is the lower basin. With this, the formation of ice is a possibility for the utilization of the latent heat arising from the heat accumulator formed as a lower basin.
  • the energy storage device features a wide range of possible applications and operating modes, such that, depending on the ambient temperature or the solar radiation that influences the energy that can be extracted as sensible heat arising from the lower basin, and depending on the energy demand according to the season or projected for a consumer, the energy storage device is either filled or emptied, whereas whether sensible or latent heat is to be supplied to the consumer via the heat pump can be selected at the time of extraction. By choosing the option when extracting energy, an adjustment to the location and demand conditions can be created.
  • the operation of the energy storage device in the seasonal cycle preferably takes place in such a manner that, during the energy input by solar radiation (that is, in northern latitudes, typically from spring to autumn), a temperature spread takes place.
  • a temperature spread takes place.
  • the temperature spread relative to the ambient temperature is approximately in the range from 5° C. to 10° C.
  • a cooling phase of the water in the lower basin to a temperature of approximately 0.5° C. commences, in order to enable an ice-free transition phase at the end of autumn (i.e., when the heating by solar radiation is abating).
  • the energy is extracted through freezing on the surface of the lower basin.
  • the concept described above can be used for the supply of households with heat energy through the supply of district heating, whereas approximately 40,000 m 3 of ice must be provided for approximately 2000 to 4000 households, such that a natural lake would be adequately dimensioned as a lower basin.
  • the heat exchanger is formed by pipes through which coolant flows.
  • the provision of the heat exchanger as pipes has the advantage that, at the beginning of the formation of ice, the position of the crystallization point can be selected through the positioning of the cold water inlet. Accordingly, the initial freezing can be adjusted to the mechanical requirements of the heat exchanger in order to, for example, avoid or greatly reduce mechanical stresses compared to uncontrolled freezing.
  • the pipes are arranged in the form of a ring spiral.
  • a ring spiral can be adjusted in shape and size to the shore line of the lower basin, which is formed as a natural lake, in order to make good use of the surface of the lower basin.
  • the ring spiral may be bounded by a circular outer line.
  • elliptical or rectangular outer lines are also possible.
  • radially arranged struts support the pipes arranged in the form of the ring spiral.
  • the heat exchanger is surrounded by an outer wall that surrounds the heat exchanger along its outer circumference in the form of a vertical partition, such that a ring-shaped body is formed.
  • the ring-shaped body has a diameter of approximately 50 m to 200 m, preferably approximately 100 m.
  • the dimensioning according to this embodiment enables the formation of several tens of thousands of cubic meters of ice, which would enable several thousand households to be supplied.
  • the energy stored in this volume of ice corresponds to a heat output of some GWh.
  • the exact dimensioning can be selected or adjusted accordingly, taking into account the boundary conditions such as area needs, energy needs and available electrical power for operating the heat pump.
  • the heat exchanger can be connected by means of an anchoring to a base of the lower basin.
  • an attachment option is provided along a post-like anchoring that is fixed to the base of the lower basin, whereas the heat exchanger is axially displaceable on the anchoring as a function of the water level in the lower basin.
  • the heat exchanger can be held at the base of the lower basin or in the area of the embankment through suitably prestressed tensioning cables, which are preferably attached to the aforementioned spokes or the outer wall.
  • the prestressing of the tensioning cables or the position of the heat exchanger on the post-like anchoring can also be adjustable by means of an external control.
  • an ice layer forms in the heat exchanger radially from the inside to the outside, and, if applicable, subsequently increases in thickness.
  • the stability of the floating heat exchanger is increased through the radial formation of the ice layer from the inside to the outside, such that no or little complicated additional measures have to be taken for the balancing of the heat exchanger during the freezing on the lower basin.
  • the cooling medium is supplied from the heat pump into the middle of the heat exchanger. Accordingly, the radial formation of the ice layer initially takes place, in order to obtain a closed ice layer. Subsequently, the thickness of the ice layer above and below the pipes of the heat exchanger is increased. With this, forming the ice layer approximately up to 1 m on each side of the pipes is provided.
  • the ice layer serves, on the one hand, to provide a cold accumulator for cooling in the summer, in order to be able to carry out cold extraction.
  • the formation of ice is also an option for extracting heat from the water of the lower basin.
  • the heat exchanger features an upper inlet, through which, during freezing, water can be introduced into the heat exchanger on the resulting ice layer, such that the ice layer is located below the water surface of the lower basin.
  • This approach makes it possible to, when the ice layer is present, provide an additional load, such that the heat exchanger sinks in the lower basin, and the ice layer comes to lie below the water surface of the lower basin. This ensures that, despite an ice layer, even when exposed to sunlight the water temperature in the lower basin is not kept unnecessarily low, but can in fact increase, since the solar radiation is absorbed in the area of the water surface as the temperature of the water near the surface increases, such that only a small energy input is introduced into the ice layer.
  • an insulating layer is arranged between the ice layer and the cold water that is able to be supplied.
  • an air cushion can be formed below the ice layer and on the side of the ice layer turned away from the water surface.
  • a multiple number of superimposed ice layers can be formed independently of one another.
  • the uppermost layer may constitute a type of “rapid freezing.” That is, a thin layer of ice can be rapidly formed in the uppermost layer. This can be formed approximately up to 10 cm on each side of the cooling pipe. Such layer can cover power peaks, but also be used to isolate the lower basin from the atmosphere.
  • rapid freezing is that, for example, an ice layer is formed overnight in order to isolate the lower basin from the atmosphere, while water is pumped over the ice during the day in order to absorb solar radiation and melt the thin ice layer.
  • the rapid freezing is to serve as a solar collector and, if the energy balance is negative (for example, a cold night), the rapid freezing is to serve as insulation.
  • the rapid freezing is to serve as insulation.
  • directly adjacent ice layers are separated by insulating layers.
  • a power plant comprising a lower basin of a pump storage power plant that can be filled with water is specified, whereas the lower basin is connected to a pump via a first supply line and to an upper reservoir via a supply line that passes through the pump storage power plant and can be connected to the first supply line, whereas the lower basin is provided with an energy storage device described above.
  • the upper reservoir is part of a wind power plant
  • the pump can be driven by means of electrical energy generated by the wind power plant, in order to pump water from the lower basin into the upper reservoir.
  • the alternating power of the wind power plant due to changing wind conditions can be compensated to a certain degree by the pump storage plant, such that the pump storage plant can deliver power during periods of low wind and can store energy in the case of excess power of the wind power plant.
  • the heat pump is controlled as a function of ambient temperature, solar radiation and water temperature, such that the ice layer is formed on the heat exchanger when no energy can be extracted from the water temperature of the lower basin.
  • the lowering of the ice layer through water load can additionally be carried out, in order to protect the ice layer from solar radiation.
  • the effect of solar radiation on the ice layer can be reduced.
  • the solar radiation can be absorbed by the water, since, for the most part, ice reflects the solar radiation.
  • the irradiated energy quantity in the lower basin increases considerably compared to a situation with an ice layer floating on it.
  • the energy storage device may feature a multi-layer structure, whereas the layer closest to the water surface is initially used to form an ice layer, which is preferably thin.
  • the uppermost layer may constitute a type of “rapid freezing.” That is, a thin layer of ice can be rapidly formed in the uppermost layer. This can be formed approximately up to 10 cm on each side of the cooling pipe. Such layer can cover power peaks, but also be used to isolate the lower basin from the atmosphere.
  • rapid freezing is that, for example, an ice layer is formed overnight in order to isolate the lower basin from the atmosphere, while water is pumped over the ice during the day in order to absorb solar radiation and melt the thin ice layer.
  • the rapid freezing is to serve as a solar collector and, if the energy balance is negative (for example, a cold night), the rapid freezing is to serve as insulation.
  • the rapid freezing is to serve as insulation.
  • FIG. 1 is a schematic presentation of a power plant in accordance with the invention for realizing the invention
  • FIG. 2 is an energy storage device in accordance with the invention in a schematic representation
  • FIG. 3 is a heat exchanger as a component of an energy storage device in accordance with the invention in a perspective side view;
  • FIG. 4 is the heat exchanger of the embodiment in accordance with FIG. 3 in a side view
  • FIG. 5 is the heat exchanger of the embodiment in accordance with FIG. 3 in an additional side view
  • FIG. 6 is the heat exchanger of the embodiment in accordance with FIG. 3 in an additional side view.
  • FIG. 7 is the heat exchanger of the embodiment in accordance with FIG. 3 in an additional side view.
  • FIG. 1 schematically shows a power plant, which comprises one or several wind power plants WKA.
  • the wind power plants WKA are arranged on a mountain ridge, for example, over a river valley or the like.
  • a pump storage power plant KR is located below the wind power plants WKA, whereas the pump storage power plant KR is connected via a supply line LT to an upper reservoir OR of the wind power plants WKA.
  • the upper reservoir may be formed, for example, as a basin, in which the individual wind power plants are arranged, such that the upper reservoir OR forms a foundation for the wind power plant WKA.
  • the upper reservoir OR can be integrated in a mast of the wind power plant WKA, or can be designed as a separate storage device adjacent to the wind power plant WKA.
  • the pump storage power plant KR features a generator GE, which is connected to the supply line LT and is formed in such a manner that water, which is fed from the upper reservoir OR via the supply line LT through the generator GE into a lower basin UB, can be converted into electrical power. In the opposite direction, water can be pumped from the lower basin UG to the upper reservoir via a first supply line ZU 1 and a pump PU.
  • the generator GE is connected to a power grid SN, such that the generated electrical energy can be fed.
  • the pump storage power plant KR features an ice layer EI in the lower basin UB, which, as will be explained in more detail below, is arranged on the surface of the lower basin UB filled with water WA, as indicated by the arrow PF in FIG. 1 .
  • the lower basin UB filled with water WA is connected to a heat pump WP via a second supply line ZU 2 .
  • the lower basin UB can also be realized without a pump storage power plant KR; that is, for example, as a lake or generally as surface water.
  • a coolant for forming the ice layer EI can also be supplied via a third supply line ZU 3 through the heat pump WP to a heat exchanger WTA arranged in the lower basin UB.
  • the heat pump WP Through the extraction of sensible heat from the water WA of the lower basin UB or through the extraction of latent heat from the ice layer EI in the lower basin UB, the heat pump WP generates heat that can be supplied to a multiple number of consumers VR in the form of district heating FW.
  • the heat pump WP requires electrical power, which can be provided, for example, by the generator GE.
  • the heat pump WP is preferably located within the pump storage power plant KR or is arranged immediately adjacent thereto.
  • the pump PU is advantageously supplied with the electrical power emitted by the wind power plants WKA.
  • the lower basin UB together with the ice layer EI along with the water WA present in the lower basin UB, forms, together with the heat pump WP, an energy storage device EN.
  • FIG. 2 schematically shows the energy storage device EN, whereas, in accordance with FIG. 2 , the individual liquid flows between the different components are shown in detail.
  • the lower basin UB forms a component of the pump storage power plant KR via the first supply line ZU 1 .
  • water WA can thus be supplied to the lower basin UB or extracted from the lower basin UB, in order to be conducted via the pump PU into the upper reservoir OR.
  • water WA of the lower basin UB is supplied via the second supply line ZU 2 to the heat pump WP.
  • the supply is indicated in FIG. 2 as ZU 2 -H.
  • the return line which allows the water WA contained in the lower basin UB to cool, typically after flowing through the heat pump WP, is marked with the reference sign ZU 2 -R in FIG. 2 .
  • the cooled water on the one hand, can reach the lower basin UB via the supply line ZU 2 -R′. Furthermore, it is possible to supply the cooled water via the upper supply line ZL to the heat exchanger WTA.
  • cooling liquid is supplied to the heat exchanger WTA via the third supply line ZU 3 .
  • the cooling liquid reaches the heat exchanger WTA via the supply line marked with the reference sign ZU 3 -H; in FIG. 2 , the return line is indicated by the reference sign ZU 3 -R.
  • the heat pump WP is advantageously supplied with electrical power via the generator GE.
  • the heat pump WP delivers district heating FW to the consumers VR, as explained in connection with FIG. 1 .
  • the heat exchanger WTA is arranged in a floating manner on the lower basin UB filled with water WA, and includes pipes RO arranged in the form of a ring spiral. To the outside, the heat exchanger WTA is bounded by an outer wall AW, which surrounds the heat exchanger WTA along its outer circumference. The pipes RO and the outer wall AW are held via radially arranged spokes SRC. The upper supply line ZL is arranged above the pipes RO on the outer wall AW.
  • the position of the supply of the cooling liquid via the third supply line ZO 3 -H is also indicated.
  • the cooling liquid By introducing the cooling liquid into the center of the pipes RO arranged in the form of a ring spiral, the water WA located in the lower basin UB can be cooled, such that the ice layer EI is able to form around the pipes RO.
  • freezing takes place viewed radially from the inside outwards, which in particular increases the stability of the heat exchanger WTA floating on the lower basin UB.
  • the thickness of the ice layer in the heat exchanger WTA can be controlled over the duration of the supply line or the temperature of the cooling liquid.
  • the embodiment of the heat exchanger WTA shown in FIG. 3 is once again shown in a side view with reference to FIG. 4 .
  • the side view according to FIG. 4 takes place along a radial section, which leads through the center of the heat exchanger WTA. It can be seen that the supply of the third supply line ZU 3 -H is arranged near the center of the heat exchanger WTA.
  • the return (that is, the third supply line ZU 3 -R) is located closer to the outer wall AW.
  • the upper supply line ZL is arranged above the ring spiral RS.
  • the outer wall AW is designed in such a manner that the ring spiral RS is completely covered with respect to its height, such that individual sub-areas, which are also components of the heat exchanger WTA, are provided above the ring spiral RS and below the ring spiral RS.
  • air can be directed into the heat exchanger WTA via an air supply LZ, which will be explained below.
  • a post-like anchoring (not shown in FIG. 4 ) is provided; this is fastened to a base of the lower basin UB with its lower end.
  • the heat exchanger WTA can be moved axially, depending on the water level in the lower basin UB.
  • a fastening point BS in FIG. 4 which is connected to the post-like anchoring through suitably movable connecting means.
  • the heat exchanger WTA can be connected to the bottom of the lower basin UB via suitably prestressed tensioning cables (not shown in FIG. 4 ). The tensioning cables can also be locked in the area of the shore of the lower basin UB.
  • FIG. 5 in turns shows the heat exchanger WTA in the lower basin UB filled with water WA.
  • the ice layer EI which is bounded radially outwards by the outer wall AW, forms along the pipes RO.
  • the latent heat can be utilized by means of ice formation in the lower basin in the form of the ice layer EI and can be re-dissipated via the heat exchanger WTA, for example for heating buildings at a consumer's premises.
  • water WA is pumped via the upper inlet ZL, preferably via the cold water return ZU 2 -R, to the surface of the ice layer EI, such that the weight of the heat exchanger WTA is increased.
  • the ice layer EI sinks below the water surface of the water WA in the lower basin UB, and the layer of water WA arranged above the ice layer EI prevents solar radiation from directly striking the ice layer EI. Accordingly, the ice layer EI is decoupled from ambient air UL, such that the solar radiation is absorbed by the water in the lower basin UB. This increases the irradiated energy quantity, because otherwise the solar radiation would be largely reflected by the ice.
  • FIG. 5 The concept presented in FIG. 5 is continued in FIG. 6 , in which an insulation layer IS is arranged between the water layer WA, which arrives in the heat exchanger WTA via the upper inlet ZL, and the ice layer EI, which insulation layer IS provides for further improvement with respect to the decoupling against the ambient air UL.
  • FIG. 7 shows an alternative embodiment with which, in particular, the insulation against the water WA in the lower basin UB is considered.
  • an air cushion LT can be formed below the ice layer EI, which acts as insulation against the water WA of the lower basin UB.
  • an insulation layer SI along with an air cushion LP can be formed.
  • the individual adjacently arranged ice layers EI can be insulated from one another via insulation layers, similar to the insulation layer IS from FIG. 6 .
  • each layer can be provided with its own supply for the coolant, such that each layer can be controlled independently of the others. In this case, in particular, the uppermost layer can form a rapid-freezing level.
  • a thin layer of ice can be formed quickly in the uppermost layer. This can be formed approximately up to 10 cm on each side of the cooling pipe. Such layer can cover power peaks, but also be used to isolate the lower basin from the atmosphere.
  • the idea with rapid freezing is that, for example, an ice layer is formed overnight in order to isolate the lower basin from the atmosphere, while water is pumped over the ice during the day in order to absorb solar radiation and melt the thin ice layer.
  • the rapid freezing is to serve as a solar collector and, if the energy balance is negative (for example, a cold night), the rapid freezing is to serve as insulation.
  • “warm” water is quickly obtained in the collector, and a high degree of efficiency is obtained at the heat pump. At night, due to the insulation only little energy is lost to the atmosphere
  • the operation of the energy storage device EN in the seasonal cycle takes place in such a manner that, during the energy input by solar radiation (that is, in northern latitudes, typically from spring to autumn), a temperature spread takes place. This reduces the radiating power of the surface of the lower basin UB by cooling the water WA contained therein through the heat pump WP.
  • the temperature spread relative to the ambient temperature of the ambient air UL is approximately in the range from 5° C. to 10° C.
  • a cooling phase of the water WA in the lower basin UB to a temperature of approximately 0.5° C. commences, in order to enable an ice-free transition phase at the end of autumn (i.e., when the heating by solar radiation is abating).
  • the energy is extracted through freezing on the surface of the lower basin UB; that is, via the ice layer EI in the heat exchanger WTA.
  • continuous heat generation can be achieved via the heat exchanger WTA with the heat pump WP through a sufficiently large selected volume of the ice layer EI due to the high energy content for the crystallization of water WA to ice in the ice layer E.
  • the ice of the ice layer EI continues to melt on the WTA heat exchanger with a simultaneous reduction in energy extraction, and the water temperature of the water WA in the lower basin UB is increased through solar radiation.
  • the concept described above can be used for the supply of households with heat energy through the supply of district heating, whereas approximately 40,000 m 3 of ice must be provided for approximately 2000 to 4000 households, such that a natural lake would be adequately dimensioned as a lower basin UB.
  • the existing ice of the ice layer EI can also be used for cooling at the premises of the consumer VR during times of high ambient temperatures.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Power Engineering (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
  • Other Air-Conditioning Systems (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Wind Motors (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
US15/562,974 2015-03-30 2016-03-29 Energy Store, Power Plant having an Energy Store, and Method for Operating the Energy Store Abandoned US20180112930A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102015104909.0 2015-03-30
DE102015104909.0A DE102015104909B3 (de) 2015-03-30 2015-03-30 Energiespeicher, Kraftwerksanlage mit Energiespeicher und Verfahren zum Betrieb desselben
PCT/EP2016/056808 WO2016156321A1 (fr) 2015-03-30 2016-03-29 Accumulateur d'énergie, centrale électrique équipée d'accumulateur d'énergie et procédé pour les faire fonctionner

Publications (1)

Publication Number Publication Date
US20180112930A1 true US20180112930A1 (en) 2018-04-26

Family

ID=55640738

Family Applications (1)

Application Number Title Priority Date Filing Date
US15/562,974 Abandoned US20180112930A1 (en) 2015-03-30 2016-03-29 Energy Store, Power Plant having an Energy Store, and Method for Operating the Energy Store

Country Status (12)

Country Link
US (1) US20180112930A1 (fr)
EP (1) EP3123094B1 (fr)
JP (1) JP2018514746A (fr)
CN (1) CN107646067A (fr)
BR (1) BR112017020960A2 (fr)
CA (1) CA2981395A1 (fr)
DE (1) DE102015104909B3 (fr)
DK (1) DK3123094T3 (fr)
ES (1) ES2646289T3 (fr)
PL (1) PL3123094T3 (fr)
WO (1) WO2016156321A1 (fr)
ZA (1) ZA201706869B (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170366037A1 (en) * 2016-06-20 2017-12-21 General Electric Company Distribution of power commands in an energy storage system
US20180175673A1 (en) * 2015-04-10 2018-06-21 Enovate Medical Llc Proximity wireless power system using a bidirectional power converter
US20190331084A1 (en) * 2018-04-26 2019-10-31 Ellomay Capital Ltd. Pumped storage power station with ultra-capacitor array
WO2022017977A1 (fr) * 2020-07-24 2022-01-27 Envola GmbH Dispositif de transfert d'énergie et de stockage d'énergie dans un réservoir de liquide
US11774185B2 (en) 2019-07-05 2023-10-03 Envola GmbH Device for energy transfer and for energy storage in a liquid reservoir

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018069396A1 (fr) * 2016-10-12 2018-04-19 Kea Holding I Aps Accumulateur d'énergie thermique
EP4073451B1 (fr) 2019-12-10 2023-10-11 Envola GmbH Ensemble et procédé d'installation d'un accumulateur d'énergie, qui est au moins partiellement enterré dans le sol
DE102019133712B3 (de) * 2019-12-10 2021-03-11 Envola GmbH Anordnung und Verfahren zur Installation eines wenigstens teilweise in einem Erdreich eingesenkten Energiespeichers
DE102019135681B4 (de) * 2019-12-23 2022-01-27 Envola GmbH Energiespeicher
US20230121916A1 (en) 2020-03-26 2023-04-20 Envola GmbH Heat exchanger arrangement
DE102020108377A1 (de) 2020-03-26 2021-09-30 Envola GmbH Wärmetauscheranordnung
DE102020119653B3 (de) 2020-07-24 2021-07-15 Envola GmbH System zur Klimatisierung von Innenräumen eines Gebäudes
PL243378B1 (pl) 2021-10-31 2023-08-14 Jerzy Jurasz Instalacja do transportowania i magazynowania, zwłaszcza wodoru i jego mieszanek
DE102021130845A1 (de) 2021-11-24 2023-05-25 Envola GmbH System zur Klimatisierung eines Gebäudes.
CN115077152B (zh) * 2022-07-12 2024-02-13 苏州惟新传热科技有限公司 一种重力式充冷的冷藏蓄冷装置

Citations (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4174009A (en) * 1974-09-30 1979-11-13 Ingeborg Laing Long-period thermal storage accumulators
US4193543A (en) * 1978-02-23 1980-03-18 Viesturs Eric A Solar heating system
US4350143A (en) * 1974-10-09 1982-09-21 Nikolaus Laing Solar power station having groups of solar collectors
US4452227A (en) * 1982-06-14 1984-06-05 Lowrey Iii O Preston Active thermal storage using the ground underlying a solar pond
US4461276A (en) * 1979-05-25 1984-07-24 Ormat Turbines Ltd. Aqueous gel for heat storage pond and method for making the gel
US4781029A (en) * 1987-06-05 1988-11-01 Hydride Technologies Incorporated Methods and apparatus for ocean thermal energy conversion using metal hydride heat exchangers
US4814189A (en) * 1986-06-19 1989-03-21 Societe Thermique Generale Vinicole Process and apparatus for thermal control of winemaking
US4907415A (en) * 1988-11-23 1990-03-13 The Curator Of The University Of Missouri Slush ice making system and methods
US5207075A (en) * 1991-09-19 1993-05-04 Gundlach Robert W Method and means for producing improved heat pump system
US5983889A (en) * 1997-04-10 1999-11-16 Thomas; Mark R. Portable water tank heating system
US6681593B1 (en) * 2003-05-28 2004-01-27 Robert W. Gundlach Thermal energy storage system
US20100175426A1 (en) * 2009-01-09 2010-07-15 Hunton Energy Holdings, LLC Power Management For Gasification Facility
US20130228303A1 (en) * 2010-09-20 2013-09-05 Jan-Erik Eskilsby System for Storing Thermal Energy, Heating Assembly Comprising Said System and Method of Manufacturing Said System
US20140261132A1 (en) * 2013-03-14 2014-09-18 Fevzi Zeren Active volume energy level large scale sub-sea energy fluids storage methods and apparatus for power generation and integration of renewable energy sources
US20140318731A1 (en) * 2011-12-29 2014-10-30 7837003 Canada Inc. Extraction from large thermal storage systems using phase change materials and latent heat exchangers
US20150114019A1 (en) * 2012-03-28 2015-04-30 Vge Bvba Heat pump system using latent heat
US20150122356A1 (en) * 2013-03-14 2015-05-07 The Crom Corporation Spider diffuser system
US20150176920A1 (en) * 2013-12-20 2015-06-25 David VENDEIRINHO Thermal energy storage system
US20150233648A1 (en) * 2012-08-01 2015-08-20 Goseling Ug Cold Reservoir Device and Cooling System Arrangement
US20150292772A1 (en) * 2012-10-25 2015-10-15 James Murphy Solar energy system
US20160327284A1 (en) * 2013-09-24 2016-11-10 Energen Chile S.A. Modular hydrotherm and operation method

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2715075A1 (de) * 1977-04-04 1978-10-12 Helfried Crede Verfahren und vorrichtung zur energiegewinnung aus umgebenden waermequellen
DE2926610A1 (de) * 1979-07-02 1981-01-22 Karl Schwarz Wasser-eis-speicher zur bereitstellung der eingangsenergie fuer waermepumpen-anlagen insbesondere in verbindung mit solar-anlagen
DE3017183A1 (de) * 1980-05-05 1981-11-12 Schrammel Dieter Waermepumpenanlage mit waermetauscher fuer oberflaechengewasser
CN100365356C (zh) * 2004-09-30 2008-01-30 北京北控恒有源科技发展有限公司 江河湖海低品位能量提取系统
DE102009037118A1 (de) * 2009-08-11 2011-02-17 Mauz, Hubert Vorrichtung und Verfahren zum Wärmeentzug aus Flüssigkeiten mit einem schwimmenden Wärmetauscher
DE102010037474A1 (de) * 2010-09-10 2012-01-19 Hammer Heizungsbau-Gmbh Speichertankeinrichtung für ein Energiespeichersystem sowie Energiespeichersystem mit einer Speichertankeinrichtung
DE102011050032A1 (de) * 2011-05-02 2012-11-08 Hansjörg Schechner Windkraftanlage und Einrichtung zur Gewinnung elektrischer Energie mit einer solchen Windkraftanlage

Patent Citations (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4174009A (en) * 1974-09-30 1979-11-13 Ingeborg Laing Long-period thermal storage accumulators
US4350143A (en) * 1974-10-09 1982-09-21 Nikolaus Laing Solar power station having groups of solar collectors
US4193543A (en) * 1978-02-23 1980-03-18 Viesturs Eric A Solar heating system
US4461276A (en) * 1979-05-25 1984-07-24 Ormat Turbines Ltd. Aqueous gel for heat storage pond and method for making the gel
US4452227A (en) * 1982-06-14 1984-06-05 Lowrey Iii O Preston Active thermal storage using the ground underlying a solar pond
US4814189A (en) * 1986-06-19 1989-03-21 Societe Thermique Generale Vinicole Process and apparatus for thermal control of winemaking
US4781029A (en) * 1987-06-05 1988-11-01 Hydride Technologies Incorporated Methods and apparatus for ocean thermal energy conversion using metal hydride heat exchangers
US4907415A (en) * 1988-11-23 1990-03-13 The Curator Of The University Of Missouri Slush ice making system and methods
US5207075A (en) * 1991-09-19 1993-05-04 Gundlach Robert W Method and means for producing improved heat pump system
US5983889A (en) * 1997-04-10 1999-11-16 Thomas; Mark R. Portable water tank heating system
US6681593B1 (en) * 2003-05-28 2004-01-27 Robert W. Gundlach Thermal energy storage system
US20100175426A1 (en) * 2009-01-09 2010-07-15 Hunton Energy Holdings, LLC Power Management For Gasification Facility
US20130228303A1 (en) * 2010-09-20 2013-09-05 Jan-Erik Eskilsby System for Storing Thermal Energy, Heating Assembly Comprising Said System and Method of Manufacturing Said System
US20140318731A1 (en) * 2011-12-29 2014-10-30 7837003 Canada Inc. Extraction from large thermal storage systems using phase change materials and latent heat exchangers
US20150114019A1 (en) * 2012-03-28 2015-04-30 Vge Bvba Heat pump system using latent heat
US20150233648A1 (en) * 2012-08-01 2015-08-20 Goseling Ug Cold Reservoir Device and Cooling System Arrangement
US20150292772A1 (en) * 2012-10-25 2015-10-15 James Murphy Solar energy system
US20140261132A1 (en) * 2013-03-14 2014-09-18 Fevzi Zeren Active volume energy level large scale sub-sea energy fluids storage methods and apparatus for power generation and integration of renewable energy sources
US20150122356A1 (en) * 2013-03-14 2015-05-07 The Crom Corporation Spider diffuser system
US20160327284A1 (en) * 2013-09-24 2016-11-10 Energen Chile S.A. Modular hydrotherm and operation method
US20150176920A1 (en) * 2013-12-20 2015-06-25 David VENDEIRINHO Thermal energy storage system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180175673A1 (en) * 2015-04-10 2018-06-21 Enovate Medical Llc Proximity wireless power system using a bidirectional power converter
US10637296B2 (en) 2015-04-10 2020-04-28 Enovate Medical Llc Contactless battery system utilizing a bidirectional power converter
US20170366037A1 (en) * 2016-06-20 2017-12-21 General Electric Company Distribution of power commands in an energy storage system
US10141776B2 (en) * 2016-06-20 2018-11-27 General Electric Company Distribution of power commands in an energy storage system
US20190331084A1 (en) * 2018-04-26 2019-10-31 Ellomay Capital Ltd. Pumped storage power station with ultra-capacitor array
US11774185B2 (en) 2019-07-05 2023-10-03 Envola GmbH Device for energy transfer and for energy storage in a liquid reservoir
WO2022017977A1 (fr) * 2020-07-24 2022-01-27 Envola GmbH Dispositif de transfert d'énergie et de stockage d'énergie dans un réservoir de liquide

Also Published As

Publication number Publication date
DE102015104909B3 (de) 2016-09-29
ES2646289T3 (es) 2017-12-13
BR112017020960A2 (pt) 2018-07-10
JP2018514746A (ja) 2018-06-07
ZA201706869B (en) 2019-06-26
CN107646067A (zh) 2018-01-30
CA2981395A1 (fr) 2016-10-06
EP3123094A1 (fr) 2017-02-01
EP3123094B1 (fr) 2017-08-23
WO2016156321A1 (fr) 2016-10-06
DK3123094T3 (da) 2017-11-20
PL3123094T3 (pl) 2018-02-28

Similar Documents

Publication Publication Date Title
US20180112930A1 (en) Energy Store, Power Plant having an Energy Store, and Method for Operating the Energy Store
US10344741B2 (en) Hydro-pneumatic energy storage system
US9657998B2 (en) Method for operating an arrangement for storing thermal energy
EP2012366A2 (fr) Système photovoltaïque à efficacité améliorée et procédé incrémentiel de la production d'énergie électrique d'au moins un module solaire thermo-photovoltaïque
ES2898455T3 (es) Dispositivo para transmitir y almacenar energía en un depósito de líquido
US8851066B1 (en) Thermal energy storage system
US20130207390A1 (en) Hydroelectric in-pipe turbine uses
US6367257B1 (en) Installation for producing solar thermal energy
ES2664731T3 (es) Mejora de la eficiencia en centrales energéticas
US11359597B2 (en) Combined pumped hydro and thermal energy storage
KR101959822B1 (ko) 지반침하 대비용 태양광 발전 장치, 태양광 발전 시스템, 및 친환경 하이브리드 발전시스템
NL2024034B1 (en) Device, system and method for the exchange and storage of thermal and electrical energy
GB2552325A (en) Thermal store arrangement
Smith et al. Cold climate energy production
Düren et al. Energy in Times After the Energy Transition
WO2023244465A1 (fr) Stockage d'eau chaude souterraine en réseau (usuhws) destiné à la production d'énergie et l'alimentation en chaleur
WO2018069396A1 (fr) Accumulateur d'énergie thermique
JPS6123369A (ja) 太陽電池電源装置
SK288724B6 (sk) Energetické zariadenie na vykonávanie spôsobu prevádzkovania energeticky autonómnych stavieb
Silvetti Thermal Energy Storage-Btu's in the Land of kWh's

Legal Events

Date Code Title Description
AS Assignment

Owner name: NATURSPEICHER GMBH, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SCHECHNER, ALEXANDER;DEROI, LUIS;IHLE, GERHARD;REEL/FRAME:044715/0933

Effective date: 20171124

STPP Information on status: patent application and granting procedure in general

Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION

STPP Information on status: patent application and granting procedure in general

Free format text: NON FINAL ACTION MAILED

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION