WO2019097436A1 - Thermal energy storage system - Google Patents
Thermal energy storage system Download PDFInfo
- Publication number
- WO2019097436A1 WO2019097436A1 PCT/IB2018/058982 IB2018058982W WO2019097436A1 WO 2019097436 A1 WO2019097436 A1 WO 2019097436A1 IB 2018058982 W IB2018058982 W IB 2018058982W WO 2019097436 A1 WO2019097436 A1 WO 2019097436A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- air duct
- perforated
- duct
- perforated vessel
- air
- Prior art date
Links
- 238000004146 energy storage Methods 0.000 title claims description 10
- 239000002594 sorbent Substances 0.000 claims abstract description 91
- 239000002245 particle Substances 0.000 claims abstract description 24
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 26
- 238000000034 method Methods 0.000 claims description 26
- 239000010457 zeolite Substances 0.000 claims description 18
- 229910021536 Zeolite Inorganic materials 0.000 claims description 14
- 239000012530 fluid Substances 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 5
- 239000002250 absorbent Substances 0.000 claims description 2
- 230000002745 absorbent Effects 0.000 claims description 2
- 239000003570 air Substances 0.000 description 143
- 239000002585 base Substances 0.000 description 17
- 238000005338 heat storage Methods 0.000 description 10
- 238000001179 sorption measurement Methods 0.000 description 10
- 239000012080 ambient air Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000010438 heat treatment Methods 0.000 description 7
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000003795 desorption Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 150000004677 hydrates Chemical class 0.000 description 2
- 230000000887 hydrating effect Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 229910001579 aluminosilicate mineral Inorganic materials 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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
- F28D20/003—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using thermochemical reactions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F5/00—Elements specially adapted for movement
- F28F5/02—Rotary drums or rollers
-
- 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 present disclosure relates to absorbing and releasing thermal energy, particularly relates to methods and systems for heat storage, and more particularly relates to regenerative heat-exchange devices.
- Thermal energy storage systems may be classified into three types.
- Sensible heat storage systems in which thermal energy is stored by heating or cooling a storage medium such as water and when the energy is needed, it may be desorbed for use.
- Latent heat storage systems where the storage medium may undergo phase transformation and may offer a high energy storage capacity and a long storage period.
- Thermochemical storage systems in which the endothermic reaction of a chemical storage medium may be utilized for storing thermal energy. These thermal energy storage systems may store thermal energy for later use in buildings and industrial processes based on their thermal energy demand.
- Zeolites are aluminosilicate minerals of alkali or alkaline earth metals and they include intracrystaline voids that may be partially filled with water molecules. When water molecules are absorbed by a zeolite, absorption heat is released and when water molecules are evaporated or in other words removed from interconnected voids within the zeolite, desorption heat may be stored within the zeolite. This feature may allow utilization of zeolite as thermal storage media particularly in thermal storage systems that utilize solid-gas physical sorption reactions for thermal heat storage.
- thermochemical storage systems are currently economically feasible only for applications with high number and frequency of storage cycles. There is therefore a need for latent heat thermal storage systems and thermochemical storage systems that allow for a cheaper and a more stable storage of thermal energy. There is further a need for new systems and methods for development of smaller and cheaper latent heat thermal storage systems and thermochemical storage systems.
- the present disclosure is directed to a thermal storage system that may include a perforated vessel, an inner air duct that may be concentrically disposed within the perforated vessel with a gap between a lateral outer surface of the inner air duct and inner surface of the perforated vessel.
- the lateral outer surface of the inner air duct may be partially perforated.
- the air duct may be rotatable inside the perforated vessel about a longitudinal axis of the perforated vessel.
- the exemplary systems may further include a sorbent bed that may include a plurality of sorbent particles disposed within the perforated vessel within the gap.
- the inner air duct may be configured to allow forcing an air stream to pass through the sorbent bed.
- the exemplary systems may further include an actuator that may be coupled with the inner air duct.
- the actuator may be configured to cause a rotational movement of the inner air duct about the longitudinal axis of the perforated vessel.
- the exemplary systems may further include a pressurized air source.
- the inner air duct may be connected in fluid communication with the pressurized air source.
- the pressurized air source may be configured to provide pressurized air with a temperature between 100 °C and 140 °C.
- the pressurized air source configured to provide pressurized air with a temperature between 25 °C and 55 °C.
- the perforated vessel may be a cylindrical diffuser with a perforated lateral surface.
- the inner air-duct may be an elongated rotatable duct with a cam-shaped cross-section.
- the cam-shaped cross-section may include a base circle and a lobe.
- the inner air-duct may be disposed within the perforated vessel such that the base circle concentric with the cylindrical diffuser.
- the lobe of the cam-shaped cross- section may define a protruded section of the inner air-duct, where the protruded section may be perforated.
- the base circle of the cam-shaped cross-section may define a base section of the inner air-duct.
- the inner air-duct may be disposed within the perforated vessel such that a first air-gap between an outer surface of the protruded section and the inner surface of the perforated vessel smaller than a second air gap between an outer surface of the base section and the inner surface of the perforated vessel.
- the plurality of absorbent particles may include a plurality of zeolite particles.
- the plurality of sorbent particles include a plurality of zeolite 13c particles.
- the plurality of zeolite particles may include a plurality of zeolite 13c particles with an average particle size between mesh 30 and mesh 60.
- the present disclosure is directed to a method for thermal energy storage.
- the exemplary method may include concentrically placing a rotatable air duct within a perforated vessel with a gap between an outer surface of the rotatable air duct and an inner surface of the perforated vessel, the air duct comprising a cam-shaped elongated duct with a base section and a protruded perforated section, forming a sorbent bed by pouring a plurality of zeolite particles in the gap, injecting an air stream into the rotatable air duct, the rotatable air duct allowing a radial discharge of the injected air stream via the protruded perforated section through the sorbent bed, and concurrently rotating the rotatable air duct within the perforated vessel.
- concentrically placing the rotatable air duct within the perforated vessel may include placing the rotatable air duct within the perforated vessel such that the base section being concentric with the perforated vessel.
- forming the sorbent bed comprises pouring a plurality of zeolite particles with an average size between mesh 30 and mesh 60 in the gap. In an exemplary embodiment, forming the sorbent bed comprises pouring a plurality of zeolite 13c particles with an average size between mesh 30 and mesh 60 in the gap.
- the air stream may have a temperature between 100 °C and 140 °C. In an exemplary embodiment, the air stream has a temperature between 25 °C and 55 °C.
- FIG. 1 illustrates a thermal storage system during a charging step, consistent with one or more exemplary embodiments of the present disclosure
- FIG. 2A illustrates a perspective sectional view of a thermal storage system, consistent with one or more exemplary embodiments of the present disclosure
- FIG. 2B illustrates a top sectional view of a thermal storage system, consistent with one or more exemplary embodiments of the present disclosure
- FIG. 3 illustrates an exploded view of a thermal storage system, consistent with one or more exemplary embodiments of the present disclosure
- FIG. 4 illustrates a top sectional view of a thermal storage system, consistent with one or more exemplary embodiments of the present disclosure
- FIG. 5 illustrates a lateral view of an inner air duct, consistent with one or more exemplary embodiments of the present disclosure.
- FIG. 6 is a block diagram of a thermal storage system, consistent with one or more exemplary embodiments of the present disclosure.
- thermal energy may be stored in the thermal energy storage medium via a solid-gas physical sorption reaction.
- Exemplary methods may include a storage cycle with a charging step and a decharging step.
- a hot air stream may be forced through a sorbent bed in order to remove water molecules from the sorbent and store thermal energy in the sorbent.
- an air stream intended to be heated may pass through the charged sorbent and water molecules in the air stream may be adsorbed or otherwise absorbed into the sorbent and sorption heat may be release and heat the air stream.
- Exemplary systems and methods may facilitate the passage of the air stream through the sorbent bed and allow for an effective heat storage within the sorbent bed and an effective heat release from the sorbent bed by providing an air injection mechanism that may enable forcing an air stream through a thin layer of the sorbent without a need for reducing total amount of sorbent used in exemplary systems.
- FIG. 1A illustrates a thermal storage system 100 during a charging step, consistent with one or more exemplary embodiments of the present disclosure.
- thermal storage system 100 may include a sorbent bed 102 filled with a sorbent capable of absorbing or otherwise adsorbing liquids.
- the sorbent may be a material capable of attracting and holding water molecules from the surrounding environment coupled with an exothermic reaction when transitioning from a dehydrated form to a hydrated form.
- sorbent bed 102 may be filled with a sorbent such as a zeolite. Zeolites have a high heat of adsorption and they are capable of hydrating and dehydrating in several heat storage cycles while maintaining their structural stability.
- FIG. IB illustrates thermal storage system 100 during a decharging step, consistent with one or more exemplary embodiments of the present disclosure.
- thermal storage system 100 may be decharged or in other words release the heat that was stored during charging step by passing an ambient air stream 106 through sorbent bed 102.
- water vapor present in ambient air stream 106 may be adsorbed by the sorbent and the sorption heat released may be utilized for heating ambient air stream 106 to provide a heated air stream 108.
- heated air stream 108 may either be directly used for heating purposes or it may be used in other types of exchangers as the heating fluid. For example, since heated air stream 108 may be dry, it may be utilized in an air-to-air heat exchanger to heat a fresh humid air stream to provide a more comfortable experience for the users.
- FIG. 2A illustrates a perspective sectional view of a thermal storage system 200, consistent with one or more exemplary embodiments of the present disclosure.
- FIG. 2B illustrates a top sectional view of thermal storage system 200, consistent with one or more exemplary embodiments of the present disclosure.
- thermal storage system 200 may be an implementation of thermal storage system 100 of FIGs. 1A and IB.
- thermal storage system 200 may include a perforated vessel 202 and a perforated inner air duct 204 that may be concentrically disposed within perforated vessel 202.
- a sorbent bed 206 may be formed by pouring a plurality of sorbent particles in an air gap between a lateral outer surface of perforated inner air duct 204 and inner surface of perforated vessel 202.
- An air stream 208 may be fed into thermal storage system 200 along a longitudinal axis 210 of perforated inner air duct 204.
- perforated inner air duct 204 may be a perforated duct with an upper opening 212 and a closed lower end.
- Air stream 208 may be fed through upper opening 212 of perforated inner air duct 204 and exit perforated inner air duct 204 via lateral perforations 214 and may pass through sorbent bed 206 and exit perforated vessel 202 via lateral perforations 216.
- perforated vessel 202 may be a cylindrical diffuser with lateral perforations and perforated inner air duct 204 may be a perforated cylindrical duct that may be concentrically disposed within perforated vessel 202 with an air gap between a lateral outer surface of perforated inner air duct 204 and inner surface of perforated vessel 202.
- Air stream 208 may be axially fed into perforated inner air duct 204 and it may radially exit perforated inner air duct 204.
- a plurality of sorbent particles for example, zeolite particles may be poured into the air gap between perforated inner air duct 204 and perforated vessel 202 to form sorbent bed 206.
- air stream 208 may be a hot air stream with a temperature in a range of 100 °C to 140 °C.
- the hot air stream is axially fed into perforated inner air duct 204 and it radially exits via lateral perforations 214 of perforated inner air duct 204 through sorbent bed 206, the hot air stream dehydrates sorbent bed 206 and desorption heat may be stored within sorbent bed 206.
- air stream 208 may be an ambient air stream with a temperature in a range of 25 °C to 55 °C.
- the ambient air stream is axially fed into perforated inner air duct 204 and it radially exits via lateral perforations 214 of perforated inner air duct 204 through sorbent bed 206, the ambient air stream hydrates sorbent bed 206 and sorption heat may be released and used for heating purposes. Sorption heat may be blown out of thermal storage system 200 via lateral perforations 216 of perforated vessel 202.
- the thickness of sorbent beds 102 and 206 may be small enough for the air stream to be forced through the entire thickness of the bed to either completely hydrate or dehydrate sorbent beds 102 and 206.
- the heating capacity and maximum number of heat storage cycles of thermal storage systems 100 and 200 at least partially depend on the amount of sorbent material used in thermal storage systems 100 and 200.
- Thick sorbent beds 102 and 206 may allow for utilizing a larger amount of sorbent, however, as mentioned above, thick sorbent beds 102 and 206 may not allow for an efficient gas-solid contact between the air stream and the sorbent.
- exemplary systems and methods for thermal energy storage may include an air injection mechanism that may enable forcing an air stream through a thin sorbent bed without a need for reducing total amount of sorbent used in exemplary systems, which will be described later in this disclosure.
- FIG. 3 illustrates an exploded view of a thermal storage system 300, consistent with one or more exemplary embodiments of the present disclosure.
- thermal storage system 300 may be an implementation of thermal storage system 100 of FIGs. 1A and IB.
- Thermal storage system 300 may include a perforated vessel 302 and an inner air duct 304 that may be concentrically disposed within perforated vessel 302 with an air gap between a lateral outer surface 306 of inner air duct 304 and an inner surface 308 of perforated vessel 302.
- inner air duct 304 may include perforations 310 on a portion of lateral outer surface 306.
- Inner air duct 304 may further include an air inlet opening at a first base end 312 of inner air duct 304 and a second base end 314 of inner air duct 304 may be closed such that inner air duct 304 may allow for forcing an air stream axially into inner air duct 304 along a longitudinal axis 316 of inner air duct 304 and discharging the air stream radially out of inner air duct 304 through perforations 310.
- perforated vessel 302 may be a cylindrical diffuser with lateral perforations with an upper opening 313 and a base end 315.
- FIG. 4 illustrates a top sectional view of thermal storage system 300, consistent with one or more exemplary embodiments of the present disclosure.
- FIG. 5 illustrates a lateral view of inner air duct 304, consistent with one or more exemplary embodiments of the present disclosure.
- inner air duct 304 may be an elongated rotatable duct with a cam-shaped cross-section 318.
- cam-shaped cross-section 318 may include a base circle 320 and a protruded portion or otherwise a lobe 322.
- inner air duct 304 may be disposed within perforated vessel 302 such that base circle 320 may be concentric with perforated vessel 302.
- Extension of base circle 320 along longitudinal axis 316 may form a base section 324 of inner air duct 304 and extension of lobe 322 along longitudinal axis 316 may form a protruded section 326 of inner air duct 304.
- lobe 322 may include flanks 328 and a nose 330.
- nose 330 may include perforations 310 through which air stream may be blown out of inner air duct 304.
- the gap between lateral outer surface 306 of inner air duct 304 and inner surface 308 of perforated vessel 302 may be filled with sorbent particles such as zeolite particles to form a sorbent bed 402.
- the entire gap between inner air duct 304 and perforated vessel 302 may be filled with sorbent particles.
- protruded section 326 of inner air duct 304 enables reducing a thickness of sorbent bed 402 that is between nose 330 of protruded section 326 and inner surface 308 of perforated vessel 302 by an amount equal to a lobe lift 404 of inner air duct 304.
- such a configuration allows for forcing an inlet air stream through a thin layer of sorbent via perforations 310 in order to have a more efficient solid-gas contact. Since the thickness is only reduced where the air is intended to be injected through sorbent bed 402 there is no need to reduce the thickness of the entire sorbent bed 402 and as a result there is no need to reduce the total amount of sorbent in thermal storage system 300.
- inner air duct 304 may be rotatable within perforated vessel 302 about longitudinal axis 316.
- sorbent particles may slide over either one of flanks 328 depending on a direction of the rotational movement of inner air duct 304 and this allows a smooth rotational movement of inner air duct 304 inside sorbent bed 402 among sorbent particles.
- Inner air duct 304 may rotate within sorbent bed 402 and allow for blowing an air stream through sorbent bed in different directions along the entire periphery of perforated vessel 302 via perforations 310, while protruded section 326 reduces the thickness of a portion of sorbent bed 402 through which the air stream is to be blown. Such a configuration may enable forcing the air stream through a thin sorbent bed without a need for reducing total amount of sorbent used in exemplary systems.
- FIG. 6 is a block diagram of a thermal storage system 600, consistent with one or more exemplary embodiments of the present disclosure.
- thermal storage system 600 may be an implementation of thermal storage system 300 of FIG. 3.
- a rotatable air duct 602 similar to inner air duct 304 may be placed within a sorbent bed 604 similar to sorbent bed 402.
- Rotatable air duct 602 may be coupled to an actuator 606 that may be a rotary actuator such as a rotary motor.
- Actuator 606 may be configured to drive a rotational movement of rotatable air duct 602 within sorbent bed 604.
- actuator 606 may drive a rotational movement of inner air duct 304 within perforated vessel 302 about longitudinal axis 316
- rotatable air duct 602 may be connected in fluid communication with a pressurized air source 608.
- Pressurized air source 608 may be configured for providing an air stream in rotatable air duct 602.
- the air stream may be a hot air stream with a temperature in a range of 100 °C to 140 °C.
- the hot air stream is axially fed into rotatable air duct 602 and it radially exits rotatable air duct 602 through sorbent bed 604 as shown by arrows 610, 612, the hot air stream dehydrates sorbent bed 604 and desorption heat may be stored within sorbent bed 604.
- sorbent bed 604 may also be heated by an alternative heat source other than a hot air stream, where the alternative heat source may have a temperature in a range of 100 °C to 140 °C.
- the air stream provided by pressurized air source 608 may be an ambient air stream with a temperature in a range of 25 °C to 55 °C.
- the ambient air stream is axially fed into rotatable air duct 602 and it radially exits rotatable air duct 602 through sorbent bed 604, the ambient air stream hydrates sorbent bed 604 and sorption heat may be released and used for heating purposes. Sorption heat may radially be blown out of thermal storage system 600 as shown by arrows 610, 612.
- thermal storage system 300 may include an air duct cap 332.
- Air duct cap 332 may include an outer lip 334 which may be integrally formed with and connected to a recessed portion 336.
- recessed portion 336 may be formed as a short extended part with a similar cross-section with inner air duct 304, for example a cam-shaped cross-section.
- Recessed portion 336 may be sized and shaped so that it may seat within upper opening of inner air duct 304.
- Outer lip 334 may be sized and shaped so that it may engage with an upper edge of inner air duct 304.
- air duct cap 332 may further include an upper projecting portion 338 which may be formed as a cylinder concentric with base section 324 that may function as a coupling member by which air duct cap 332 and in turn inner air duct 304 may be coupled to a rotational actuator, such as actuator 606 of FIG. 6.
- a rotational actuator such as actuator 606 of FIG. 6.
- other additional coupling members such as coupling member 340 may further be used to ensure an efficient coupling of inner air duct 304 with actuator 606, however they are not discussed herein for simplicity.
- thermal storage system 300 may further include a lid 342 that may be sized and shaped so that it may engage and close first base end 312 of perforated vessel 302.
- lid 342 may include a coupling member 344 that may be aligned with upper projecting portion 338. Coupling member 344 may receive upper projecting portion 338 therein.
- base end 315 may further include a central hole 346 connected in fluid communication with a protruded connection port 348 under inner air duct 304.
- central hole 346 may be connected in fluid communication with pressurized air source 608 and air stream provided by pressurized air source 608 may be injected into inner air duct 304 via protruded connection port 348.
- sorbent bed 604 may be filled with zeolite particles, such as zeolite 13c particles.
- zeolites have a high heat of adsorption and they are capable of hydrating and dehydrating in several heat storage cycles while maintaining their structural stability. This makes zeolites good candidates for the sorbent materials that may be utilized in exemplary systems and methods.
- sorbent bed 604 may be filled with zeolite particles, such as zeolite 13c particles with an average particle size between mesh 30 and mesh 60.
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- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
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- Chemical Kinetics & Catalysis (AREA)
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- Separation Of Gases By Adsorption (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US201762586201P | 2017-11-15 | 2017-11-15 | |
US62/586,201 | 2017-11-15 |
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Publication Number | Publication Date |
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WO2019097436A1 true WO2019097436A1 (en) | 2019-05-23 |
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PCT/IB2018/058982 WO2019097436A1 (en) | 2017-11-15 | 2018-11-15 | Thermal energy storage system |
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6672103B1 (en) * | 1999-12-21 | 2004-01-06 | Helmut Stach | High power density sorption heat store |
US20170038101A1 (en) * | 2013-11-29 | 2017-02-09 | Denso Corporation | Adsorption core and manufacturing method thereof |
US9709347B2 (en) * | 2011-03-23 | 2017-07-18 | Energy Technologies Institute Llp | Thermal storage system |
-
2018
- 2018-11-15 WO PCT/IB2018/058982 patent/WO2019097436A1/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6672103B1 (en) * | 1999-12-21 | 2004-01-06 | Helmut Stach | High power density sorption heat store |
US9709347B2 (en) * | 2011-03-23 | 2017-07-18 | Energy Technologies Institute Llp | Thermal storage system |
US20170038101A1 (en) * | 2013-11-29 | 2017-02-09 | Denso Corporation | Adsorption core and manufacturing method thereof |
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