DE102010004358A1 - Latent heat accumulator for use as e.g. overheating protection device in open solar receiver system of solar power station, has cells are made of high temperature-steady material and limit at channel, where fluid flows through channel - Google Patents
Latent heat accumulator for use as e.g. overheating protection device in open solar receiver system of solar power station, has cells are made of high temperature-steady material and limit at channel, where fluid flows through channel Download PDFInfo
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- DE102010004358A1 DE102010004358A1 DE102010004358A DE102010004358A DE102010004358A1 DE 102010004358 A1 DE102010004358 A1 DE 102010004358A1 DE 102010004358 A DE102010004358 A DE 102010004358A DE 102010004358 A DE102010004358 A DE 102010004358A DE 102010004358 A1 DE102010004358 A1 DE 102010004358A1
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- cells
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- latent heat
- heat transfer
- high temperature
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- 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
- F28D20/023—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 being enclosed in granular particles or dispersed in a porous, fibrous or cellular structure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S20/00—Solar heat collectors specially adapted for particular uses or environments
- F24S20/20—Solar heat collectors for receiving concentrated solar energy, e.g. receivers for solar power plants
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S60/00—Arrangements for storing heat collected by solar heat collectors
- F24S60/10—Arrangements for storing heat collected by solar heat collectors using latent heat
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
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- 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
- Y02E70/00—Other energy conversion or management systems reducing GHG emissions
- Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Combustion & Propulsion (AREA)
- Dispersion Chemistry (AREA)
- Photovoltaic Devices (AREA)
Abstract
Description
Die Erfindung betrifft einen Latentwärmespeicher mit einem Phasenwechselmaterial (PCM), das in feinzelligen Zellen abgeschlossen enthalten ist, wobei jede der Zellen an mindestens einen Kanal angrenzt, der von einem Wärmeträgerfluid durchströmt ist.The invention relates to a latent heat accumulator with a phase change material (PCM), which is contained in finely divided cells, wherein each of the cells adjacent to at least one channel, which is flowed through by a heat transfer fluid.
Bei der technischen Nutzung von Wärme zu Heizzwecken oder für industrielle Prozesse tritt häufig das Problem der Speicherung auf, weil Wärmeangebot und -nachfrage zeitlich differieren. Um das Volumen technischer Wärmespeicher zu minimieren, werden neben sensibler Wärmespeicherung auch Latentwärmespeicher oder thermochemische Speicher eingesetzt. Latentwärmespeicher nutzen die Schmelzenthalpie bzw. die Kristallisationswärme von Festkörpern. Beim Beladen des Speichers wird ein als Phasenwechselmaterial (PCM) verwendeter Stoff geschmolzen, bei der Entnahme von Wärme aus dem Speicher verfestigt sich das PCM wieder und gibt die Kristallisationswärme an den Verbraucher ab. Latentwärmespeicher weisen im Vergleich zu sensiblen Wärmespeichern ein erheblich kleineres Volumen auf.In the technical use of heat for heating purposes or for industrial processes, the problem of storage often occurs because heat supply and demand differ in time. In order to minimize the volume of technical heat storage, latent heat storage or thermochemical storage are used in addition to sensitive heat storage. Latent heat storage devices use the enthalpy of fusion or the heat of crystallization of solids. When loading the memory, a material used as a phase change material (PCM) is melted, when removing heat from the memory, the PCM solidifies again and releases the heat of crystallization to the consumer. Latent heat storage devices have a significantly smaller volume compared to sensitive heat storage devices.
Latentwärmespeicher werden hauptsächlich auf dem Gebiet der Raumheizung eingesetzt. In
Der Erfindung liegt die Aufgabe zugrunde, einen Latentwärmespeicher für den Hochtemperaturbereich zu schaffen, der im Stande ist, die gespeicherte Energie schnell an ein Wärmeträgermedium (WTM) abzugeben. Dadurch sollen neue Anwendungsgebiete für einen Latentwärmespeicher erschlossen werden.The invention has for its object to provide a latent heat storage for the high temperature range, which is able to deliver the stored energy quickly to a heat transfer medium (WTM). As a result, new applications for a latent heat storage to be developed.
Der erfindungsgemäße Latentwärmespeicher ist durch den Patentanspruch 1 definiert. Das Phasenwechselmaterial hat eine Schmelztemperatur im Hochtemperaturbereich (> 800°C). Es handelt sich um ein Metall oder Salz. Auch das Material der Zellen, die das PCM umschließen, ist hochtemperaturbeständig, besteht also beispielsweise aus einer Keramik oder aus Graphit. Die Zellen sind Mikrozellen mit einer Weite von maximal 2 mm. Die Aufteilung des Volumens auf zahlreiche Zellen hat zur Folge, dass eine insgesamt sehr große Oberfläche entsteht, so dass ein guter Wärmeaustausch zwischen dem Innern und dem Äußeren der Zelle stattfindet. Auf diese Weise erfolgt eine schnelle Ladung/Entladung, so dass der Latentwärmespeicher auf Temperaturänderungen des ihn durchströmenden Wärmeträgermediums mit kurzer Reaktionszeit antwortet. Der Latentwärmespeicher eignet sich besonders für die Kurzzeitspeicherung von Solarwärme bei Unterbrechung der Strahlung. Er kann auch eingesetzt werden für eine Begrenzung der Aufheizung des Absorbermoduls bei einem kurzzeitigen Ausfall des – den Absorber durchfließenden – Kühlluftstromes.The latent heat storage according to the invention is defined by the patent claim 1. The phase change material has a melting temperature in the high temperature range (> 800 ° C). It is a metal or salt. Also, the material of the cells that enclose the PCM, is resistant to high temperatures, so for example, consists of a ceramic or graphite. The cells are microcells with a maximum width of 2 mm. The distribution of the volume over numerous cells results in an overall very large surface, so that a good heat exchange between the inside and the outside of the cell takes place. In this way, there is a rapid charge / discharge, so that the latent heat storage responds to changes in temperature of the heat transfer medium flowing through it with a short reaction time. The latent heat storage is particularly suitable for the short-term storage of solar heat when the radiation is interrupted. It can also be used for limiting the heating of the absorber module in the event of a short-term failure of the cooling air flow flowing through the absorber.
Die Erfindung dient dem Zweck, Wärme bei hohen Temperaturen (bis ca. 1100°C) zu speichern und im Bedarfsfall schnell abzuführen.The purpose of the invention is to store heat at high temperatures (up to about 1100 ° C.) and, if necessary, to remove it quickly.
Anwendungsgebiete der Erfindung sind neben solarthermischer Kraftwerkstechnik die konventionelle Kraftwerkstechnik, Wärme-Rekuperation, Wärmeregeneration in der Glas- und Keramikherstellung, Stirlingmotoren, Lufterhitzer, beispielsweise in der Stahlherstellung, und andere.Fields of application of the invention are, in addition to solar thermal power plant technology, conventional power plant technology, heat recuperation, thermal regeneration in glass and ceramic production, Stirling engines, air heaters, for example in steelmaking, and others.
Die Vorteile der Erfindung sind die Möglichkeit der schnellen Ladung/Entladung durch Ausnutzen der Feinzelligkeit des Materials, sowie die Anwendbarkeit bei hohen Temperaturen durch Verwendung spezieller hochtemperaturbeständiger Porenmaterialien und spezieller Stoffe oder Stoffgemische als PWM.The advantages of the invention are the possibility of rapid charge / discharge by utilizing the fineness of the material, as well as the applicability at high temperatures by using special high temperature resistant pore materials and special substances or mixtures as PWM.
Gemäß einer bevorzugten Ausführungsform der Erfindung sind die Zellen parallele Kanäle in einem Körper. Die Kanäle sind an den Enden abgeschlossen. Jede der Zellen ist von weiteren Kanälen umgeben, die von einem Wärmeträgerfluid durchströmbar sind. Der Körper bildet einen keramischen Wabenkörper, bei dem die zellenbildenden Kanäle zunächst einseitig verschlossen, dann mit dem Phasenwechselmaterial verfüllt und schließlich auch an dem anderen Ende verschlossen sind. Jeder befüllte und verschlossene Kanal steht durch die Kanalwand in wärmeleitendem Kontakt mit dem benachbarten offenen durchströmbaren Kanal.According to a preferred embodiment of the invention, the cells are parallel channels in a body. The channels are closed at the ends. Each of the cells is surrounded by further channels through which a heat transfer fluid can flow. The body forms a ceramic honeycomb body in which the cell-forming channels are first closed on one side, then filled with the phase change material and finally closed at the other end. Each filled and sealed channel is in heat-conducting contact with the adjacent open channel through the channel wall.
Alternativ können die Zellen aus separaten Hohlkörpern bestehen, die ein Schüttgut bilden, wobei jeder Hohlkörper mit einem PCM gefüllt ist. Die Hohlkörper bestehen aus hochtemperaturbeständigem Material, insbesondere aus Keramik. Vorzugsweise sind sie kugelförmig. Durch die Hohlräume zwischen den Hohlkörpern entsteht ein offenporiges durchströmbaren Gerüst aus Festkörpermaterial. Je kleiner die Hohlkörper sind, desto größer ist die wärmeübertragende Oberfläche. Die Hohlkörper mit den zwischen ihnen gebildeten Poren bilden einen durchströmbaren Latentwärmespeicher.Alternatively, the cells may consist of separate hollow bodies forming a bulk material, each hollow body being filled with a PCM. The hollow bodies are made of high-temperature-resistant material, in particular of ceramic. Preferably, they are spherical. Through the cavities between the hollow bodies creates an open-pore permeable framework of solid state material. The smaller the hollow bodies are, the larger the heat transferring surface. The hollow body with the pores formed between them form a flow-through latent heat storage.
Eine wichtige Anwendung des Latentwärmespeichers ergibt sich bei der kommerziellen bzw. industriellen Stromerzeugung aus Solarenergie, wie sie beispielsweise in
Im Folgenden werden unter Bezugnahme auf die Zeichnungen Ausführungsbeispiele der Erfindung näher erläutert.In the following, embodiments of the invention will be explained in more detail with reference to the drawings.
Es zeigen:Show it:
Bei dem Ausführungsbeispiel der
Wie sich aus
In den
Die Erfindung eignet sich für die Wärmespeicherung in der Katalysatortechnik, der konventionellen Kraftwerkstechnik, insbesondere jedoch in der solarthermischen Kraftwerkstechnik, für die Wärme-Rekuperation, die Wärmeregeneration in der Glas- und Keramikherstellung, Stirlingmotoren, Lufterhitzer in der Stahlherstellung und ähnliches.The invention is suitable for heat storage in catalyst technology, conventional power plant technology, but especially in solar thermal power plant technology, for heat recuperation, heat regeneration in the glass industry. and ceramic production, Stirling engines, air heaters in steel making and the like.
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- DE 102006057845 A1 [0003] DE 102006057845 A1 [0003]
- DE 19744541 C2 [0011] DE 19744541 C2 [0011]
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE102010004358A DE102010004358A1 (en) | 2010-01-12 | 2010-01-12 | Latent heat accumulator for use as e.g. overheating protection device in open solar receiver system of solar power station, has cells are made of high temperature-steady material and limit at channel, where fluid flows through channel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE102010004358A DE102010004358A1 (en) | 2010-01-12 | 2010-01-12 | Latent heat accumulator for use as e.g. overheating protection device in open solar receiver system of solar power station, has cells are made of high temperature-steady material and limit at channel, where fluid flows through channel |
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DE102010004358A1 true DE102010004358A1 (en) | 2011-06-16 |
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DE102010004358A Ceased DE102010004358A1 (en) | 2010-01-12 | 2010-01-12 | Latent heat accumulator for use as e.g. overheating protection device in open solar receiver system of solar power station, has cells are made of high temperature-steady material and limit at channel, where fluid flows through channel |
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Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103644655A (en) * | 2013-11-04 | 2014-03-19 | 李洪伟 | Solar light condensation and storage flat plate collector |
FR2996630A1 (en) * | 2012-10-09 | 2014-04-11 | Commissariat Energie Atomique | METHOD OF MAKING A HEAT EXCHANGER CONTAINING PHASE CHANGE MATERIAL, EXCHANGER OBTAINED AND HIGH TEMPERATURE USES. |
WO2014086462A1 (en) * | 2012-12-03 | 2014-06-12 | Bernhard Sixt | Latent heat store and method for the production thereof |
CH707324A1 (en) * | 2012-12-13 | 2014-06-13 | Airlight Energy Ip Sa | A method for generating a stream of heat-transport fluid and thermal storage for the process. |
WO2015018907A1 (en) * | 2013-08-08 | 2015-02-12 | Fraunhofer Gesellschaft Zur Förderung Der Angew. Forschung E.V. | Apparatus and process for production of fermented food and drink products |
DE102014226282A1 (en) * | 2014-12-17 | 2016-06-23 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Reactor for the dehydrogenation of liquid hydrogen carrier materials |
EP3093603A4 (en) * | 2014-11-10 | 2017-09-27 | NGK Insulators, Ltd. | Container housing heat storage material |
WO2018201193A1 (en) * | 2017-05-03 | 2018-11-08 | Climate Change Technologies Pty Ltd | Thermal energy storage apparatus |
CN112934491A (en) * | 2021-01-29 | 2021-06-11 | 塔里木大学 | Separation device for producing oil from walnut endophytic bacterium HB1310 fermentation cotton stalk hydrolysis sugar liquid |
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DE3932988A1 (en) * | 1988-10-03 | 1990-04-26 | Agency Ind Science Techn | HEAT STORAGE UNIT |
DE19744541C2 (en) | 1997-10-09 | 2001-05-03 | Deutsch Zentr Luft & Raumfahrt | Solar receiver |
DE10149806C2 (en) * | 2001-10-09 | 2003-11-13 | Deutsch Zentr Luft & Raumfahrt | Solar tower power plant |
DE102006057845A1 (en) | 2005-12-15 | 2007-06-21 | Vaillant Gmbh | Heat accumulator for hot- and/or industrial water, comprises a fuel cell heat source and a heat consumer, where the heat accumulator is filled with an emulsion from water and micro-encapsulated paraffin |
EP2112451A1 (en) * | 2006-01-26 | 2009-10-28 | Nuclear Research Center-Negev | Thermal energy storage apparatus |
-
2010
- 2010-01-12 DE DE102010004358A patent/DE102010004358A1/en not_active Ceased
Patent Citations (6)
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EP0044998A1 (en) * | 1980-07-26 | 1982-02-03 | INTERATOM Internationale Atomreaktorbau GmbH | Latent heat storage unit with several storage substances |
DE3932988A1 (en) * | 1988-10-03 | 1990-04-26 | Agency Ind Science Techn | HEAT STORAGE UNIT |
DE19744541C2 (en) | 1997-10-09 | 2001-05-03 | Deutsch Zentr Luft & Raumfahrt | Solar receiver |
DE10149806C2 (en) * | 2001-10-09 | 2003-11-13 | Deutsch Zentr Luft & Raumfahrt | Solar tower power plant |
DE102006057845A1 (en) | 2005-12-15 | 2007-06-21 | Vaillant Gmbh | Heat accumulator for hot- and/or industrial water, comprises a fuel cell heat source and a heat consumer, where the heat accumulator is filled with an emulsion from water and micro-encapsulated paraffin |
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Cited By (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2996630A1 (en) * | 2012-10-09 | 2014-04-11 | Commissariat Energie Atomique | METHOD OF MAKING A HEAT EXCHANGER CONTAINING PHASE CHANGE MATERIAL, EXCHANGER OBTAINED AND HIGH TEMPERATURE USES. |
WO2014057411A2 (en) | 2012-10-09 | 2014-04-17 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | Method for manufacturing a heat exchanger containing a phase-change material, exchanger obtained and uses at high temperatures |
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WO2014086462A1 (en) * | 2012-12-03 | 2014-06-12 | Bernhard Sixt | Latent heat store and method for the production thereof |
CH707324A1 (en) * | 2012-12-13 | 2014-06-13 | Airlight Energy Ip Sa | A method for generating a stream of heat-transport fluid and thermal storage for the process. |
WO2014089717A1 (en) * | 2012-12-13 | 2014-06-19 | Airlight Energy Ip Sa | Method and apparatus for producing a stream of heat-transporting fluid |
WO2015018907A1 (en) * | 2013-08-08 | 2015-02-12 | Fraunhofer Gesellschaft Zur Förderung Der Angew. Forschung E.V. | Apparatus and process for production of fermented food and drink products |
CN103644655B (en) * | 2013-11-04 | 2015-09-09 | 李洪伟 | Salar light-gathering stores flat plate collector |
CN103644655A (en) * | 2013-11-04 | 2014-03-19 | 李洪伟 | Solar light condensation and storage flat plate collector |
EP3093603A4 (en) * | 2014-11-10 | 2017-09-27 | NGK Insulators, Ltd. | Container housing heat storage material |
US10359236B2 (en) | 2014-11-10 | 2019-07-23 | Ngk Insulators, Ltd. | Heat storage material container |
DE102014226282A1 (en) * | 2014-12-17 | 2016-06-23 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Reactor for the dehydrogenation of liquid hydrogen carrier materials |
US10618808B2 (en) | 2014-12-17 | 2020-04-14 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Catalyst support, recycle reactor and method for releasing hydrogen |
WO2018201193A1 (en) * | 2017-05-03 | 2018-11-08 | Climate Change Technologies Pty Ltd | Thermal energy storage apparatus |
AU2018262109B2 (en) * | 2017-05-03 | 2019-09-19 | Climate Change Technologies Pty Ltd | Thermal energy storage apparatus |
US11067344B2 (en) | 2017-05-03 | 2021-07-20 | Climate Change Technologies Pty Ltd. | Thermal energy storage apparatus |
AU2018262109C1 (en) * | 2017-05-03 | 2022-12-15 | Climate Change Technologies Pty Ltd | Thermal energy storage apparatus |
CN112934491A (en) * | 2021-01-29 | 2021-06-11 | 塔里木大学 | Separation device for producing oil from walnut endophytic bacterium HB1310 fermentation cotton stalk hydrolysis sugar liquid |
CN112934491B (en) * | 2021-01-29 | 2022-05-24 | 塔里木大学 | Separation device for producing oil from walnut endophytic bacterium HB1310 fermentation cotton stalk hydrolysis sugar liquid |
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