DE102012000225A1 - Device, used to store latent and sensitive heat in buildings for heating water, comprises a cuboid-shaped container filled with heat storage material of salt hydrate whose latent heat in phase transition is stored in solid/liquid medium - Google Patents
Device, used to store latent and sensitive heat in buildings for heating water, comprises a cuboid-shaped container filled with heat storage material of salt hydrate whose latent heat in phase transition is stored in solid/liquid medium Download PDFInfo
- Publication number
- DE102012000225A1 DE102012000225A1 DE201210000225 DE102012000225A DE102012000225A1 DE 102012000225 A1 DE102012000225 A1 DE 102012000225A1 DE 201210000225 DE201210000225 DE 201210000225 DE 102012000225 A DE102012000225 A DE 102012000225A DE 102012000225 A1 DE102012000225 A1 DE 102012000225A1
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- Germany
- Prior art keywords
- heat storage
- storage material
- latent heat
- plates
- ferrous metal
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/02—Materials undergoing a change of physical state when used
- C09K5/06—Materials undergoing a change of physical state when used the change of state being from liquid to solid or vice versa
- C09K5/063—Materials absorbing or liberating heat during crystallisation; Heat storage materials
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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
- F28D20/021—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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
- F28F21/02—Constructions of heat-exchange apparatus characterised by the selection of particular materials of carbon, e.g. graphite
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2270/00—Thermal insulation; Thermal decoupling
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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
Abstract
Description
Die Erfindung betrifft eine Vorrichtung zur Speicherung von sensibler und latenter Wärme, vorzugsweise für die Anwendung in Gebäuden zur Warmwasserbereitung und für Heizungzwecke.The invention relates to a device for storing sensible and latent heat, preferably for use in buildings for hot water and for heating purposes.
Es ist bekannt, dass zur Speicherung von Wärme der Phasenwechsel fest/flüssig eines Speichermediums, eines sogenannten Latentwärmespeichermaterials (PCM, Phase Change Material) genutzt wird. Im Schmelzprozess wird latente Wärme gespeichert, welche beim Erstarren wieder abgegeben wird. Diese Vorgänge verlaufen nahezu isotherm und reversibel. Für den Temperaturbereich des genannten Anwendungsgebiets werden insbesondere Paraffine (organische PCM) und Salzhydrate (anorganische PCM) verwendet, da deren Schmelzpunkte unterhalb von 100°C liegen.It is known that the storage of heat, the phase change solid / liquid of a storage medium, a so-called latent heat storage material (PCM, phase change material) is used. In the melting process, latent heat is stored, which is released again during solidification. These processes are almost isothermal and reversible. In particular, paraffins (organic PCM) and salt hydrates (inorganic PCM) are used for the temperature range of the stated field of application, since their melting points are below 100 ° C.
Die Paraffine zeichnen sich durch eine hohe Zyklenstabiliät aus, d. h. sie können sehr viele Phasenwechsel durchlaufen, ohne dass sich ihre thermischen Eigenschaften verändern. Sie sind nicht korrosiv, weisen jedoch aufgrund der niedrigen Dichten und vergleichsweise kleinen Schmelzenthalpien nur geringe Speicherdichten von maximal 200 MJ/m3 auf. Salzhydrate hingegen erreichen bis zu dreimal höhere Energiedichten. Allerdings haben sie eine hohe Korrosivität und sind teilweise nur bedingt zyklenstabil. Anders als die organischen Latentwärmespeichermaterialien neigen Salzhydrate zur Unterkühlung. Unterhalb ihres Kristallisationspunktes können sie als unterkühlte Schmelze vorliegen. Der Vorteil dabei ist, dass die Kristallisation und damit die Freisetzung der latenten Wärme im Bedarfsfall mit Hilfsmitteln gezielt ausgelöst werden kann.The paraffins are characterized by a high cycle stability, ie they can go through many phase changes, without changing their thermal properties. They are not corrosive, but due to the low densities and comparatively small enthalpies of fusion they have only low storage densities of up to 200 MJ / m 3 . Salt hydrates, however, achieve up to three times higher energy densities. However, they have a high degree of corrosivity and are in part only partially stable to the cycles. Unlike organic latent heat storage materials, salt hydrates tend to overcool. Below their crystallization point they can be present as supercooled melt. The advantage here is that the crystallization and thus the release of latent heat in case of need can be specifically triggered with tools.
Aus der Patentschrift
Für Latentwärmespeicherbehälter ist es Stand der Technik Graphit als wärmeleitendes, korrosionsbeständiges Material zu verwenden. Beispielhaft sei hierfür das Patent
Als Alternative zu Behälterwänden aus Graphit ist in der Patentschrift
Die Gebrauchsmusterschrift
Die genannten Lösungen sind mit wesentlichen Nachteilen behaftet.The solutions mentioned are associated with significant disadvantages.
Der Nachteil der Lösung aus der Patentschrift
Die Nachteile der Patentschrift
Aufgabe der Erfindung ist es, eine Vorrichtung zu entwickeln, die die Nutzung verschiedener, stark korrosiver Latentwärmespeichermaterialien, insbesondere Salzhydrate, ermöglicht und dabei eine lange Nutzungsdauer aufweist sowie in der Fertigung wirtschaftlich günstig ist. Darüberhinaus sind weitere, zuvor genannte Nachteile des Standes der Technik zu beseitigen.The object of the invention is to develop a device that allows the use of different, highly corrosive latent heat storage materials, in particular salt hydrates, while having a long service life and is economically advantageous in manufacturing. Moreover, further, aforementioned disadvantages of the prior art are to be eliminated.
Die Aufgabe wird dadurch gelöst, dass ein Latentwärmespeicher aus einem geschlossenen vorzugsweise quaderförmigen, mit einem Latentwärmespeichermaterial gefüllten Behälter
Die Vorteile der Erfindung liegen vor allem darin, dass die Verwendung von Latentwärmespeichermaterialien mit den höchsten Wärmespeichervermögen bezogen auf das Speichervolumen ermöglicht wird. Die Wahl der Elastomerfolie kann nach der chemischen Beständigkeit des Latentwärmespeichermaterials vorgenommen werden und ist im Reparaturfall einfach ersetzbar. Die verwendete Materialien der mehrschichtigen Behälterwand haben die erforderlichen funktionserfüllenden Eigenschaften und ermöglichen eine lange Nutzungsdauer. Graphit ist für seine chemische Beständigkeit, seine sehr gute Wärmeleitfähigkeit und Langlebigkeit bekannt. Elastomere, wie beispielsweise Ethylen-Propylen-Dien-Kautschuk (EPDM), sind chemisch gegen Latentwärmespeichermaterialien, insbesondere vielen Salzhydraten bei den gebräuchlichen Temperaturen im Gebäudebereich beständig, sind flüssigkeits- und gasdicht, lassen sich in sehr dünnen Folien herstellen, passen sich dadurch verschiedenen Oberflächen elastisch an und sind alterungsbeständig. Nichteisenmetalle, wie beispielsweise Reinaluminium, haben eine sehr gute Wärmeleitfähigkeit, bilden eine langlebige, schützende Oxidschicht und lassen sich im Strangpressverfahren wirtschaftlich günstig zu einem Halbzeug vorfertigen. Ebenso ist die Langlebigkeit der Wärmedämmstoffe, wie beispielsweise Polyurethanschaum, aus der Gebäudedämmung bekannt. Vorteilhaft ist weiterhin, dass die genannten Bestandteile der Behälterwand (Graphitplatten, Nichteisenmetallplatten, Wärmedämmplatten) wiederverwendbar sind und damit die Wiederaufbereitung des Latentwärmespeichers zur Neunutzung möglich ist. Zudem lässt der einfache Aufbau des Latentwärmespeichers eine Serienproduktion (Fertigung in großen Stückzahlen) zu, welche große wirtschaftliche Vorteile schafft.The advantages of the invention are, above all, that the use of latent heat storage materials with the highest heat storage capacity based on the storage volume is made possible. The choice of elastomeric film can be made according to the chemical resistance of the latent heat storage material and is easily replaceable in case of repair. The materials used in the multi-layered container wall have the required function-filling properties and allow a long service life. Graphite is known for its chemical resistance, very good thermal conductivity and longevity. Elastomers, such as ethylene-propylene-diene rubber (EPDM), are chemically resistant to latent heat storage materials, especially many salt hydrates at the usual temperatures in the building sector, are liquid and gas tight, can be produced in very thin films, thereby adapting to different surfaces elastic and resistant to aging. Non-ferrous metals, such as pure aluminum, have a very good thermal conductivity, form a long-lasting, protective oxide layer and can be prefabricated in the extrusion process economically favorable to a semi-finished product. Likewise, the longevity of the thermal insulation materials, such as polyurethane foam, from the building insulation is known. A further advantage is that the said components of the container wall (graphite plates, non-ferrous metal plates, thermal insulation panels) are reusable and thus the reprocessing of the latent heat storage for reuse is possible. In addition, the simple design of the latent heat storage allows for mass production (high volume production), which creates great economic benefits.
Ein weiterer Vorteil ergibt sich aus der Quaderform in Verbindung mit der hohen Speicherdichte, wodurch bei der räumlichen Anordnung mehrerer Latentwärmespeicher eine optimale Raumausnutzung realisiert wird.Another advantage results from the cuboid shape in conjunction with the high storage density, whereby an optimal space utilization is realized in the spatial arrangement of multiple latent heat storage.
Die Erfindung wird im folgenden anhand von Zeichnungen beschrieben, in der vorteilhafte Ausführungsbeispiele dargestellt sind.The invention will be described below with reference to drawings in which advantageous embodiments are shown.
Es zeigen:Show it:
In
Die Wand des Behälters
Die innere Schicht der Behälterwand, die aus Graphitplatten
Auf der Elastomerfolie
Die äußere Schicht der Wand des Behälters
Der Vollschnitt in
BezugszeichenlisteLIST OF REFERENCE NUMBERS
- 11
- Behältercontainer
- 22
- Graphitplattegraphite plate
- 33
- Elastomerfolieelastomeric film
- 44
- NichteisenmetallplatteNon-ferrous metal plate
- 55
- Wärmedämmplattethermal insulation board
- 66
- Sammel- und VerteilerblockCollection and distribution block
- 77
- Anschlüsseconnections
- 88th
- Verschlussshutter
- 99
- Wärmeleitelementeheat-conducting elements
- 1010
- LatentwärmespeichermaterialLatent heat storage material
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 102009034772 A1 [0004, 0009] DE 102009034772 A1 [0004, 0009]
- DE 3905707 C1 [0005] DE 3905707 C1 [0005]
- DE 19937730 C1 [0005, 0010] DE 19937730 C1 [0005, 0010]
- DE 10345115 A1 [0006, 0010] DE 10345115 A1 [0006, 0010]
- DE 202007008684 U1 [0007, 0010] DE 202007008684 U1 [0007, 0010]
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201210000225 DE102012000225A1 (en) | 2012-01-07 | 2012-01-07 | Device, used to store latent and sensitive heat in buildings for heating water, comprises a cuboid-shaped container filled with heat storage material of salt hydrate whose latent heat in phase transition is stored in solid/liquid medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE201210000225 DE102012000225A1 (en) | 2012-01-07 | 2012-01-07 | Device, used to store latent and sensitive heat in buildings for heating water, comprises a cuboid-shaped container filled with heat storage material of salt hydrate whose latent heat in phase transition is stored in solid/liquid medium |
Publications (1)
Publication Number | Publication Date |
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DE102012000225A1 true DE102012000225A1 (en) | 2013-07-11 |
Family
ID=48652448
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE201210000225 Withdrawn DE102012000225A1 (en) | 2012-01-07 | 2012-01-07 | Device, used to store latent and sensitive heat in buildings for heating water, comprises a cuboid-shaped container filled with heat storage material of salt hydrate whose latent heat in phase transition is stored in solid/liquid medium |
Country Status (1)
Country | Link |
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DE (1) | DE102012000225A1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015173441A1 (en) * | 2014-05-14 | 2015-11-19 | Universitat Politècnica De Catalunya | Heat energy accumulator based on solid-liquid phase-change materials, and method for producing the unit |
WO2019034980A1 (en) * | 2017-08-14 | 2019-02-21 | Global Energy Storage Technology Fzc | High ratio latent energy device and methods thereof |
CN114214039A (en) * | 2022-01-07 | 2022-03-22 | 中国建筑材料科学研究总院有限公司 | Hydrated salt porous material composite phase-change plate and preparation method thereof |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19937730C1 (en) | 1999-08-10 | 2000-07-13 | Deutsch Zentr Luft & Raumfahrt | High temperature latent heat storage device, especially for use in space, comprises graphite or ceramic container brazed to lid by a gold- or copper-based active brazing material |
DE10345115A1 (en) | 2003-09-26 | 2005-05-12 | Bosch Gmbh Robert | Latent heat storage device for e.g. heating homes, has individual heat storage units contained inside pressure vessel |
DE202007008684U1 (en) | 2007-06-21 | 2007-09-06 | Wenzel, Jutta | Latent heat cell |
DE102009034772A1 (en) | 2009-07-25 | 2011-01-27 | K-Utec Ag Salt Technologies | Latent heat storage device, useful for stationary and mobile applications for storage of excess heat from heating source, comprises corrosion-resistant storage container with external insulation, heat exchanger and heat storage materials |
-
2012
- 2012-01-07 DE DE201210000225 patent/DE102012000225A1/en not_active Withdrawn
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19937730C1 (en) | 1999-08-10 | 2000-07-13 | Deutsch Zentr Luft & Raumfahrt | High temperature latent heat storage device, especially for use in space, comprises graphite or ceramic container brazed to lid by a gold- or copper-based active brazing material |
DE10345115A1 (en) | 2003-09-26 | 2005-05-12 | Bosch Gmbh Robert | Latent heat storage device for e.g. heating homes, has individual heat storage units contained inside pressure vessel |
DE202007008684U1 (en) | 2007-06-21 | 2007-09-06 | Wenzel, Jutta | Latent heat cell |
DE102009034772A1 (en) | 2009-07-25 | 2011-01-27 | K-Utec Ag Salt Technologies | Latent heat storage device, useful for stationary and mobile applications for storage of excess heat from heating source, comprises corrosion-resistant storage container with external insulation, heat exchanger and heat storage materials |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2015173441A1 (en) * | 2014-05-14 | 2015-11-19 | Universitat Politècnica De Catalunya | Heat energy accumulator based on solid-liquid phase-change materials, and method for producing the unit |
EP3147618A4 (en) * | 2014-05-14 | 2018-04-25 | Universitat Politècnica De Catalunya | Heat energy accumulator based on solid-liquid phase-change materials, and method for producing the unit |
WO2019034980A1 (en) * | 2017-08-14 | 2019-02-21 | Global Energy Storage Technology Fzc | High ratio latent energy device and methods thereof |
CN114214039A (en) * | 2022-01-07 | 2022-03-22 | 中国建筑材料科学研究总院有限公司 | Hydrated salt porous material composite phase-change plate and preparation method thereof |
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R086 | Non-binding declaration of licensing interest | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |