DE102012218381A1 - Latent heat storage and its use - Google Patents
Latent heat storage and its use Download PDFInfo
- Publication number
- DE102012218381A1 DE102012218381A1 DE102012218381.7A DE102012218381A DE102012218381A1 DE 102012218381 A1 DE102012218381 A1 DE 102012218381A1 DE 102012218381 A DE102012218381 A DE 102012218381A DE 102012218381 A1 DE102012218381 A1 DE 102012218381A1
- Authority
- DE
- Germany
- Prior art keywords
- heat
- section
- outlet
- heat transfer
- chamber
- 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.)
- Ceased
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M5/00—Heating, cooling, or controlling temperature of lubricant; Lubrication means facilitating engine starting
- F01M5/001—Heating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H1/00—Heating, cooling or ventilating [HVAC] devices
- B60H1/00492—Heating, cooling or ventilating [HVAC] devices comprising regenerative heating or cooling means, e.g. heat accumulators
-
- 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
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/14—Indicating devices; Other safety devices
- F01P2011/205—Indicating devices; Other safety devices using heat-accumulators
-
- 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
- F28D2020/0004—Particular heat storage apparatus
- F28D2020/0013—Particular heat storage apparatus the heat storage material being enclosed in elements attached to or integral with heat exchange conduits
-
- 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
-
- 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
Es wird ein Latentwärmespeicher (30) zum Speichern einer von einem Wärmeübertragungsfluid entzogenen Wärmeenergie mittels eines Wärmespeichermediums vorgeschlagen. Der Latentwärmespeicher (30) ist mit einer einen Einlass (33) und einen Auslass (34) aufweisenden Kammer (32) ausgeführt, die vom Einlass (33) zum Auslass (34) hin vom Wärmeübertragungsfluid durchströmbar ist und in der eine Wärmeübertragung zwischen dem Wärmeübertragungsfluid und dem Wärmespeichermedium und eine reversible Wärmeübertragung vom Wärmespeichermedium auf das Wärmeübertragungsfluid stattfindet. Die Kammer (32) weist einen in den Auslass (34) mündenden Fluid-Sammelbereich (36) auf, derart, dass ein gravimetrisches Abfließen des Wärmeübertragerfluids aus der Kammer (32) gewährleistet ist.A latent heat store (30) is proposed for storing a heat energy extracted from a heat transfer fluid by means of a heat storage medium. The latent heat store (30) is designed with a chamber (32) having an inlet (33) and an outlet (34), through which the heat transfer fluid can flow from the inlet (33) to the outlet (34) and in which heat transfer between the heat transfer fluid and the heat storage medium and a reversible heat transfer from the heat storage medium to the heat transfer fluid takes place. The chamber (32) has a fluid collection area (36) opening into the outlet (34) in such a way that gravimetric flow of the heat transfer fluid out of the chamber (32) is ensured.
Description
Die Erfindung betrifft einen Latentwärmespeicher und dessen Verwendung gemäß dem Oberbegriff des Anspruchs 1.The invention relates to a latent heat accumulator and its use according to the preamble of claim 1.
Es ist bekannt, Latentwärmespeicher auch in Kraftfahrzeugen einzusetzen, um die von einer Verbrennungskraftmaschine erzeugte überschüssige Wärme zu speichern, und sie später bei einem Kaltstart der Verbrennungskraftmaschine der Verbrennungskraftmaschine oder anderen Systemen des Kraftfahrzeuges wieder zur Verfügung zu stellen.It is known to use latent heat storage in motor vehicles to store the excess heat generated by an internal combustion engine, and later make them available again during a cold start of the internal combustion engine of the internal combustion engine or other systems of the motor vehicle.
Latentwärmespeicher nutzen dabei das bekannte Wirkprinzip, bei dem die Enthalpie reversibler thermodynamischer Zustandsänderungen eines Wärmespeichermediums ausgenutzt wird. Solche Wärmespeichermedien sind beispielsweise diverse Salze oder Paraffine, die beim Schmelzen sehr viel Wärmeenergie aufnehmen und bei einem Phasenwechsel von flüssig nach fest die Schmelzwärme wieder freisetzen. Latent heat storage thereby use the known operating principle, in which the enthalpy of reversible thermodynamic state changes of a heat storage medium is utilized. Such heat storage media are, for example, various salts or paraffins, which absorb a great deal of heat energy during melting and release the heat of fusion again during a phase change from liquid to solid.
Die bekannten Latentwärmespeicher sind wie ein Wärmetauscher aufgebaut, in welchem auf der einen Seite das Wärmespeichermedium eingeschlossen ist und welcher auf der anderen Seite von einem wärmeliefernden bzw. wärmeentziehenden Wärmeübertragungsfluid durchströmt wird. The known latent heat storage are constructed as a heat exchanger in which on one side of the heat storage medium is enclosed and which is flowed through on the other side of a heat-delivering or heat-extracting heat transfer fluid.
Aus
Aus
Offenbarung der ErfindungDisclosure of the invention
Die vorliegende Erfindung mit den kennzeichnenden Merkmalen des Anspruchs 1 hat den Vorteil, dass das Wärmeübertragungsfluid bei einem Austausch sicher und vollständig aus der Kammer des Latentwärmespeichers abläuft.The present invention with the characterizing features of claim 1 has the advantage that the heat transfer fluid in a replacement safely and completely expires from the chamber of the latent heat accumulator.
Vorteilhafte Weiterbildungen und Verbesserungen der Erfindung sind durch die Maßnahmen der Unteransprüche möglich.Advantageous developments and improvements of the invention are possible by the measures of the subclaims.
Ein gravimetrisches Abfließen des Wärmeübertragungsfluids aus der Kammer des Latentwärmespeichers wird gewährleistet, wenn der Fluid-Sammelbereich von zumindest einem zum Auslass hin geneigten Abschnitt eines Bodens der Kammer gebildet ist. Der geneigte Abschnitt kann dabei im Wesentlichen von der gesamten Bodenfläche eines kontinuierlich geneigten Bodens der Kammer gebildet sein, an dessen tiefster Stelle der Auslass angeordnet ist. Eine andere Ausführungsform besteht darin, wenn mindestens zwei zueinander geneigt verlaufende Bodenabschnitte vorgesehen sind, die an einer tiefsten Stelle zusammenstoßen und dort im Boden der Kammer eine Senke bilden, die den Fluid-Sammelbereich mit dem an der tiefsten Stelle angeordneten Auslass bildet. A gravimetric outflow of the heat transfer fluid from the chamber of the latent heat accumulator is ensured when the fluid collection region is formed by at least one portion of a bottom of the chamber which slopes towards the outlet. The inclined portion may be substantially formed by the entire bottom surface of a continuously inclined bottom of the chamber, at the lowest point of the outlet is arranged. Another embodiment is when at least two mutually inclined bottom portions are provided, which collide at a deepest point and there form a depression in the bottom of the chamber, which forms the fluid collecting area with the arranged at the lowest point outlet.
Eine weitere Ausführungsform besteht darin, wenn die Kammer des Latentwärmespeichers einen Einlassabschnitt, einen Auslassabschnitt und dazwischen mindestens einen vom Einlassabschnitt zum Auslassabschnitt hin geneigt verlaufenden Wärmetauscherabschnitt aufweist. Der Fluid-Sammelbereich wird hierbei von einem am Auslassabschnitt angeordneten Bodenabschnitt gebildet, an dem der Auslass angeordnet ist, wobei der Bodenabschnitt am Auslassabschnitt gegenüber einem am Einlassabschnitt ausgebildeten weiteren Bodenabschnitt tiefer liegt. Dabei kann der Wärmetauscherabschnitt aus mehreren Wärmetauscherrohren oder Wärmetauscherprofilen ausgeführt sein, wobei das Wärmespeichermedium dem Wärmetauscherabschnitt zugeordnet ist. A further embodiment consists in that the chamber of the latent heat accumulator has an inlet section, an outlet section and therebetween at least one heat exchanger section extending inclined from the inlet section to the outlet section. In this case, the fluid collecting region is formed by a bottom section arranged at the outlet section, on which the outlet is arranged, the bottom section being lower at the outlet section than a further bottom section formed at the inlet section. In this case, the heat exchanger section may be made of a plurality of heat exchanger tubes or heat exchanger profiles, wherein the heat storage medium is associated with the heat exchanger section.
Das Ablaufen des Wärmeübertragungsfluids aus der Kammer des Latentwärmespeichers wird verbessert, indem die Oberfläche zumindest des Fluid-Sammelbereiches mit einem Material mit geringer Oberflächenspannung beschichtet ist. The drainage of the heat transfer fluid from the latent heat storage chamber is enhanced by coating the surface of at least the fluid collection region with a low surface tension material.
Der Latentwärmespeicher lässt sich in einem Ölkreislauf einer Verbrennungskraftmaschine integrieren, um bei einem Ölwechsel ein sicheres Entleeren des Motoröls zu gewährleisten. The latent heat accumulator can be integrated in an oil circuit of an internal combustion engine to ensure safe emptying of the engine oil during an oil change.
Weiterhin lässt sich der Latentwärmespeicher in einen Kühlkreislauf einer Verbrennungskraftmaschine integrieren, um bei einem Wechsel des Kühlmittels ein sicheres Entleeren des Kühlmittels zu gewährleisten.Furthermore, the latent heat storage can be integrated into a cooling circuit of an internal combustion engine to ensure a safe emptying of the coolant at a change of the coolant.
Ausführungsbeispiele embodiments
Ausführungsbeispiele der Erfindung sind in der Zeichnung dargestellt und in der nachfolgenden Beschreibung näher erläutert.Embodiments of the invention are illustrated in the drawings and explained in more detail in the following description.
Es zeigen:Show it:
Der in
Der in
Der Latentwärmespeicher
Das Wärmespeicherelement
Das Wärmeübertragungsfluid
Am Beispiel des Ölkreislaufes einer Verbrennungskraftmaschine wird das von der Verbrennungskraftmaschine erwärmte Motoröl als Wärmeübertragungsfluid
Verschiedene Ausführungsformen des Latentwärmespeichers
Bei der Ausführungsform gemäß
Bei der Ausführungsform gemäß
Bei der Ausführungsform in
Zweckmäßig ist es, wenn die Kammer
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 2916216 A1 [0005] DE 2916216 A1 [0005]
- DE 102008013655 A1 [0006] DE 102008013655 A1 [0006]
Claims (9)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012218381.7A DE102012218381A1 (en) | 2012-10-09 | 2012-10-09 | Latent heat storage and its use |
PCT/EP2013/070842 WO2014056855A1 (en) | 2012-10-09 | 2013-10-07 | Latent heat store and use thereof |
EP13773756.5A EP2906790A1 (en) | 2012-10-09 | 2013-10-07 | Latent heat store and use thereof |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012218381.7A DE102012218381A1 (en) | 2012-10-09 | 2012-10-09 | Latent heat storage and its use |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102012218381A1 true DE102012218381A1 (en) | 2014-04-10 |
Family
ID=49304975
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102012218381.7A Ceased DE102012218381A1 (en) | 2012-10-09 | 2012-10-09 | Latent heat storage and its use |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP2906790A1 (en) |
DE (1) | DE102012218381A1 (en) |
WO (1) | WO2014056855A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3058209A1 (en) * | 2016-10-27 | 2018-05-04 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | THERMAL STORAGE SYSTEM WITH PHASE CHANGE MATERIAL |
FR3116327A1 (en) * | 2020-11-17 | 2022-05-20 | Novares France | Installation for heating a fluid of a vehicle component |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB201522732D0 (en) | 2015-12-23 | 2016-02-03 | Castrol Ltd | Apparatus |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2916216A1 (en) | 1979-04-21 | 1980-11-06 | Bosch Gmbh Robert | Preheating system for IC engine - stores waste heat as latent heat and uses salt solution changing from crystalline to liquid form releasing heat to oil circuit |
DE3245027A1 (en) * | 1982-12-06 | 1984-06-07 | Oskar Dr.-Ing. 8035 Gauting Schatz | PCM device, in particular for use in motor vehicles |
EP0697230A1 (en) * | 1994-08-17 | 1996-02-21 | Eduard Kirschmann | Method and apparatus for vapourization heat transfer |
DE29602990U1 (en) * | 1995-02-06 | 1996-04-04 | Vaillant Joh Gmbh & Co | Water heater |
WO2009101398A1 (en) * | 2008-02-11 | 2009-08-20 | Artica Technologies Limited | Pcm modules/packs/pcm arrangements |
DE102008013655A1 (en) | 2008-03-11 | 2009-09-17 | Daimler Ag | Latent heat accumulator operating method for oil circulation system of internal-combustion engine in motor vehicle, involves supplying oil heated by accumulator to engine and returning oil to engine based on temperature of withdrawn oil |
DE102011017764A1 (en) * | 2011-04-29 | 2012-10-31 | Robert Bosch Gmbh | Heat accumulator system for internal combustion engine e.g. petrol engine, of motor car, has discharge circuit closed via heat accumulator and combustion engine, where discharge circuit and charging circuit are decoupled from each other |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3317205A1 (en) * | 1983-05-11 | 1984-11-15 | Wolfgang Dr.-Ing. 7951 Warthausen Molt | Device for preheating motor vehicles |
JPS6125910A (en) * | 1984-07-16 | 1986-02-05 | Nissan Motor Co Ltd | Boiling medium cooling device in engine |
DE4105199A1 (en) * | 1991-02-20 | 1992-08-27 | Bayerische Motoren Werke Ag | Cooling circuit for combustion engine - uses latent heat storage unit |
JPH0933185A (en) * | 1995-05-16 | 1997-02-07 | Denso Corp | Heat storage unit with stirring function |
DE102004048074A1 (en) * | 2004-10-02 | 2006-04-06 | Robert Bosch Gmbh | Method and device for regulating the temperature of an operating fluid and / or components |
-
2012
- 2012-10-09 DE DE102012218381.7A patent/DE102012218381A1/en not_active Ceased
-
2013
- 2013-10-07 EP EP13773756.5A patent/EP2906790A1/en not_active Withdrawn
- 2013-10-07 WO PCT/EP2013/070842 patent/WO2014056855A1/en active Application Filing
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2916216A1 (en) | 1979-04-21 | 1980-11-06 | Bosch Gmbh Robert | Preheating system for IC engine - stores waste heat as latent heat and uses salt solution changing from crystalline to liquid form releasing heat to oil circuit |
DE3245027A1 (en) * | 1982-12-06 | 1984-06-07 | Oskar Dr.-Ing. 8035 Gauting Schatz | PCM device, in particular for use in motor vehicles |
EP0697230A1 (en) * | 1994-08-17 | 1996-02-21 | Eduard Kirschmann | Method and apparatus for vapourization heat transfer |
DE29602990U1 (en) * | 1995-02-06 | 1996-04-04 | Vaillant Joh Gmbh & Co | Water heater |
WO2009101398A1 (en) * | 2008-02-11 | 2009-08-20 | Artica Technologies Limited | Pcm modules/packs/pcm arrangements |
DE102008013655A1 (en) | 2008-03-11 | 2009-09-17 | Daimler Ag | Latent heat accumulator operating method for oil circulation system of internal-combustion engine in motor vehicle, involves supplying oil heated by accumulator to engine and returning oil to engine based on temperature of withdrawn oil |
DE102011017764A1 (en) * | 2011-04-29 | 2012-10-31 | Robert Bosch Gmbh | Heat accumulator system for internal combustion engine e.g. petrol engine, of motor car, has discharge circuit closed via heat accumulator and combustion engine, where discharge circuit and charging circuit are decoupled from each other |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3058209A1 (en) * | 2016-10-27 | 2018-05-04 | Commissariat A L'energie Atomique Et Aux Energies Alternatives | THERMAL STORAGE SYSTEM WITH PHASE CHANGE MATERIAL |
FR3116327A1 (en) * | 2020-11-17 | 2022-05-20 | Novares France | Installation for heating a fluid of a vehicle component |
Also Published As
Publication number | Publication date |
---|---|
WO2014056855A1 (en) | 2014-04-17 |
EP2906790A1 (en) | 2015-08-19 |
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