WO2021009629A1 - Accumulateur de chaleur pourvu de matériau à changement de phase - Google Patents

Accumulateur de chaleur pourvu de matériau à changement de phase Download PDF

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Publication number
WO2021009629A1
WO2021009629A1 PCT/IB2020/056477 IB2020056477W WO2021009629A1 WO 2021009629 A1 WO2021009629 A1 WO 2021009629A1 IB 2020056477 W IB2020056477 W IB 2020056477W WO 2021009629 A1 WO2021009629 A1 WO 2021009629A1
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WO
WIPO (PCT)
Prior art keywords
phase change
change material
volume
wall
container
Prior art date
Application number
PCT/IB2020/056477
Other languages
German (de)
English (en)
Inventor
Roland Diethelm
Erhard Krumpholz
Thomas Schneider
Christian LEFFERING
Renato Götz
Steffen PORSCHE
Original Assignee
Zehnder Group International Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Zehnder Group International Ag filed Critical Zehnder Group International Ag
Publication of WO2021009629A1 publication Critical patent/WO2021009629A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D20/02—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat
    • F28D20/021—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using latent heat the latent heat storage material and the heat-exchanging means being enclosed in one container
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • 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
    • F28D15/00—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies
    • F28D15/02—Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls ; Heat-exchange apparatus employing intermediate heat-transfer medium or bodies in which the medium condenses and evaporates, e.g. heat pipes
    • 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
    • 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
    • F28D20/025—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 in direct contact with a heat-exchange medium or with another heat storage material
    • 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

Definitions

  • the invention relates to a device for absorbing, storing and releasing heat, which comes for example from a solar collector or a power / heat coupling system.
  • Solid / liquid systems are particularly popular, such as ice stores (frozen / thawed water), wax stores (solidified / melted wax),
  • Paraffin storage solidified / melted paraffin
  • the melting temperatures or melting temperature ranges of such solid / liquid systems can be adjusted over a wide range through the choice of molecules (length of the carbon chains, degree of branching, presence of polar groups, etc.) or by mixing different types of molecules. For example, melting temperatures, i.e. phase change storage operating temperatures of 0 ° C (ice storage), of around 30 to 60 ° C
  • phase change storage in buildings, in particular in connection with solar thermal energy and with storage temperatures of on the one hand, for example 30 ° C and on the other hand, for example 80 ° C Heat storage can be used for a period of several weeks. Seasonal storage of heat is only possible here to a limited extent and, if so, then only with a high level of expenditure on heat insulation measures for the storage tank.
  • the invention is therefore based on the object of enabling long-term, in particular and at least seasonal, storage of heat.
  • the invention provides a device for absorbing, storing and releasing heat, wherein the device occupies a volume which
  • phase change material has a heat transfer fluid volume area through which at least one heat transfer fluid can flow and a phase change material volume area containing a phase change material, the phase change material having a reversible phase change between a phase change temperature TW at a phase change temperature TW
  • Phase change temperature TW can pass through existing second state of the phase change material, and wherein the heat transfer fluid volume area adjoins the phase change material volume area via interfaces, characterized in that the two volume areas are arranged in a container which has a container inner wall facing the volume areas, one of has the outer wall of the container facing away from the volume regions and a thermally insulating insulation region arranged between the inner wall of the container and the outer wall of the container.
  • the thermal insulation area between the inner wall of the container and the outer wall of the container ensures that between the medium surrounding the device
  • thermal energy typically air
  • the device expediently contains one of a first heat transfer fluid
  • the permeable second volume area as well as a third volume area containing at least one phase change material, the first volume area adjoining the third volume area via first interfaces and the second volume area adjoining the third volume area via second interfaces, the three volume areas being arranged in a container, which one to has the inner wall of the container facing the volume regions, an outer container wall facing away from the volume regions and a thermally insulating insulation region arranged between the inner wall of the container and the outer wall of the container.
  • Phase change material in the third volume area and on the other hand a supply or removal of heat through the second interfaces from the second heat transfer fluid in the second volume area to the phase change material in the third volume area.
  • the device can thus be “charged” (heat supply) or “discharged” (heat dissipation).
  • the isolation area preferably contains an evacuated volume.
  • Phase change material inside the device minimized to the outside. This is also relevant for the use of the device for heating when the temperature of the phase change material is higher than the ambient temperature.
  • At least the inner wall of the container facing the volume areas preferably has a melting temperature (e.g. for metal or thermoplastic) or decomposition temperature (e.g. for thermoset) which is higher than the phase change temperature of the phase change material, preferably more than 20K higher and particularly preferably around more than 40K higher.
  • a melting temperature e.g. for metal or thermoplastic
  • decomposition temperature e.g. for thermoset
  • the second state of the phase change material is expediently more energetic than the first state of the phase change material.
  • the phase change material is in its first state as a solid or in a solidified state and in its second state as a liquid or in a molten state.
  • phase change material Preferably that is used here
  • Phase change material enclosed in a capsule the melting temperature of which is above the melting temperature of the phase change material.
  • the cavity of the capsule is preferably only partially filled with the phase change material. This causes a change in volume of the
  • phase change material harmless to the capsule during phase change.
  • the phase change material is in its first state as a solid with a first material structure or first crystal structure and in its second state as a solid with a second material structure or second crystal structure.
  • phase change material During the transition between the first state and the second state, there is only a very slight change in volume of the phase change material. This can also be used here
  • Phase change material be enclosed in a capsule, the melting temperature of which is above the phase change temperature of the phase change material.
  • the flea space of the capsule is only partially filled with the phase change material, whereby a
  • volume change of the phase change material is harmless to the capsule during phase change.
  • a wall for the material separation of the various volume areas is preferably arranged along the boundary surfaces.
  • the wall is preferably formed from a material whose melting temperature, e.g. in the case of metal or thermoplastic as wall material, or whose decomposition temperature, e.g. in the case of thermosetting plastic as wall material, is higher than the phase change temperature TW of the phase change material.
  • the wall is preferably made of a material with high thermal conductivity, preferably from 30 W / (mK) to 500 W / (mK), and / or has a small wall thickness, preferably from 0.1 mm to 2 mm, particularly preferably from 0.2 mm up to 1.2 mm.
  • the wall is preferably formed from a polymer material.
  • a polymer material With the deliberate acceptance of a low thermal conductivity of the wall material, there is the advantage that the wall material is largely free of corrosion compared to aqueous salt solutions or (practically anhydrous) molten salts as heat transfer fluid or as
  • the wall is formed from a carbon / polymer composite material, which in its volume or in its polymer matrix contains a proportion of evenly distributed particles of a carbon allotrope such as graphite, in particular expanded graphite, graphene, fullerenes or carbon nanotubes.
  • a carbon allotrope such as graphite, in particular expanded graphite, graphene, fullerenes or carbon nanotubes.
  • Such an admixture of carbon allotrope particles increases the thermal conductivity of the wall material without impairing its mechanical stability and its chemical resistance to salt solutions or molten salts.
  • the proportion by weight of the carbon allotrope is preferably 2% to 70%, in particular 5% to 50%, of the carbon / polymer composite material.
  • the particle sizes of the particles of the carbon allotrope, in particular of expanded graphite, are preferably in the range from 1 ⁇ m to 500 ⁇ m. Typically the particle size distribution is a normal distribution.
  • the total fraction of the carbon allotrope preferably contains different size-specific fractions, i.e. particle size fractions, the carbon allotrope particles, in particular expanded graphite particles, of a first size-specific fraction having an average particle size which differs from the average particle size of a further size-specific fraction.
  • the mean particle sizes of the two particle size distributions are preferably sufficiently far apart from one another that they form a bimodal distribution with two recognizable maxima in the two adjacent particle size distributions. It is also possible for more than two size-specific proportions to be added to the polymer matrix of the wall material as the respective particle size fraction. Even with such a polydisperse admixture, the mean particle sizes of the multiple particle size distributions are sufficiently far apart that the multiple adjacent particle size distributions form a multimodal distribution with multiple recognizable maxima.
  • the ratio of the mean particle sizes is preferably two different
  • the carbon / polymer composite material preferably contains different types of carbon allotrope.
  • the wall is in the form of a line system, which is from a
  • Heat transfer fluid can flow through and into the phase change material in the
  • Phase change material volume area is at least partially embedded.
  • the partial embedding of the line system in the phase change material forms a free volume within the device into which the phase change material can expand when changing to its more voluminous state, so that the device is prevented from inflating or bursting.
  • both the phase change material and the line system each form a coherent volume. In the operating state of the device, these are on the one hand the phase change material volume and on the other hand the heat transfer fluid volume.
  • the line system preferably contains series and / or parallel connections
  • Pipe register as well as a fluid inlet and a fluid outlet, the fluid inlet being intended for receiving a heat transfer fluid, for example from a solar collector, with a storage charging temperature TL in the line system, the storage charging temperature TL being greater than the phase change temperature TW of the phase change material (TL> TW ).
  • the line system preferably contains series and / or parallel connections
  • Pipe register as well as a fluid inlet (FE) and a fluid outlet (FA), the fluid inlet (FE) being intended for receiving a heat transfer fluid from a heating circuit, for example, with a storage discharge temperature TE into the line system, the storage discharge temperature TE being lower than the Phase change temperature TW of the phase change material is (TE ⁇ TW).
  • the pipe registers connected fluidly in series and / or in parallel are preferably
  • phase change material capsules in which the phase change material is encapsulated and which can be flowed around by a heat transfer fluid.
  • the plurality of phase change material capsules (PK) are preferably contained in the container (B) as a solid packing or as a loose bed, which has a fluid inlet (FE ') and a fluid outlet (FA'), the fluid inlet (FE ') for Receipt of a heat transfer fluid (F; Fl, F2) from a solar collector, for example, with a storage charging temperature TL in the container (B) is determined, the storage charging temperature TL being greater than the phase change temperature TW of the phase change material (P) (TL> TW).
  • the plurality of phase change material capsules (PK) are preferably contained in the container (B) as a solid packing or as a loose bed, which has a fluid inlet (FE ') and a fluid outlet (FA'), the fluid inlet (FE ') for Receipt of a heat transfer fluid (F; Fl, F2) originating from a heating circuit, for example, with a storage discharge temperature TE in the container (B) is determined, the storage discharge temperature TE being less than the phase change temperature TW of the phase change material (P) (TE ⁇ TW).
  • the plurality of phase change material capsules contains a first plurality of phase change material capsules having a first capsule size and a second plurality of
  • Phase change material capsules with a second capsule size Phase change material capsules with a second capsule size.
  • the phase change material capsules preferably have approximately the shape of a sphere, an ovoid, a cylinder, a prism, a cube or a parallelepiped.
  • phase change material capsules preferably have a greater average density than the heat transfer fluid.
  • the individual phase change material capsules sink down in the container containing the heat transfer fluid and form a bed at the bottom of the container
  • the line system contains a first heat pipe with a heat pipe evaporator area, a heat pipe condenser area and a first working fluid, the heat pipe evaporator area being arranged outside the device and the heat pipe condenser area being arranged inside the device.
  • This first heat pipe is used to charge the storage device.
  • This charging heat pipe has a very high thermal conductivity, so you can use it very deep inside the
  • Phase change material volume (third volume area) heat energy can be entered.
  • the line system contains a second one
  • Heat pipe with a heat pipe evaporator area, a heat pipe condenser area and a second working fluid, the heat pipe evaporator area being arranged inside the device and the heat pipe condenser area being arranged outside the device.
  • This second heat pipe is used to discharge the storage device.
  • This discharge heat pipe has a very high thermal conductivity, so that heat energy can be discharged very deeply from the interior of the phase change material volume (third volume area).
  • the first working fluid and the second working fluid are expediently the same type of fluid material.
  • the phase change material can contain an organic material such as wax, paraffin, fatty acid, ester, etc., or an inorganic material, in particular a salt or a salt mixture.
  • the phase change material preferably contains a paraffin whose chain length is in the range from 20 to 34 carbon atoms.
  • Such relatively short-chain organic materials have a melting temperature that is well below 100 ° C. This is advantageous for heating domestic water at atmospheric pressure.
  • the phase change material preferably contains an inorganic salt.
  • a first particularly preferred phase change material contains one of the following salts:
  • phase change material (P) has an inorganic salt mixture with different anions and / or different cations.
  • LiNOs / NaNOs / KN0 3 / NaN0 2 / KNO LiNOs / NaNOs / KN0 3 / NaN0 2 / KNO.
  • a mixed salt By mixing these salts, a mixed salt can be obtained whose melting temperature is between 50 ° C and 100 ° C. This is beneficial for heating domestic water
  • Fig. 1 is a sectional view of a first embodiment of the device according to the invention
  • Figure 2 is a sectional view of a second embodiment of the device according to the invention.
  • FIG. 3 is an enlarged illustration of the sections A from FIG. 1 and from FIG. 2;
  • Figure 4 is a sectional view of a third embodiment of the device according to the invention.
  • Figure 5 is a sectional view of a fourth embodiment of the device according to the invention.
  • the device 1 shows a sectional view of a first embodiment of the device 1 according to the invention.
  • the device 1 occupies a volume which has a heat transfer fluid volume area FV through which a heat transfer fluid F can flow and a phase change material volume area PV containing a phase change material P.
  • a phase change temperature TW the phase change material P undergoes a reversible phase change between a first state of the existing below the phase change temperature TW
  • Heat transfer fluid volume region FV adjoins phase change material volume region PV via interfaces G. The volume areas
  • Container inner wall Bi Container inner wall Bi, a container outer wall Ba facing away from the volume areas and a thermally insulating insulation area IB arranged between the container inner wall Bi and the container outer wall Ba, as can be seen in the enlarged section A of
  • Fig. 3 sees better.
  • the thermal insulation area between the inner wall of the container Bi and the The outer wall of the container Ba ensures that only little thermal energy is exchanged between the medium surrounding the device 1 (typically air) and the phase change material P inside the device 1, for example by conduction and / or thermal radiation.
  • An effort is made to keep the phase change material P in the interior of the device 1 at its "working temperature", ie at its phase change temperature TW, at all times, ie during charging, discharging and holding the charge. This is achieved by always striving for a coexistence of the first state and the second state of the phase change material P.
  • the device 1 ′ comprises a first volume area VI through which a first heat transfer fluid F1 can flow, a second volume area V2 through which a second heat transfer fluid F2 can flow, and a third volume area V3 containing at least one phase change material P.
  • the first volume area VI adjoins the third volume area V3 via first interfaces Gl
  • the second volume area V 2 adjoins the third volume area V3 via second interfaces G2.
  • the volume areas VI, V 2, V3 are arranged in a container B, which has an inner container wall Bi facing the volume areas VI, V 2, V3, an outer container wall Ba facing away from the volume areas VI, V2, V3 and an outer wall Ba between the Has the container inner wall Bi and the container outer wall Ba arranged thermally insulating insulation area IB, as can also be seen better in the enlarged section A of FIG.
  • the thermal insulation area between the inner wall of the container Bi and the outer wall of the container Ba ensures that between the medium surrounding the device 1 '(typically air) and the phase change material P inside the device 1' there is only little thermal energy, for example through heat conduction and / or heat radiation is exchanged.
  • Phase change material P aims.
  • FIG. 3 shows an enlarged illustration of the sections A from FIG. 1 and from FIG. 2.
  • the isolation area IB forms a fourth volume area V4 of the devices 1, 1 '.
  • FIG. 4 shows a sectional view of a third embodiment of the device 1 ′′ according to the invention.
  • a wall or several walls are used to materially separate the various
  • volume areas (cf. FV, PV; VI, V 2, V3 in Fig. 1 and Fig. 2) are provided.
  • the wall or the several walls are in the form of a line system L, which is carried by a heat transfer fluid F can flow through and into the phase change material P in the phase change material
  • the line system L contains a pipe register or several pipe registers R connected in series and / or parallel in terms of fluid, as well as one
  • Fluid inlet FE and a fluid outlet FA The entire device 1 ′′ is contained in a container B.
  • the fluid inlet FE serves to receive a hot heat transfer fluid F, e.g. from a solar collector, with a storage charging temperature TL into the line system L.
  • the storage charging temperature TL is greater than the phase change temperature TW of the phase change material P (TL> TW).
  • the phase change material P is gradually charged, i.e. the phase change into the more energetic state is completed.
  • the fluid outlet FA serves to discharge the heat transfer fluid F which has cooled down after flowing through the device 1 ′′.
  • the fluid inlet FE serves to receive a cold heat transfer fluid F, e.g. from a heating circuit, with a storage discharge temperature TE into the line system L.
  • the storage discharge temperature TE is lower than the phase change temperature TW of the phase change material P (TE ⁇ TW).
  • the phase change material P is gradually discharged, i.e. the
  • the fluid outlet FA is used to discharge the heat transfer fluid F, which has been warmed up after flowing through the device 1 ′′.
  • the dashed line at the upper end of the volume of the phase change material P represents the level of the phase change material.
  • the container B is not completely, in particular between 90% and 95% of the container volume, filled with phase change material P when the phase change material P is less in its state Volume (mostly the volume of the lower energy state).
  • the container B is completely or almost completely, in particular more than 95% of the container volume, filled with phase change material P when the phase change material P is in its state with a larger volume (usually the volume of the higher-energy state).
  • FIG. 5 shows a sectional view of a fourth embodiment of the device 1 "'according to the invention.
  • a wall or several walls are provided for the material separation of the various volume areas (cf. FV, PV; VI, V 2, V3 in FIG and Fig. 2)
  • the wall or the plurality of walls lie as a plurality of capsule walls of a plurality of
  • the plurality of phase change material capsules PK can be contained in the container B as a solid pack or as a loose bulk.
  • the container B has a fluid inlet FE 'and a fluid outlet FA', wherein the fluid inlet FE 'is intended to receive a heat transfer fluid F from a solar collector, for example, with a storage charging temperature TL in the container B.
  • the storage charging temperature TL is greater than the phase change temperature TW of the phase change material P (TL> TW).
  • the phase change material P is gradually charged, ie the phase change into the more energetic state is completed.
  • the fluid outlet FA 1 serves to discharge the heat transfer fluid F. which has "cooled down" after flowing through the device.
  • the container B has a fluid inlet FE 'and a fluid outlet FA', wherein the fluid inlet FE 'is intended to receive a heat transfer fluid F, for example from a heating circuit, with a storage discharge temperature TE into the container B, the storage discharge temperature TE being less than the phase change temperature TW of the phase change material P is (TE ⁇ TW).
  • the phase change material P is gradually discharged, ie the phase change into the lower-energy state is completed.
  • the fluid outlet FA 1 is used to deliver the after
  • the plurality of phase change material capsules PK has a first plurality of large phase change material capsules PK1 and a second plurality of small ones
  • the small capsules PK2 are dimensioned so that they fit into the cavities between the large capsules PK1 present as bulk in the container B.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)

Abstract

L'invention concerne un dispositif (1) pour recevoir, stocker et libérer de la chaleur. Le dispositif contient une zone volumique de fluide caloporteur (FV) à travers laquelle au moins un fluide caloporteur (F) peut circuler, et une zone volumique de matériau à changement de phase (PV) contenant un matériau à changement de phase (P). Le matériau à changement de phase (P) peut subir un changement de phase réversible à une température de changement de phase (TW) entre un premier état du matériau à changement de phase (P) existant en dessous de la température de changement de phase (TW) et un second état du matériau à changement de phase (P) existant au-dessus de la température de changement de phase (TW). La zone volumique du fluide caloporteur (FV) est adjacente à la zone volumique du matériau à changement de phase (PV) au moyen d'interfaces (G). Les zones volumiques (FV, PV) sont disposées dans un récipient (B) qui présente une paroi intérieure de récipient (Bi), une paroi extérieure de récipient (Ba) et une zone d'isolation thermique (IB) disposée entre la paroi intérieure de récipient (Bi) et la paroi extérieure de récipient (Ba).
PCT/IB2020/056477 2019-07-12 2020-07-09 Accumulateur de chaleur pourvu de matériau à changement de phase WO2021009629A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH9092019 2019-07-12
CH00909/19 2019-07-12

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Publication Number Publication Date
WO2021009629A1 true WO2021009629A1 (fr) 2021-01-21

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3034608A1 (de) * 1980-09-13 1982-04-29 Helmut Dr.-Ing. 7261 Gechingen Wiedmann Verfahren zum transport von waermeenergie und speicher zur durchfuehrung des verfahrens
DE3111888A1 (de) * 1981-03-26 1982-10-28 Stiebel Eltron Gmbh & Co Kg, 3450 Holzminden Latentwaermespeicher
EP0580946A1 (fr) * 1992-07-28 1994-02-02 Längerer & Reich GmbH & Co. Accumulateur thermique, en particulier accumulateur de chaleur latente
DE4315492A1 (de) * 1993-05-10 1994-11-17 Daimler Benz Ag Latentwärmespeicher und ein Verfahren zur Herstellung desselben
DE102010044122A1 (de) * 2010-11-18 2012-05-24 BSH Bosch und Siemens Hausgeräte GmbH Wärmepumpe zur Warmwasserbereitung
EP3034977A1 (fr) * 2014-12-17 2016-06-22 Vaillant GmbH Accumulateur thermique latent

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3034608A1 (de) * 1980-09-13 1982-04-29 Helmut Dr.-Ing. 7261 Gechingen Wiedmann Verfahren zum transport von waermeenergie und speicher zur durchfuehrung des verfahrens
DE3111888A1 (de) * 1981-03-26 1982-10-28 Stiebel Eltron Gmbh & Co Kg, 3450 Holzminden Latentwaermespeicher
EP0580946A1 (fr) * 1992-07-28 1994-02-02 Längerer & Reich GmbH & Co. Accumulateur thermique, en particulier accumulateur de chaleur latente
DE4315492A1 (de) * 1993-05-10 1994-11-17 Daimler Benz Ag Latentwärmespeicher und ein Verfahren zur Herstellung desselben
DE102010044122A1 (de) * 2010-11-18 2012-05-24 BSH Bosch und Siemens Hausgeräte GmbH Wärmepumpe zur Warmwasserbereitung
EP3034977A1 (fr) * 2014-12-17 2016-06-22 Vaillant GmbH Accumulateur thermique latent

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