FR2398995A1 - Low temp. thermal accumulator and heat exchanger - makes use of phase change of anhydrous salts to hydrated salts - Google Patents

Low temp. thermal accumulator and heat exchanger - makes use of phase change of anhydrous salts to hydrated salts

Info

Publication number
FR2398995A1
FR2398995A1 FR7723367A FR7723367A FR2398995A1 FR 2398995 A1 FR2398995 A1 FR 2398995A1 FR 7723367 A FR7723367 A FR 7723367A FR 7723367 A FR7723367 A FR 7723367A FR 2398995 A1 FR2398995 A1 FR 2398995A1
Authority
FR
France
Prior art keywords
salts
heat exchanger
makes use
low temp
phase change
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.)
Granted
Application number
FR7723367A
Other languages
French (fr)
Other versions
FR2398995B1 (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7723367A priority Critical patent/FR2398995A1/en
Publication of FR2398995A1 publication Critical patent/FR2398995A1/en
Application granted granted Critical
Publication of FR2398995B1 publication Critical patent/FR2398995B1/fr
Granted legal-status Critical Current

Links

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
    • F28D11/00—Heat-exchange apparatus employing moving conduits
    • F28D11/02—Heat-exchange apparatus employing moving conduits the movement being rotary, e.g. performed by a drum or roller
    • F28D11/04—Heat-exchange apparatus employing moving conduits the movement being rotary, e.g. performed by a drum or roller performed by a tube or a bundle of tubes
    • 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
    • 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
    • F28D20/028—Control arrangements therefor
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Secondary Cells (AREA)

Abstract

A low temp. thermal storage system for use with solar heating of houses makes use of the fact that sodium sulphate releases heat when charging from the anhydrous phase to the hydrated phase. In order to ensure continuous reversibility of this process the sodium sulphate is mixed with sodium borate and placed in glass tubes. These tubes are mounted between circular flanges which rotate once in three quarters of an hour. The rotating assembly is partly immersed in a liq. which either supplies or removes heat. The device thus functions as a heat exchanger and heat accumulator.
FR7723367A 1977-07-25 1977-07-25 Low temp. thermal accumulator and heat exchanger - makes use of phase change of anhydrous salts to hydrated salts Granted FR2398995A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7723367A FR2398995A1 (en) 1977-07-25 1977-07-25 Low temp. thermal accumulator and heat exchanger - makes use of phase change of anhydrous salts to hydrated salts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7723367A FR2398995A1 (en) 1977-07-25 1977-07-25 Low temp. thermal accumulator and heat exchanger - makes use of phase change of anhydrous salts to hydrated salts

Publications (2)

Publication Number Publication Date
FR2398995A1 true FR2398995A1 (en) 1979-02-23
FR2398995B1 FR2398995B1 (en) 1983-10-21

Family

ID=9193976

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7723367A Granted FR2398995A1 (en) 1977-07-25 1977-07-25 Low temp. thermal accumulator and heat exchanger - makes use of phase change of anhydrous salts to hydrated salts

Country Status (1)

Country Link
FR (1) FR2398995A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4291755A (en) * 1978-10-10 1981-09-29 Sun Power Systems Inc. Method and apparatus for accumulating, storing and releasing thermal energy

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2359389A1 (en) * 1976-07-19 1978-02-17 Gen Electric HEAT EXCHANGE DEVICE
FR2396929A1 (en) * 1977-07-08 1979-02-02 Armines Thermal store for solar heating system - has tank with hydrated salt as storage medium contained in revolving drum to prevent degeneration

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2359389A1 (en) * 1976-07-19 1978-02-17 Gen Electric HEAT EXCHANGE DEVICE
FR2396929A1 (en) * 1977-07-08 1979-02-02 Armines Thermal store for solar heating system - has tank with hydrated salt as storage medium contained in revolving drum to prevent degeneration

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4291755A (en) * 1978-10-10 1981-09-29 Sun Power Systems Inc. Method and apparatus for accumulating, storing and releasing thermal energy

Also Published As

Publication number Publication date
FR2398995B1 (en) 1983-10-21

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Legal Events

Date Code Title Description
ST Notification of lapse