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GB2008554A - Stabilisation of supercooled fluids - Google Patents

Stabilisation of supercooled fluids

Info

Publication number
GB2008554A
GB2008554A GB7842505A GB7842505A GB2008554A GB 2008554 A GB2008554 A GB 2008554A GB 7842505 A GB7842505 A GB 7842505A GB 7842505 A GB7842505 A GB 7842505A GB 2008554 A GB2008554 A GB 2008554A
Authority
GB
United Kingdom
Prior art keywords
supercooled
hypo
heat
recrystallization
release
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
GB7842505A
Other versions
GB2008554B (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.)
Kay Laboratories Inc
Original Assignee
Kay Laboratories Inc
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 Kay Laboratories Inc filed Critical Kay Laboratories Inc
Publication of GB2008554A publication Critical patent/GB2008554A/en
Application granted granted Critical
Publication of GB2008554B publication Critical patent/GB2008554B/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
    • A61F7/02—Compresses or poultices for effecting heating or cooling
    • A61F7/03—Compresses or poultices for effecting heating or cooling thermophore, i.e. self-heating, e.g. using a chemical reaction
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
    • A61F2007/0098—Heating or cooling appliances for medical or therapeutic treatment of the human body ways of manufacturing heating or cooling devices for therapy
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
    • A61F7/02—Compresses or poultices for effecting heating or cooling
    • A61F2007/0268—Compresses or poultices for effecting heating or cooling having a plurality of compartments being filled with a heat carrier
    • A61F2007/0276—Compresses or poultices for effecting heating or cooling having a plurality of compartments being filled with a heat carrier with separate compartments connectable by rupturing a wall or membrane
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F7/00—Heating or cooling appliances for medical or therapeutic treatment of the human body
    • A61F7/02—Compresses or poultices for effecting heating or cooling
    • A61F2007/0292—Compresses or poultices for effecting heating or cooling using latent heat produced or absorbed during phase change of materials, e.g. of super-cooled solutions
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Vascular Medicine (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biomedical Technology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Paper (AREA)
  • External Artificial Organs (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Abstract

Supercooled fluids such as hypo may be packaged and used as sources of heat at a predetermined temperature, recrystallization being triggered when release of heat is desired. In order to render the supercooled hypo stable, it is heated sufficiently to ensure that minute crystals of all phases, especially the dihydrate are melted. The specific gravity and optionally the pH are then adjusted to 1.595 and 8-8.5 respectively, for example by adding water and an alkali, thereby to stabilize the fluid when it is supercooled below the melting point of hypo. The water also ensures recrystallization as the alpha -pentahydrate, thereby maximizing the release of heat.
GB7842505A 1977-10-31 1978-10-30 Supercooled fluids Expired GB2008554B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US84714177A 1977-10-31 1977-10-31
US94587178A 1978-09-26 1978-09-26

Publications (2)

Publication Number Publication Date
GB2008554A true GB2008554A (en) 1979-06-06
GB2008554B GB2008554B (en) 1982-07-21

Family

ID=27126687

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7842505A Expired GB2008554B (en) 1977-10-31 1978-10-30 Supercooled fluids

Country Status (5)

Country Link
JP (1) JPS5488871A (en)
CA (1) CA1125493A (en)
DE (1) DE2844810A1 (en)
FR (1) FR2408808A1 (en)
GB (1) GB2008554B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4451383A (en) * 1978-01-03 1984-05-29 American Hospital Supply Corporation Recyclable hot pad
IL61315A (en) * 1979-11-02 1983-07-31 Dow Chemical Co Hydrated mg(no3)2 reversible phase change compositions
US4272392A (en) * 1979-11-02 1981-06-09 The Dow Chemical Company Hydrated Mg(NO3)2 /MgCl2 reversible phase change compositions
DE3034608A1 (en) * 1980-09-13 1982-04-29 Helmut Dr.-Ing. 7261 Gechingen Wiedmann Heat transfer from source to consumer by melt storage medium - to increase distance covered
EP0210954B1 (en) * 1985-07-20 1990-04-25 WST Wärmespeichertechnologie SA Latent heat store
DE4241214C1 (en) * 1992-12-08 1994-08-04 Fritz Werner Praezismaschbau Method for producing latent heat storage cells of a motor vehicle heat storage

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1385075A (en) * 1921-07-19 Method of preventing crystallization of a melted mass of crystals
US3536058A (en) * 1968-10-16 1970-10-27 Peter J Hearst Chemical heat barrier for wet suits
US3951127A (en) * 1973-06-28 1976-04-20 Kay Laboratories, Inc. Constant temperature device

Also Published As

Publication number Publication date
GB2008554B (en) 1982-07-21
FR2408808B1 (en) 1984-03-30
FR2408808A1 (en) 1979-06-08
JPS5488871A (en) 1979-07-14
JPS6229475B2 (en) 1987-06-26
DE2844810A1 (en) 1979-05-03
CA1125493A (en) 1982-06-15
DE2844810C2 (en) 1988-06-09

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Effective date: 19981029