FR2395480A2 - Coaxial tube heat exchanger for heat pump - has closed cylindrical inner chamber to increase fluid flow speed and improve heat exchange - Google Patents

Coaxial tube heat exchanger for heat pump - has closed cylindrical inner chamber to increase fluid flow speed and improve heat exchange

Info

Publication number
FR2395480A2
FR2395480A2 FR7719079A FR7719079A FR2395480A2 FR 2395480 A2 FR2395480 A2 FR 2395480A2 FR 7719079 A FR7719079 A FR 7719079A FR 7719079 A FR7719079 A FR 7719079A FR 2395480 A2 FR2395480 A2 FR 2395480A2
Authority
FR
France
Prior art keywords
fluid flow
inner chamber
tube
cylindrical inner
flow speed
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.)
Pending
Application number
FR7719079A
Other languages
French (fr)
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.)
MULTIFLUID ENERGIE
Original Assignee
MULTIFLUID ENERGIE
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 MULTIFLUID ENERGIE filed Critical MULTIFLUID ENERGIE
Priority to FR7719079A priority Critical patent/FR2395480A2/en
Publication of FR2395480A2 publication Critical patent/FR2395480A2/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B39/00—Evaporators; Condensers
    • F25B39/04—Condensers
    • 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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/10—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
    • F28D7/103—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically consisting of more than two coaxial conduits or modules of more than two coaxial 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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/10—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
    • F28D7/106—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically consisting of two coaxial conduits or modules of two coaxial conduits
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/06—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media
    • F28F13/08—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by affecting the pattern of flow of the heat-exchange media by varying the cross-section of the flow channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2339/00—Details of evaporators; Details of condensers
    • F25B2339/04—Details of condensers
    • F25B2339/047—Water-cooled condensers

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The heat exchanger has a smooth walled outer tube (1) enclosing a second tube (2) with circumferential corrugations. The refrigerant flows inside the corrugated tube (2) and is cooled by water flowing in the annular space (4). The additional device improves the rate of heat transfer by fitting a third tube (10) inside the corrugated tube to increase the velocity of flow of the refrigerant. A further improvement can be made by making passageways (13)(14) for the cooling water to flow through the third tube (10).
FR7719079A 1977-06-22 1977-06-22 Coaxial tube heat exchanger for heat pump - has closed cylindrical inner chamber to increase fluid flow speed and improve heat exchange Pending FR2395480A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7719079A FR2395480A2 (en) 1977-06-22 1977-06-22 Coaxial tube heat exchanger for heat pump - has closed cylindrical inner chamber to increase fluid flow speed and improve heat exchange

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7719079A FR2395480A2 (en) 1977-06-22 1977-06-22 Coaxial tube heat exchanger for heat pump - has closed cylindrical inner chamber to increase fluid flow speed and improve heat exchange

Publications (1)

Publication Number Publication Date
FR2395480A2 true FR2395480A2 (en) 1979-01-19

Family

ID=9192394

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7719079A Pending FR2395480A2 (en) 1977-06-22 1977-06-22 Coaxial tube heat exchanger for heat pump - has closed cylindrical inner chamber to increase fluid flow speed and improve heat exchange

Country Status (1)

Country Link
FR (1) FR2395480A2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0086470A1 (en) * 1982-02-15 1983-08-24 Wilhelm Dr.-Ing. Vox Heat pump condensor with three specifically co-axial tubular elements
EP0286789A2 (en) * 1987-04-16 1988-10-19 Janke & Kunkel Gmbh & Co. Kg Cooler, especially for a rotary evaporator
US20170198990A1 (en) * 2016-01-12 2017-07-13 Hamilton Sundstrand Corporation Heat exchangers
US11293703B2 (en) 2016-01-12 2022-04-05 Hamilton Sundstrand Corporation Heat exchangers
US11802736B2 (en) 2020-07-29 2023-10-31 Hamilton Sundstrand Corporation Annular heat exchanger

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0086470A1 (en) * 1982-02-15 1983-08-24 Wilhelm Dr.-Ing. Vox Heat pump condensor with three specifically co-axial tubular elements
EP0286789A2 (en) * 1987-04-16 1988-10-19 Janke & Kunkel Gmbh & Co. Kg Cooler, especially for a rotary evaporator
EP0286789A3 (en) * 1987-04-16 1989-05-10 Janke & Kunkel Gmbh & Co. Kg Cooler, especially for a rotary evaporator
US20170198990A1 (en) * 2016-01-12 2017-07-13 Hamilton Sundstrand Corporation Heat exchangers
US10088250B2 (en) * 2016-01-12 2018-10-02 Hamilton Sundstrand Corporation Heat exchangers
US10921071B2 (en) 2016-01-12 2021-02-16 Hamilton Sundstrand Corporation Heat exchangers
US11293703B2 (en) 2016-01-12 2022-04-05 Hamilton Sundstrand Corporation Heat exchangers
US11692780B2 (en) 2016-01-12 2023-07-04 Hamilton Sundstrand Corporation Heat exchangers
US11802736B2 (en) 2020-07-29 2023-10-31 Hamilton Sundstrand Corporation Annular heat exchanger

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