GB1481787A - Two-phase thermosyphons - Google Patents

Two-phase thermosyphons

Info

Publication number
GB1481787A
GB1481787A GB4750073A GB4750073A GB1481787A GB 1481787 A GB1481787 A GB 1481787A GB 4750073 A GB4750073 A GB 4750073A GB 4750073 A GB4750073 A GB 4750073A GB 1481787 A GB1481787 A GB 1481787A
Authority
GB
United Kingdom
Prior art keywords
fins
vessel
evaporator
sleeve
axis
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.)
Expired
Application number
GB4750073A
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.)
UK Secretary of State for Industry
Original Assignee
UK Secretary of State for Industry
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 UK Secretary of State for Industry filed Critical UK Secretary of State for Industry
Priority to GB4750073A priority Critical patent/GB1481787A/en
Publication of GB1481787A publication Critical patent/GB1481787A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
    • 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
    • F28D15/0233—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 the conduits having a particular shape, e.g. non-circular cross-section, annular
    • 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

Landscapes

  • 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)
  • Geometry (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

1481787 Heat pipes INDUSTRY SECRETARY OF STATE FOR 10 Oct 1974 [11 Oct 1973] 47500/73 Heading F4U A rotatable heat pipe comprises a closed vessel adapted to be rotated, in use, about an axis and having an evaporator 4 and a condenser 5 which are axially spaced. Condensate is urged towards the evaporator in response to rotation of the heat pipe in either direction about the axis by means of a fin arrangement located within the vessel. As shown, the fin arrangement comprises isosceles triangular cross-sectional fins 15 arranged symmetrically about the rotational axis and located in an annular space between a sleeve, Fig. 8 (not shown), and the inner circumferential wall of the vessel. The fins are arranged so that one set of the equal sides together form discontinuous multi-start right and left handed helical fins. The triangular fins may be replaced by short planar fins 32, 33. In a second embodiment, Figs. 9-11 (not shown), the annular space between the sleeve and the vessel wall is divided by an intermediate sleeve into inner and outer annular chambers, each chamber containing a respective helical fin of opposite hand thread. The chambers communicate with one another through ports in the intermediate sleeve through which condensate can pass only when the vessel rotates in one of the two senses. The internal surface of the evaporator is provided with a capillary mesh to distribute liquid over the surface.
GB4750073A 1974-10-10 1974-10-10 Two-phase thermosyphons Expired GB1481787A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4750073A GB1481787A (en) 1974-10-10 1974-10-10 Two-phase thermosyphons

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4750073A GB1481787A (en) 1974-10-10 1974-10-10 Two-phase thermosyphons

Publications (1)

Publication Number Publication Date
GB1481787A true GB1481787A (en) 1977-08-03

Family

ID=10445212

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4750073A Expired GB1481787A (en) 1974-10-10 1974-10-10 Two-phase thermosyphons

Country Status (1)

Country Link
GB (1) GB1481787A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006058494A1 (en) * 2004-12-01 2006-06-08 Convergence Technologies Limited Vapor chamber with boiling-enhanced multi-wick structure
WO2011159251A1 (en) * 2010-06-18 2011-12-22 Gatekeeper Laboratories Pte Ltd Thermosyphon for cooling electronic components
CN105157256A (en) * 2015-09-25 2015-12-16 南阳师范学院 Solar energy system for remotely and intelligently controlling flow distribution
CN105241289A (en) * 2015-11-16 2016-01-13 徐海慧 Inner-fin heat pipe with gradually-changed protruding length

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006058494A1 (en) * 2004-12-01 2006-06-08 Convergence Technologies Limited Vapor chamber with boiling-enhanced multi-wick structure
CN101040162B (en) * 2004-12-01 2010-06-16 嘉合科技有限公司 Vapor chamber with boiling-enhanced multi-wick structure
WO2011159251A1 (en) * 2010-06-18 2011-12-22 Gatekeeper Laboratories Pte Ltd Thermosyphon for cooling electronic components
CN105157256A (en) * 2015-09-25 2015-12-16 南阳师范学院 Solar energy system for remotely and intelligently controlling flow distribution
CN105157256B (en) * 2015-09-25 2017-02-15 南阳师范学院 Solar energy system for remotely and intelligently controlling flow distribution
CN105241289A (en) * 2015-11-16 2016-01-13 徐海慧 Inner-fin heat pipe with gradually-changed protruding length
CN105241289B (en) * 2015-11-16 2016-11-16 徐海慧 The inner fin heat pipe that a kind of projection length gradually changes

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee