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GB1468710A - Methods of forming re-entrant cavities in the surface of heat exchange members or ebulators - Google Patents

Methods of forming re-entrant cavities in the surface of heat exchange members or ebulators

Info

Publication number
GB1468710A
GB1468710A GB1898174A GB1898174A GB1468710A GB 1468710 A GB1468710 A GB 1468710A GB 1898174 A GB1898174 A GB 1898174A GB 1898174 A GB1898174 A GB 1898174A GB 1468710 A GB1468710 A GB 1468710A
Authority
GB
United Kingdom
Prior art keywords
identations
ebullator
tube
heat exchange
entrant cavities
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
GB1898174A
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 Atomic Energy Authority
Original Assignee
UK Atomic Energy Authority
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 Atomic Energy Authority filed Critical UK Atomic Energy Authority
Priority to GB1898174A priority Critical patent/GB1468710A/en
Publication of GB1468710A publication Critical patent/GB1468710A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D31/00—Other methods for working sheet metal, metal tubes, metal profiles
    • 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
    • F28F13/18—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by applying coatings, e.g. radiation-absorbing, radiation-reflecting; by surface treatment, e.g. polishing
    • F28F13/185—Heat-exchange surfaces provided with microstructures or with porous coatings
    • F28F13/187—Heat-exchange surfaces provided with microstructures or with porous coatings especially adapted for evaporator surfaces or condenser surfaces, e.g. with nucleation sites

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Powder Metallurgy (AREA)

Abstract

1468710 Making heat exchangers; rolling; stamping UNITED KINGDOM ATOMIC ENERGY AUTHORITY 30 April 1975 [30 April 1974] 18981/74 Headings B3A B3M and B3Q [Also in Division F4] Nucleation sites are formed in a heat exchange or ebullator member 10 by forming discrete indentations 11 in the member and working the member to partially close the identations and form re-entrant cavities 18, 19. An aluminium heat exchanger plate or tube may be formed, or an ebullator which may be formed of a ceramic material. The starting blank may be flat or tubular and the sites formed on at least part of the inside or outside of the tube. The identations 11 are formed by one or more spikes on a platen or roller, Fig. 1 (not shown). Raised margins 15 about the identations are flattened between rollers 16, 17 to form the re-entrant cavities. The member 10 may be formed into a tube and seam welded before or after flattening the margins 15. Alternatively, the strip 10 may be twisted to form a ribbon ebullator.
GB1898174A 1975-04-30 1975-04-30 Methods of forming re-entrant cavities in the surface of heat exchange members or ebulators Expired GB1468710A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1898174A GB1468710A (en) 1975-04-30 1975-04-30 Methods of forming re-entrant cavities in the surface of heat exchange members or ebulators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1898174A GB1468710A (en) 1975-04-30 1975-04-30 Methods of forming re-entrant cavities in the surface of heat exchange members or ebulators

Publications (1)

Publication Number Publication Date
GB1468710A true GB1468710A (en) 1977-03-30

Family

ID=10121742

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1898174A Expired GB1468710A (en) 1975-04-30 1975-04-30 Methods of forming re-entrant cavities in the surface of heat exchange members or ebulators

Country Status (1)

Country Link
GB (1) GB1468710A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2001160A (en) * 1977-07-13 1979-01-24 Carrier Corp Heat transfer surface and method of manufacture
EP0591693A1 (en) * 1992-09-08 1994-04-13 Kabushiki Kaisha Meidensha System for grooving and rolling linear member and flat heat exchanger tube resulting therefrom
EP0617250A3 (en) * 1993-03-26 1995-06-28 Showa Aluminum Corp Cooling tubes for heat exchangers.
US5784776A (en) * 1993-06-16 1998-07-28 Showa Aluminum Corporation Process for producing flat heat exchange tubes
US5931226A (en) * 1993-03-26 1999-08-03 Showa Aluminum Corporation Refrigerant tubes for heat exchangers
FR2865027A1 (en) 2004-01-12 2005-07-15 Air Liquide Corrugated fin for heat exchanger e.g. vaporizer-condenser, has pores, and corrugations, each including vertical legs alternatively connected by top and base of corrugation, where top, base and legs are made of sintered aluminum particles
CN115418586A (en) * 2022-09-30 2022-12-02 长春工业大学 Method for preparing surface gradient high-strength high-conductivity copper material by on-line cryogenic-deformation

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2001160A (en) * 1977-07-13 1979-01-24 Carrier Corp Heat transfer surface and method of manufacture
GB2001160B (en) * 1977-07-13 1982-10-13 Carrier Corp Heat exchange surface
EP0591693A1 (en) * 1992-09-08 1994-04-13 Kabushiki Kaisha Meidensha System for grooving and rolling linear member and flat heat exchanger tube resulting therefrom
US5749144A (en) * 1993-03-26 1998-05-12 Showa Aluminum Corporation Method of making refrigerant tubes for heat exchangers
US5638897A (en) * 1993-03-26 1997-06-17 Showa Aluminum Corporation Refrigerant tubes for heat exchangers
US5730215A (en) * 1993-03-26 1998-03-24 Showa Aluminum Corporation Refrigerant tubes for heat exchangers
EP0617250A3 (en) * 1993-03-26 1995-06-28 Showa Aluminum Corp Cooling tubes for heat exchangers.
EP0845646A1 (en) * 1993-03-26 1998-06-03 Showa Aluminum Corporation Refrigerant tubes for heat exchangers
US5931226A (en) * 1993-03-26 1999-08-03 Showa Aluminum Corporation Refrigerant tubes for heat exchangers
US5784776A (en) * 1993-06-16 1998-07-28 Showa Aluminum Corporation Process for producing flat heat exchange tubes
FR2865027A1 (en) 2004-01-12 2005-07-15 Air Liquide Corrugated fin for heat exchanger e.g. vaporizer-condenser, has pores, and corrugations, each including vertical legs alternatively connected by top and base of corrugation, where top, base and legs are made of sintered aluminum particles
CN115418586A (en) * 2022-09-30 2022-12-02 长春工业大学 Method for preparing surface gradient high-strength high-conductivity copper material by on-line cryogenic-deformation
CN115418586B (en) * 2022-09-30 2023-12-22 长春工业大学 Method for preparing high-strength high-conductivity copper material with surface gradient through on-line deep cooling-deformation

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Legal Events

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