GB844757A - Method of increasing the rate of heat transfer between hot surfaces and a liquid in contact therewith - Google Patents

Method of increasing the rate of heat transfer between hot surfaces and a liquid in contact therewith

Info

Publication number
GB844757A
GB844757A GB2189056A GB2189056A GB844757A GB 844757 A GB844757 A GB 844757A GB 2189056 A GB2189056 A GB 2189056A GB 2189056 A GB2189056 A GB 2189056A GB 844757 A GB844757 A GB 844757A
Authority
GB
United Kingdom
Prior art keywords
liquid
casting
vapour
mould
increasing
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
GB2189056A
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
Publication of GB844757A publication Critical patent/GB844757A/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
    • F28F13/00—Arrangements for modifying heat-transfer, e.g. increasing, decreasing
    • F28F13/16—Arrangements for modifying heat-transfer, e.g. increasing, decreasing by applying an electrostatic field to the body of the heat-exchange medium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
    • B22D11/055—Cooling the moulds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/124—Accessories for subsequent treating or working cast stock in situ for cooling
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/04—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering with simultaneous application of supersonic waves, magnetic or electric fields
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B37/00—Component parts or details of steam boilers
    • F22B37/02—Component parts or details of steam boilers applicable to more than one kind or type of steam boiler
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
    • F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
    • F22D1/006—Feed-water heaters, i.e. economisers or like preheaters with heating tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
    • F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
    • F22D1/02—Feed-water heaters, i.e. economisers or like preheaters with water tubes arranged in the boiler furnace, fire tubes, or flue ways
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
    • F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
    • F22D1/16—Feed-water heaters, i.e. economisers or like preheaters with water tubes arranged otherwise than in the boiler furnace, fire tubes, or flue ways

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • General Induction Heating (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

844,757. Continuous - casting machines. STEIGERWALD, K. H. July 16, 1956 [Feb. 29, 1956], No. 21890/56. Class 83 (1). [Also in Group XIII] A method of increasing the rate of heat-transfer between a heated surface and a liquid separated from the surface by a vapour-film formed during heat-exchange between the surface and the liquid, comprises applying an electric voltage between the liquid and heated surface, such as to produce an electrical discharge through the vapour-film. In a continuous casting process, a casting 80 to be cooled is in close contact with the wall of a mould 81. A ring of refractory insulating material 83 is press-fitted into mould 81, and carries a spray-nozzle from which water is ejected on to the surface of casting 80, the resulting steam being evacuated through openings 84 in the member 83. The voltage generator 86 is connected between the nozzle 82 and mould 81, or the casting 80. It is stated that a magnetic field may be provided in or near the electric discharge zone. The current used may be alternating or direct, and a highfrequency current may be employed. The heated surface may be flat or cylindrical, smooth or roughened, and may be plated. The preferred liquid is water, but other liquids may be used if they are electrically conductive or made conductive by admixtures. The Specification indicates also that the hot surface may be formed by the boundary of a solid, gas, vapour or liquid.
GB2189056A 1956-02-29 1956-07-16 Method of increasing the rate of heat transfer between hot surfaces and a liquid in contact therewith Expired GB844757A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEST10918A DE1083839B (en) 1956-02-29 1956-02-29 Method and device for improving the heat transfer between a hot surface and a liquid that is separated from this surface by a layer of vapor that forms over the hot surface

Publications (1)

Publication Number Publication Date
GB844757A true GB844757A (en) 1960-08-17

Family

ID=7455234

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2189056A Expired GB844757A (en) 1956-02-29 1956-07-16 Method of increasing the rate of heat transfer between hot surfaces and a liquid in contact therewith

Country Status (3)

Country Link
CH (1) CH341847A (en)
DE (1) DE1083839B (en)
GB (1) GB844757A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2185803A (en) * 1986-01-28 1987-07-29 Aleem Uddin Mustafa Steam boiler

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4123886A1 (en) * 1991-07-18 1993-01-21 Linde Ag METHOD FOR COOLING METALLIC SURFACES
EP1785206A1 (en) * 2005-11-10 2007-05-16 Siemens Aktiengesellschaft Method and apparatus for cooling a continuous casting mould by steam

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE373051C (en) * 1923-04-07 Bbc Brown Boveri & Cie Method of measuring and distributing a liquid to be cooled or condensed over a cooling surface
US1835557A (en) * 1930-07-29 1931-12-08 Combustion Utilities Corp Heat transfer
DE878500C (en) * 1951-09-25 1953-06-05 Metal Carbides Corp Method and device for heat exchange between two bodies

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2185803A (en) * 1986-01-28 1987-07-29 Aleem Uddin Mustafa Steam boiler
GB2185803B (en) * 1986-01-28 1989-11-01 Aleem Uddin Mustafa Steam boiler

Also Published As

Publication number Publication date
CH341847A (en) 1959-10-31
DE1083839B (en) 1960-06-23

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