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COOLING OF A SLAB WITH THERMAL CONTRACTION AND PROGRESSIVE LOSS OF CONTACT WITH A COLD SURFACE.

Author(s) : HUNTER L. W., KUTTLER J. R.

Type of article: Article

Summary

THE TYPE OF PROBLEM THE AUTHORS HAD IN MIND IS THE COOLING OF CAST METAL IN A MOLD. IT IS ASSUMED THAT WHEN CONTACT WITH THE COOLING SURFACE IS BROKEN, HEAT TRANSFER TAKES PLACE BY RADIATION AND CONDUCTION ONLY THROUGH THE GAS IN THE GAP. PROFILES FOR BOTH THICKNESS AND TEMPERATURE OF THE CONTRACTING SLAB HAVE BEEN CALCULATED. FOR COMPARISON, SIMILAR PROFILES HAVE BEEN PRODUCED FOR BOTH THE CASE WHERE THE COLD WALL RECEDES WITH THE CONTRACTING SLAB, IE THE CONTACT IS MAINTAINED THROUGHOUT COOLING, AND THE CASE WHERE THE RECEDING FACE IS INSULATED. THE DIFFERENCES INDICATE THAT EITHER OF THE TWO APPROXIMATIONS WILL GIVE FALSE RESULTS. D.W.H.

Details

  • Original title: COOLING OF A SLAB WITH THERMAL CONTRACTION AND PROGRESSIVE LOSS OF CONTACT WITH A COLD SURFACE.
  • Record ID : 1984-2230
  • Languages: English
  • Source: J. Heat Transf. - vol. 105 - n. 4
  • Publication date: 1983/11
  • Document available for consultation in the library of the IIR headquarters only.

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