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A SIMPLE METHOD FOR MODELLING THE FROST FORMATION PHENOMENON IN DIFFERENT GEOMETRIES.

Author(s) : PADKI M. M., SHERIF S. A., NELSON R. M.

Summary

IN THE PAPER, A SIMPLE METHOD OF COMPUTING THE HEAT TRANSFER AND FROST GROWTH RATES AS WELL AS THE FROST THICKNESS AND SURFACE TEMPERATURE AS FUNCTIONS OF TIME AND POSITION IS PROPOSED. THE METHOD UTILIZES KNOWN CONVECTIVE HEAT TRANSFER CORRELATIONS FOR DIFFERENT GEOMETRIES AND THE LEWIS ANALOGY TO DETERMINE A CONVECTIVE MASS TRANSFER COEFFICIENT AND AN ENTHALPY TRANSFER COEFFICIENT. THE TECHNIQUE IS ALSO PROVIDED WITH A CAPABILITY FOR ADJUSTING THE FROST DENSITY AND THERMAL CONDUCTIVITY TO ACCOUNT FOR THE CHANGES IN THE FROST LAYER STRUCTURE AS A RESULT OF THE OCCURRENCE OF A MELTING-AND-REFREEZING PHENOMENON ON THE UPPER FROST LAYERS.

Details

  • Original title: A SIMPLE METHOD FOR MODELLING THE FROST FORMATION PHENOMENON IN DIFFERENT GEOMETRIES.
  • Record ID : 1991-0184
  • Languages: English
  • Publication date: 1989
  • Source: Source: ASHRAE Trans.
    vol. 95; n. 2; 1127-1137; 8 fig.; 109 ref.; append.
  • Document available for consultation in the library of the IIR headquarters only.

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