Heat Transfer Research

ISSN for PRINT: 1064-2285

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2004, Volume35

Andrey A. Shapoval
I. N. Frantsevich Institute for the Problems of Materials Science, National Academy of Sciences of Ukraine, Kiev, Ukraine

An approximate semi-empirical model of heat transfer in boiling of water and organic liquids on surfaces with porous disordered structures is presented. The model makes it possible to interpret the influence of geometric, structural, and thermophysical characteristics of porous structures on heat transfer. The thermophysical calculation of heat transfer for a porous surface is possible. The essence of the model is the following. The thermal resistance of heat transfer has three components. Their magnitudes change with modification of heat flux. The order of calculation of every component is presented. An empirical formula is suggested for calculating the characteristic value.

DOI: 10.1615/HeatTransRes.v35.i56.60 Download article, 8 pages

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