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ISSN Online: 2377-424X

ISBN Print: 0-89116-909-1

International Heat Transfer Conference 9
August, 19-24, 1990 , Jerusalem, Israel

EVALUATION OF A MATHEMATICAL MODEL FOR HEAT TRANSFER AND FROST GROWTH ON AN OUTDOOR ROW OF VERTICAL CYLINDERS

Get access (open in a dialog) DOI: 10.1615/IHTC9.3940
pages 301-306

Sinopsis

The objective of the work described in this paper is to evaluate a mathematical model of heat and mass transfer to and through a frost layer growing on a vertical row of cylindrical tubes located in an unsteady outdoor environment. Mathematical models of frost growth are compared to experimental results for (a) heat transfer, (b) mass transfer, (c) frost depth, and (d) frost density. The range of parameters studied are: Reynolds number, 500 to 4 600; cylinder surface temperature, −5°C to −15°C; air temperature, 0° C to 15°C; and length of frosting test, up to 24 hours. It is found that the mathematical model calculates the unsteady outdoor experimental results for heat transfer to within ±25%. Frost mass, depth and density trends are well-predicted for all tests.