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International Heat Transfer Conference 7

ISSN: 2377-424X (online)
ISSN: 2377-4371 (flashdrive)

EXPERIMENTAL AND ANALYTICAL INVESTIGATION OF THE HEAT CONDUCTION WITH PHASE CHANGE

Song You-wang
Engineering Thermophysics Division, Department of Modern Mechanics, University of Science and Technology of China, Hefei, Anhui, The People's Republic of China

Ge Xin-shi
Engineering Thermophysics Division, Department of Modern Mechanics, University of Science and Technology of China, Hefei, Anhui, The People's Republic of China

DOI: 10.1615/IHTC7.720
pages 75-80

Résumé

The solidification problems in the cylindrical and planar containers cooled by convection have been solved by the application of the enthalpy model in conjunction with a fully implicit finite-difference scheme and have been studied experimentally using paraffin wax as a phase change material. In comparison with Neumann's exact solution it shows that the accuracy of the method used is satisfactory. The variation of the solid-liquid interface position and temperature profile measured in experiments were compared with the theoretical prediction obtained by the numerical method. The agreement is good. Based on the calculated results, the relations between the non-dimensional groups such as the full solidification period, the average heat flux at the container wall, the Biot and Stefan noduli are obtained and presented in charts, which are useful in practical application.

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