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ISSN Online: 2377-424X

International Heat Transfer Conference 5
September, 3-7, 1974, Tokyo, Japan

AN INVERSE FINITE DIFFERENCE METHOD FOR THE DETERMINATION OF THERMAL CONDUCTIVITY

Get access (open in a dialog) DOI: 10.1615/IHTC5.1400
pages 202-204

Résumé

A method is presented for the determination of temperature dependent thermal conductivity which is applicable to specimens subjected to large temperature ranges and arbitrary thermal environments. The method is based on a non-linear, transient heat conduction model in discretized form which requires the temperature histories over a network within the sample. A linear algebraic system then determines the thermal conductivity parametrically interms of the measured temperatures. Elimination of the parametric coordinates results in an explicit temperature dependent conductivity function. The method is illustrated using a hollow cylindrical specimen with a conducitivity function of the form K(T) = T2.