ISSN Online: 2377-424X
International Heat Transfer Conference 5
ANALYSIS OF THE PROCESS GOVERNING THE SUDDEN THERMAL CONTACT BETWEEN TWO SOLIDS. APPLICATION TO THE DETERMINATION OF EFFUSIVITY
Sinopsis
An analysis is made of the process governing the thermal accommodation between two solids put in contact, initially at different temperatures. By means of a mathematical model the insufficiency of the notion of the thermal contact resistance is demonstrated for the very first instant after the rupture of the thermal equilibrium. An experimental apparatus allowing a full automatised measurement of the diffusivity is described. Results are presented and discussed. Various applications are considered.