Study of the concept of thermal contact resistance
Mohamed B. H. Sassi, Celso R. B. Filho Zaqueu E. DA Silva, Carlos A. C. Dos Santos, Jose P. A. Junior
In this paper theoretical and experimental analysis are investigated to study the concept of thermal resistance of two contacting solids. We begin our study with a comparison between electric and thermal diffusion phenomena in solids. The goal throughout this comparison is to understand if the concept of a const thermal resistance with zero capacitance consideration is available or not in periodic regimes. The experimental apparatus consists of two metallic blocks closed together, one is heated with a sinusoidal electric power and the other is cooled with water. Then the resistance is estimated using transient temperatures measurements with add of theoretical model.
Keywords: Thermal contact resistance, transient regime, heat transfer.