Computation of Tissue Temperature in Human Periphery during Different Biological and Surrounding Conditions

A mathematical model is presented to determine tissue temperature in the periphery of human thigh during moderate(23°C) and cool(15°C) environment temperature and the effect of sweat evaporation on heat loss from human body is also measured. The region under study is a circular cross-section of human thigh and further has been partitioned into three concentric tissues layers on the basis of biological properties. The outer surface of the region is assumed to be exposed to moderate and cool surrounding temperature and heat exchange takes place with the environment through convection, radiation and evaporation. The variation in biological parameters like blood mass flow, thermal conductivity of tissues, specific heat of the tissues are considered varying with respect to position in different concentric tissues layers. The metabolic heat generation is assumed to vary with respect to both position and temperature. Keywords-tissue temperature, periphery, tissues layers, metabolic heat generation.