Popis: |
The use of the numerical method as a linear function to study the steady-state temperature distribution of different cylindrical layers of extremities of skin, viz. epidermis, dermis, and subcutaneous are discuss in this paper. The model is applied for prediction of transfer of heat in the human body affecting the age during the various exercise in a fixed period, incorporating the variation of thermal conductivity of flow of blood the mass rate which is dependent on age. Human body have capacity to work long physical exercise in high temperature environment. The equilibration constant medium defined as ‘A’ in the dermis. It is assumed that temperature distribution is uniform along θ and z directions and beside the radial direction this temperature distribution varies. By the vasodilatation process blood circulation in blood vessels are increased and by the evaporation and sweating body decrease the body temperature. The results are obtained numerically and represented graphically for different atmospheric temperatures. There are lots of causes to damage both respiratory system, life support system and peripheral tissues, but excessive exposer of body in cold and hot environment. The loss of heat from the outer surface of the body to the environment is taken due to convection, waves, and sweat disappearance. |