Human Thermoregulation System: Research of Heat Transfer Processes in Zero Gravity

This article discusses the issues of modeling and calculating thermal processes in the human thermoregulation system, taking into account internal sources and heat transfer between the calculated elements and layers. The method of calculating the combined heat exchange processes allow obtaining local thermophysical parameters of the system. The model takes into account the thermal resistance of passive and active thermal protection, the thermophysical and geometric properties of the design elements when the environmental parameters change. To calculate the mass flow rate of the coolant (blood) to the calculated elements, the flow-pressure characteristics of the human circulatory system are taken into account within the framework of the presented methodology. This paper presents the results of model studies of thermal processes in the human thermoregulation system when entering the conditions of weightlessness. The influence of heat transfer with the heat carrier current between the calculated elements and layers on the Earth and in weightlessness is estimated. The influence of the magnitude of internal heat release on the heat exchange processes is investigated. The analysis of the obtained results makes it possible to supplement the experiments with computer studies, as well as to optimize control systems and elements of individual life support systems to protect a person from adverse external factors.