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The paper is dedicated to adequacy analysis of Simulation Model of Human Body Thermoregulation System (HTSSM), intended for design of air/space Autonomous Life Support System (ALSS) The formal description of the HTSSM consists 51 equations to describe different body compartments, which consider different properties and individualities of human body as well as complexity dynamic characteristics of the studied functional system, and also includes the equation, which describes heat exchange processes in the heart and lung area. Active heat exchange mechanisms of thermoregulation system are described on the basis of fuzzy set theory. This paper discusses the HTMSS and its applications for: The analysis of a human heat state under heat stress conditions for a helmet area ventilation system design. The analysis of the temperature/moisture fields in the extra-vehicular suit for design of thermal control system. The results of computed experiments obtained using the HTMSS are also reviewed.

This paper deals with the Complex Simulation Model of Human Organism (HOCSM) intended for various problems' solutions of the Manned Space Objects Ecological and Technical System (ETS) development. Among the fundamental problems of the ETS development requiring the HOCSM adaptation are: (a) forming the mass and energetic loads of spacecraft crew for the simulation of the ETS functions; (b) the investigation of environment effects on a human organism and its responses; (c) the analysis of interactions between the crew and the individual life support system or its functional blocks; (d) the decisions of design problems for development of the anti exposure and space suits. The HOCSM, under consideration, is based on the general theory of functional systems and includes formalistic descriptions of following human organism functional systems: a cardiovascular systems, an external respiration system, a thermoregulation system and a water-salt balance system.