title: Our experience in the evaluation of the thermal comfort during the space flight and in the simulated space environment.
abstract: The paper presents the results of the mathematical modelling the effects of hypogravity on the heat output by the spontaneous convection.  The theoretical considerations were completed by the experiments "HEAT EXCHANGE 1" performed on the biosatellite "KOSMOS 936".  In the second experiment "HEAT EXCHANGE 2" accomplished on the board of the space laboratory "SALYUT 6" was studied the effect of the microgravity on the thermal state of a man during the space flight.  Direct measurement in weightlessness prowed the capacity of the developed electric dynamic katathermometer to check directly the effect of the microgravity on the heat output by the spontaneous convection.  The role of the heat partition impairment's in man as by the microgravity, so by the inadequate forced convection are clearly expressed in changes of the skin temperature and the subjective feeling of the cosmonaut's thermal comfort.  The experimental extension of the elaborated methods for the flexible adjustment of the thermal environment to the actual physiological needs of man and suggestions for the further investigation are outlined.
authors.affiliation: Department of Physiology, Brno, Czechoslovakia.
authors.forename: L
authors.initials: L
authors.lastname: Novak
mesh_terms: D001833:Body Temperature Regulation / Q000502:physiology*; D018481:Convection; D005528:Foot / Q000502:physiology; D006358:Hot Temperature; D006801:Humans; D008962:Models, Theoretical; D012881:Skin Temperature / Q000502:physiology*; D013026:Space Flight; D013816:Thermodynamics; D014893:Weightlessness / Q000009:adverse effects*