Human thermal adaptation in severe cold zone (3):Experimental study on human thermal responses in radiator heating environment

To study the human thermal psychological and physiological responses to indoor temperature when outdoor temperature varies in different heating periods, carries out an experiment in a microclimate chamber with a radiator. Tests the physiological parameters of the subjects including skin temperature, heart rate and blood pressure, and conducts a questionnaire survey on their thermal sensation and thermal comfort. The results show that people easily accept cool indoor environment with lower expectation when the outdoor temperature is decreasing. Therefore, they feel warmer at the same indoor temperature. When the outdoor temperature is similar, the skin temperatures and heart rates of the subjects drop as the indoor temperature decreases. When the indoor temperature is constant, the arm skin temperatures and heart rates of the subjects increase as the outdoor temperature decreases. The result indicates that the subjects have thermal adaptation in the cooler environment when the outdoor temperature is lower. The experiment provides a supportive evidence for psychological adaptation and physiological acclimation of people in severe cold zone.