JiSMART2021—055: Evaluation of Thermal Sensation of Exposed People in Different Locations by Modular Radiant Heating System

Abstract

In order to understand the influence of thermal radiation exposure distance and different orientation on human thermal comfort, the researchers conducted an experiment in a climate-controlled room, recruited 20 college students as volunteers, and investigated their physiological and psychological responses. And Asymmetrical thermal Sensation Votes (ATSVs) and Asymmetrical Thermalacceptability Votes (ATSVs) are set up. It is found that with the increase of radiation plate area and temperature, the asymmetry caused by radiation area is more obvious than that caused by the increase of radiation intensity. Under different working conditions, the skin temperature difference of left and right hind arms and left and right legs is the largest, and the person who is close to the radiation plate oblique to the higher skin temperature, the skin temperature difference is also the smallest, the two skin temperature difference can be controlled at about 0.5℃; By comparing the TSV and ATSV, TAV and ATVS of people in different positions, it is found that the position of people away from the cold radiation envelope and not facing the thermal radiation plate is more comfortable, which brings the least asymmetric thermal impact.