Effect of lateral wall thermal radiation on human thermal comfort

Taking 24 students dressed in summer indoor clothing with a thermal resistance of 0.6 clo as the subjects, investigates the effect of exposure duration on human thermal response and thermal comfort under the condition of neutral air temperature of 26 ℃ and lateral wall thermal radiation by artificial climate chamber experiment. The results show that with the increase of exposure duration in non-uniform radiation environment, the thermal sensation of the subjects decreases and approaches to neutral, their thermal comfort and thermal acceptability improve, the average skin temperature does not change significantly, and the heart rate decreases slightly. The radiant temperature asgmmetry limits of 5% local thermal discomfort are 1.7,1.9,4.5 ℃ at neutral ambient temperature, respectively, when the exposure duration is 60,120,180 min. Obtains the effect weights of thermal sensation and thermal comfort of different parts on whole body thermal sensation and thermal comfort, and establishes the evaluation models of human thermal sensation and thermal comfort, which are suitable for the condition of neutral air temperature of 26 ℃ and lateral wall thermal radiation.