侧墙热辐射对人体热舒适的影响
Effect of lateral wall thermal radiation on human thermal comfort
摘要：
通过人工气候室实验，以24名身着热阻为0.6 clo夏季室内服装的受试者为研究对象，研究了在中性空气温度（26 ℃）、侧墙热辐射条件下不同暴露时间对人体热反应与热舒适的影响。结果表明：随着受试者在不均匀辐射环境中暴露时间的增加，受试者热感觉逐渐降低并趋近中性，热舒适度和热可接受度逐渐增大，平均皮肤温度无显著变化，心率略有降低；中性环境温度下，暴露时间为60、120、180 min时，5%局部热不舒适的不对称辐射温度限值分别为1.7、1.9、4.5 ℃。得到了不同部位热感觉、热舒适对全身热感觉、热舒适的影响权重，建立了适用于中性环境温度、侧墙热辐射环境下的人体热感觉和热舒适评价模型。
Abstract：
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.
Keywords:thermal radiation, lateral wall, local thermal exposure, exposure duration, radiant temperature asgmmetry, thermal comfort, thermal sensation