Abstract Clothing insulation is one of the six parameters used to calculate the predicted mean vote (PMV) and the new standard effective temperature (SET*). Various studies have confirmed the effects of airspeed, wind direction, and posture on clothing insulation. However, there is a lack of clarity on how these factors affect the prediction of thermal comfort by impacting clothing insulation. This study presents the clothing insulation of eight sets of current typical clothing ensembles under various airspeeds and wind directions using a manikin experiment. Furthermore, the effects of airspeed, wind direction, and posture on the calculation of PMV and SET* were investigated. The results of the study highlight that (1) the clothing insulation for the standing posture was 10% higher than that of the sitting posture; The clothing insulation decreased with the increase in airspeed. (2) The PMV and SET* for the standing posture were higher than those of the sitting posture. The PMV value under the crosswind was, at the maximum, 0.23 larger than that under other wind directions. The SET* for the crosswind was, at a maximum, 0.85 °C higher than that under other wind directions. (3) The PMV and SET* values considering the reduction of clothing insulation due to airspeed had smaller values than those that do not consider the reduction of clothing insulation. Thus, it is essential to consider the conditions of wind direction, posture, and reduction of clothing insulation caused by airspeed to achieve reliable prediction of thermal comfort.

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服装保温对热舒适指数影响的实验研究

摘要 服装保温是用于计算预测平均投票（PMV）和新标准有效温度（SET*）的六个参数之一。各种研究已经证实了空速、风向和姿势对服装绝缘的影响。然而，尚不清楚这些因素如何通过影响服装绝缘来影响热舒适性的预测。本研究使用人体模型实验展示了八套当前典型服装套装在各种空速和风向下的服装隔热效果。此外，还研究了空速、风向和姿态对 PMV 和 SET* 计算的影响。研究结果强调：（1）站立姿势的服装保温性比坐姿高10%；随着空速的增加，服装的绝缘性降低。(2)站立姿势的PMV和SET*高于坐姿的PMV和SET*。侧风下的PMV值最大比其他风向下大0.23。侧风的 SET* 最高比其他风向高 0.85 °C。(3) 考虑到空速引起的服装绝缘降低的 PMV 和 SET* 值比不考虑服装绝缘降低的值小。因此，必须考虑风向、风姿和空速引起的服装隔热性降低等条件，以实现对热舒适性的可靠预测。侧风下的PMV值最大比其他风向下的PMV值大0.23。侧风的 SET* 最高比其他风向高 0.85 °C。(3) 考虑到空速导致的服装绝缘降低的 PMV 和 SET* 值比不考虑服装绝缘降低的值小。因此，必须考虑风向、风姿和空速引起的服装隔热性降低等条件，以实现对热舒适性的可靠预测。侧风下的PMV值最大比其他风向下大0.23。侧风的 SET* 最高比其他风向高 0.85 °C。(3) 考虑到空速导致的服装绝缘降低的 PMV 和 SET* 值比不考虑服装绝缘降低的值小。因此，必须考虑风向、风姿和空速引起的服装隔热性降低等条件，以实现对热舒适性的可靠预测。(3) 考虑到空速导致的服装绝缘降低的 PMV 和 SET* 值比不考虑服装绝缘降低的值小。因此，必须考虑风向、风姿和空速引起的服装隔热性降低等条件，以实现对热舒适性的可靠预测。(3) 考虑到空速导致的服装绝缘降低的 PMV 和 SET* 值比不考虑服装绝缘降低的值小。因此，必须考虑风向、风姿和空速引起的服装隔热性降低等条件，以实现对热舒适性的可靠预测。