考虑服装覆盖率的服装热阻计算及其对热感觉的影响

Calculation of the clothing thermal resistance considering the area covered by the garment and its effect on thermal sensation

研究了冬季三种环境温度和三种不同活动水平时的服装热阻变化及其对人体热感觉的影响,并提出一种适用于人体实际着装热阻计算方法--修正的并联法,该方法考虑了服装覆盖率的影响,将其与传统的整体法计算得到的服装热阻值进行比较,并进一步研究不同计算方法引起人体热感觉的差异。结果表明,采用修正的并联法计算得到的服装热阻值大于采用整体法的计算值,以此为输入参数计算的PMV,更接近人体的实际热感觉。

This study investigates the changes in clothing thermal resistance at three environmental temperatures and three different activity levels in winter and its impact on human thermal sensation,and proposes a method for calculating thermal resistance of actual human clothing-the modified parallel method.This method takes into account the influence of clothing coverage,comparing it with the clothing thermal resistance value calculated by the traditional global method.This study further examines the difference in human thermal sensation caused by different calculation methods.The results show that the clothing thermal resistance value calculated by the modified parallel method is greater than that calculated by the global method,and the PMV calculated with this value as the input parameter is closer to the actual thermal sensation of the human body.