EFFECTS OF AIR MOVEMENT ON PERSPIRATION AND THERMAL COMFORT IN SUMMER IN A CLIMATE CHAMBER

在温度为30℃、温度为60%的气候室中，夏季白天在坐着的受试者地面上方1.5m处、前方2.0m处各安装一台电风扇，各运行、停止30分钟。分析了局部排汗率和热舒适投票对空气运动变化的响应。结果表明：(1)跑步时脸部前方30 cm的平均气流速度和湍流强度分别为0.71m/s和37.1%，停止时为0.043m/s和46.5%;(2)两种情况下，热感觉投票在较暖的一侧，排汗感觉投票在不出汗的一侧，而在中性一侧；(3)空气运动在停止时被评价为“太少”，并被评价为“凉爽”、“清爽”、“使人凉爽”；(4)除“出汗”外，跑步后的感觉有所改善，但“出汗”在第二次停止时最差；(5)所有实验的局部出汗率在0.00 ~ 0.20（mg/cm2/min）之间，但在实验中波动不同；(6)同一实验中跑步和停止的累积出汗率相互关联系数为0.71 ~ 0.96。(7)投票时的排汗感觉并不一定反映出排汗率；(8)在某些情况下，排汗率越大，热感觉越热；(9)在某些情况下，跑步时排汗率越大，热舒适感觉越舒服；（10）在某些情况下，停止时排汗率越大，热舒适感觉越不舒服。（11）对热环境评价文献的梳理表明，热环境评价在研究之初，主观汗液感觉被认为是重要的。

In a climate chamber controlled at 30℃ and 60%, an electoric fan attached 1.5m above the floor and 2.0m forward the sitting subject was run and stopped for 30 minutes each in the daytime in summer. The responses of local sweat rates and thermal comfort votes to the change of air movement were analysed. The results were, (1) Mean air velocity and turbulent intensity 30 cm forward the face was 0.71m/s and 37.1% respectively for the running and 0.043m/s and 46.5% respectively for the stopping, (2) For both conditions, thermal sensation votes were at the warmer side than neutral and sensation votes of perspiration were at the side of not-sweating than neutral, (3) The air movement were evaluated 'too little' significantly for the stopping and evaluated 'cool', 'refreshing', 'making cool', and 'making comfortable' for the running, (4) The sensation except for 'sweltering' were improved after the running but 'sweltering' got the worst for the second stopping, (5) The local sweat rates were between 0.00 and 0.20(mg/cm2/min.) for the all experiments but fluctuated differently among the experiments, (6) The cumulative sweat rates for the running and the stopping in the same experiment were correlated each other with coefficients of 0.71-0.96, (7) The sensation of perspiration did not always reflect the sweat rate when voted, (8) In some eases for the larger sweat rate, the larger the sweat rate was, the hotter the thermal sensation was, (9) In some cases for the running, the larger the sweat rate was, the more comfortable the thermal comfort sensation was, (10) In some cases for the stopping, the larger the sweat rate was, the less comfortable the thermal comfort sensation was, (11) The survey on the literatures on evaluation of thermal environment shows that the subjective sensation of perspiration was regarded as important at the beginning of the field.