Impact of cold indoor thermal environmental conditions on human thermal response  

作　　者：刘红 谭青 李百战 谈美兰 马小磊 

机构地区：[1]Key Laboratory of the Three Gorges Reservoir Region's Eco-Environment of Ministry of Education,Chongqing University [2]The Faculty of Urban Construction and Environmental Engineering,Chongqing University

出　　处：《Journal of Central South University》2011年第4期1285-1292,共8页中南大学学报（英文版）

基　　金：Project(50838009) supported by the National Natural Science Foundation of China

摘　　要：To explore the thermal responses under the non-thermal equilibrium cold environmental conditions,a laboratory study was conducted in climate chamber.The local skin temperatures and thermal sensation of 20 subjects were recorded at 10 min intervals for 90 min under air temperatures of 7.4,9.1,11 and 15 °C.The results show that both local skin temperatures and mean skin temperature decrease not only with the drop of ambient air temperature but also with the exposure time.Local thermal sensation and overall the thermal sensation have the similar temperature-varying and time-varying characteristics.Predicted mean vote(PMV) model cannot correctly predict the thermal sensation under non-thermal equilibrium cold environment.The correlation between local thermal sensation and local skin temperatures shows that thermal sensation is closely related to skin temperature.Skin temperature is an effective indicator of thermal sensation.A linear relationship model between overall thermal sensation and mean skin temperature,considering both ambient temperature and exposure time,was established in the non-thermal equilibrium cold environment,which makes the evaluation of thermal sensation more objective.To explore the thermal responses under the non-thermal equilibrium cold environmental conditions, a laboratory study was conducted in climate chamber. The local skin temperatures and thermal sensation of 20 subjects were recorded at 10 min intervals for 90 min under air temperatures of 7.4, 9.1, 11 and 15 ~C. The results show that both local skin temperatures and mean skin temperature decrease not only with the drop of ambient air temperature but also with the exposure time. Local thermal sensation and overall the thermal sensation have the similar temperature-varying and time-varying characteristics. Predicted mean vote （PMV） model cannot correctly predict the thermal sensation under non-thermal equilibrium cold environment. The correlation between local thermal sensation and local skin temperatures shows that thermal sensation is closely related to skin temperature. Skin temperature is an effective indicator of thermal sensation. A linear relationship model between overall thermal sensation and mean skin temperature, considering both ambient temperature and exposure time, was established in the non-thermal equilibrium cold environment, which makes the evaluation of thermal sensation more objective.

关 键 词：indoor thermal environment thermal comfort thermal sensation skin temperature human thermal response 

分 类 号：R131[医药卫生—劳动卫生]