评估3种热舒适指数在高温矿井的适用性  

Evaluation of Applicability of Three Thermal Comfort Indexes in High Temperature Mine

作　　者：吴国珊 刘何清 吴世先 柳光磊[1] WU Guoshan;LIU Heqing;WU Shixian;LIU Guanglei(School of Resources,Environment and Safety Engineering,Hunan University of Science and Technology,Xiangtan 411201,China;School of Energy and Building Environment Engineering,Guilin University of Aerospace Technology,Guilin 541004,China)

机构地区：[1]湖南科技大学资源环境与安全工程学院,湖南湘潭411201 [2]桂林航天工业学院能源与建筑环境学院,广西桂林541004

出　　处：《矿业工程研究》2022年第1期31-36,共6页Mineral Engineering Research

基　　金：国家自然科学基金资助项目(51474105)。

摘　　要：通过人体实验研究湿球黑球温度(Wet Bulb Globe Temperature,WBGT)、预测热应激模型(Predicted Heat Strain,PHS)、不舒适指数(Discomfort Index,DI)这3个热舒适指数是否适用于高温矿井.在4个不同的高温矿井热湿环境(26℃/90%,30℃/90%,34℃/90%,36℃/90%)下,测量了模拟重度劳动(跑步速度5.5 km/h)的14名男性受试者的口腔温度和皮肤温度,获取了受试者主观热感觉投票(Thermal Sensation Vote,TSV).结果表明:WBGT,DI这2个指数与不同温度环境下热感觉具有很强的相关性,但无法反应恒定温度环境下热感觉随劳动时间的变化;当温度恒定时,PHS模型预测的总失水量(SW_(totg))与人体瞬时热感觉投票具有很强的相关性,但它在温湿度为34℃/90%和36℃/90%时不存在显著性差异;因此,WBGT,SW_(totg)/PHS和DI这3个指数只能用于评价高温矿井热环境.对于人体热舒适性评价还需要研究新的指数.This study aims to study whether the Wet Bulb Globe Temperature(WBGT),Predicted Heat Strain(PHS)and Discomfort Index(DI)are suitable for evaluating the thermal environment of high temperature mine.The oral temperature and skin temperature of 14 male subjects simulating heavy labor(running speed is 5.5 km/h)are measured in four hot and humid environment(26℃/90%,30℃/90%,34℃/90%,36℃/90%).Subjects’Thermal Sensation Votes(TSV)are obtained.Results show that the WBGT and DI indexes have strong correlation with human thermal sensation under different temperature environment,but they cannot reflect the change of thermal sensation with labor time under a constant temperature environment.When the temperature is constant,the total water loss(SW_(totg))predicted in PHS has a strong correlation with the change of thermal sensation with labor time,but there is no significant difference between 34℃/90%and 36℃/90%.Therefore,WBGT,SW_(totg)/PHS and DI can only be used to evaluate the thermal environment of high-temperature mines.For human thermal comfort,new index needs to be studied.

关 键 词：热舒适指数 高温矿井 热感觉 

分 类 号：TD78[矿业工程—矿井通风与安全]