室外热环境指标的简化计算和应用研究

Simplified Method to Calculate Outer Thermal Environment Index and Its Application

利用天津市边界层观测站2008年5—9月、2009年5—7月温度、湿度、风速、湿球黑球温度(WBGT)和太阳辐射资料作相关性分析,结果表明:干球温度、相对湿度、太阳辐射、风速与湿球黑球温度具有一定的线性相关度。结合Rayman模型计算平均辐射温度,建立了以云、大气温度、相对湿度、风作为预报因子的湿球黑球温度统计方程。利用气象预报因子和WBGT统计方程,并结合GB/T 17244-1998和ISO7243标准体系,给出未来6小时劳动休息时间安排建议。结果表明WBGT计算方法实用可行,其预报产品可以减轻高温室外劳动对人体的伤害,对未来短时间内劳动日程的安排,有较好的指导作用。

By using temperature,humidity,wind speed,wet bulb globe temperature（WBGT）,and solar radiation data during May to September 2008 and May to July 2009 obtained from Tianjin boundary layer observation stations,through correlation analysis and multiple regression,a WBGT simplified calculation method is established.At the same time,by using Rayman model,based on the cloud cover the average radiation temperature is calculated,achieving the weather forecasting factors,combining with GB/T 17244-1998 and ISO 7243 standard systems,further using WBGT forecast products and giving a proposal about labor time arrangements in the next 6 hours,so as to reduce the injury from high temperature outdoor working.The results show that,the WBGT is highly related with dry-bulb temperature and solar radiation. Based on conventional meteorological data and average radiation temperature,the WBGT simplified calculation methods are practical and feasible.If the WBGT prediction products are applied to the future work schedule arrangements,there will be a better guide effect.