热系统内表面温度对空间有效温度场的影响

Impact of Heating Systems and Wall Surface Temperatures on Room Operative Temperature Fields

通过将平均辐射温度引入到建筑热舒适性传热计算中的方法简化建筑热舒适性和能耗的相互关系及其计算公式 ,进行平均辐射温度和房间的有效温度分布情况对热舒适性的影响分析。用这种方法来比较在不同热辐射换热和对流换热工况下变墙面温度时建筑内的热舒适性。理论分析和辐射、对流换热及其结合工况的热舒适性测试数据结果分析表明 ,热舒适性可以用平均辐射温度和有效温度来表征。用平均辐射温度和有效温度分析计算热建筑舒适性的方法 ,在优化建筑热系统的设计时 ,也有非常重要的参考价值。

A methodology to incorporate mean radiant temperature into thermal calculations is persented to simplify thermal comfort evaluation and to predict power comsumpion. The effect of mean radiant and operative temperature distribution throughout a room on thermal comfort is discussed.the thermal comfort is also compared when wall surface temperatures that resulted from different radiant heating and convective heating systems change. The theoratical analysis and the tested data of thermal comfort resulted from radiant heating systems,convective heating systems and combination of radiation and convective heating systems show that the thermal comfort can be indicated by mean radiant and operation temperture. And when modifying the designs of the heating systems,the mothodology presented in this paper might play an important role.