低温热水供暖室内热环境监测及热舒适性评价

Indoor Thermal Environment Monitoring and Thermal Comfort Evaluation of Low Temperature Hot Water Heating System

设计了一套低温供暖系统并进行了连续性测试,研究结果表明,采用45.0℃的供水温度时,室外温度在-1.0～10.8℃变化对室内平均温度的变化影响不显著;室内温度稳定后,人体站立时头部与脚踝处的平均温差为2.8℃;散热器表面温度的变化会引起围护结构内表面温度小于1.0℃的波动,并且该内表面温度在18.4～20.2℃范围内变化是受外窗太阳辐射热的影响;通过Airpak软件模拟可知室内舒适性较好。

A set of low temperature heating system was designed and the continuity test was carried out.The results indicated that:when the water supply temperature is 45℃,the impact of outdoor temperature at 1.0~10.8℃on the indoor average temperature was nonsignificant;the difference of the average temperature between tester’head and ankle was 2.8℃when the indoor average temperature was stable;the variation of radiator surface temperature could cause the temperature fluctuation of interior envelope surface but the degree could only be±1℃,and the changing of inner surface temperature between 18.4℃and 20.2℃could be impacted by the solar heat of exterior windows.Airpak simulation shows that the indoor thermal comfort is better.