毛细管辐射复合空调系统舒适性试验研究

Experimental Study on Comfort of Capillary Radiant Ceiling with Displacement Ventilation Conditioning System

本文以南京市某住宅建筑房间为研究对象,对毛细管辐射吊顶+置换新风空调系统供暖工况下的舒适性进行试验研究。结果表明:供暖工况下,室内空气温度波动较小,当天棚表面为28.3℃左右时,室内平均温度为22℃,平均相对湿度为37%,室内温湿度符合我国《暖通规范》中的I级热舒适度;垂直方向上存在温度分层现象,距地面高度1.1m与0.1m的平均温差为1.4℃满足ISO7730标准中小于3℃的要求,具有较好的热舒适性;由于天棚表面与地板表面温差较大,使得试验房间辐射不对称引起的不满意率为7%,大于ISO7730中规定的5%。

This paper takes a room of a residential building in Nanjing as the research object,and studies the thermal comfort under the heating condition of capillary radiant ceiling+displacement ventilation conditioning system.The results show that the fluctuation of indoor air temperature is relatively small under the heating condition.When the temperature of ceiling surface is about 28.3 ℃,the average indoor temperature is 22 ℃,and the average relative humidity is 37%.The indoor temperature and humidity meet the class I thermal comfort in the HVAC standard.There is a phenomenon of temperature stratification in the vertical direction.The average temperature difference between 1.1 m and 0.1 m from the ground is1.4 ℃,which meets the requirement of less than 3 ℃ in ISO 7730 standard and has good thermal comfort.Because of the large temperature difference between the ceiling surface and the floor surface,the unsatisfactory rate of the radiation in the experimental room is 7%,which is greater than 5% specified in ISO 7730.