天棚辐射制冷采暖系统
Ceiling cooling and heating system

　　天棚辐射制冷采暖系统是利用厚重的建筑楼板进行室内制冷或采暖。即将聚丁烯管（PB）预埋在混凝土楼板中，通过管道中的水流循环在夜间把冷量或热量储存在楼板中，楼板中的冷量或热量在白天工作时间进行释放，起到削峰填谷的作用，减小了主机的装机功率，主机可以在夜间运行，降低运行费用。同时因为该系统需要的水温与传统系统不同，故可以使热泵机组变工况运行，提高制热泵机组的COP值。

　　Through the water transportation in piping system in the floor concrete, the heat and cool can save in the concrete at night and release the energy at day. This can reduce the running cost for the low water temperature compare with traditional system, adding the COP of heating pump.