Thermal performance test and analysis of curtain-wall form solar heating system

With a demonstration project, tests the thermal performance of the curtain-wall form solar heating system. In the test period from January 7 to 9 in 2013, mean outdoor temperature is -7.7 ℃, the average collecting efficiency of the solar energy collection system is about 27.5%, and the average COP of heat pump as subsidiary heat source is 1.554. In the test period from March 13 to 15, mean outdoor temperature is 3 ℃, and the average COP of heat pump is 1.782. The test result of March 13th shows that the effective mean thermal efficiency of the solar energy collection system is 18.8%, and the heat loss of water tank and pipeline is comparatively less, which only takes 9.16% of effective heat collection of solar energy. When the terminal fan-coil adopts the air distribution mode of air supply downward from side, indoor heating effect is better.