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Inicio  /  Energies  /  Vol: 4 Núm: 3Pages3 Par: March (2011)  /  Artículo
ARTÍCULO
TITULO

Building Space Heating with a Solar-Assisted Heat Pump Using Roof-Integrated Solar Collectors

Zhiyong Yang    
Yiping Wang and Li Zhu    

Resumen

A solar assisted heat pump (SAHP) system was designed by using a roof-integrated solar collector as the evaporator, and then it was demonstrated to provide space heating for a villa in Tianjin, China. A building energy simulation tool was used to predict the space heating load and a three dimensional theoretical model was established to analyze the heat collection performance of the solar roof collector. A floor radiant heating unit was used to decrease the energy demand. The measurement results during the winter test period show that the system can provide a comfortable living space in winter, when the room temperature averaged 18.9 °C. The average COP of the heat pump system is 2.97 and with a maximum around 4.16.

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