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

Energies

Zhiyong Yang¹  Yiping Wang¹ 

[1] School of Chemical Engineering and Technology, Tianjin University, 300072, Tianjin, China; E-Mail:

关键词: building integration;    solar roof tiles;    heat pump;    building space heating;    simulation;   

DOI  :  10.3390/en4030504

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2011 by the authors; licensee MDPI, Basel, Switzerland.