以低温热水作为供暖热源、地板作为辐射媒介,测试太阳热水器和热泵热水器单独运行和联合运行的供回水温度,评价各供热方案的能效比和经济性。结果表明,太阳能和热泵热水器的交替供热方式效果最佳,单位耗能制热量比单独使用热泵热水器提高81.5%,而每小时平均运行花费降低3.95%。 Using low temperature hot water as heating source and floor as radiation medium, the temperature of water supply and return of solar water heaters and heat pump water heaters operating separately and jointly were tested, and the energy efficiency and economy of each heating scheme were evaluated. The results show that the solar and heat pump water heaters have the best effect of alternating heat supply. The energy consumption per unit heat output is increased by 81.5% compared with the heat pump water heater alone, while the average operating cost per hour is reduced by 3.95%.