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引入制热季节性能系数(HSPF)指标,基于武汉地区太阳辐射和气温条件,对某酒店制取生活热水的双源热泵太阳能热水系统能效在不同切换温度下的变化规律进行分析,确定双源热泵热水系统最佳切换温度并进行设备配置。结果表明,最佳切换温度Tqh范围为6.3~6.5℃,对应的HSPF值为3.0~3.1,双源热泵太阳能热水系统制取生活热水的能效最高,在满足生活热水需求的情况下设备能耗处于最低值;对应配置蓄热水箱有效使用容积为87.5m~3,太阳能集热器集热面积1924m~2。
Based on the solar radiation and temperature conditions in Wuhan, the change law of energy efficiency of solar water heating system of dual-source heat pump system using hot water in a hotel under different switching temperatures was analyzed, and the double Source heat pump hot water system, the best switching temperature and equipment configuration. The results showed that the optimal switching temperature Tqh ranged from 6.3 ℃ to 6.5 ℃ and the corresponding HSPF value ranged from 3.0 to 3.1. The dual-source heat pump solar hot water system produced the highest energy efficiency of domestic hot water. When the domestic hot water demand was met, Energy consumption at the lowest value; the corresponding configuration of the effective use of heat storage tank volume of 87.5m ~ 3, solar collector collector area of 1924m ~ 2.