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太阳能热水系统约可减少50%的电能消耗,如果把热泵作为一种辅助热源设计到该系统中,电能的消耗会更少,因为系统运行时热泵会降低集热器的进口温度,集热器会更加高效的运行。通过运用TRNSYS软件,对传统太阳能热水系统和热泵辅助太阳能热水系统进行模拟对比,计算时两个系统运行期间给用户传送的热能相等,计算结果表明:热泵辅助太阳能热水系统的集热效率要高于传统太阳能热水系统的集热效率,并且热泵辅助太阳能热水系统运行所消耗的电能要低于传统太阳能热水系统所消耗的电能,全年节约电能约10354 MJ。
Solar hot water systems reduce energy consumption by about 50%. If a heat pump is designed into the system as an auxiliary heat source, the power consumption will be less because the heat pump will reduce the inlet temperature of the collector when the system is running. The device will run more efficiently. By using TRNSYS software to simulate the traditional solar hot water system and heat pump auxiliary solar hot water system, the heat energy transmitted to the users during the operation of the two systems is equal. The calculation results show that the heat collecting efficiency of the heat pump assisted solar hot water system Which is higher than that of the traditional solar hot water system and the heat pump auxiliary solar hot water system consumes less energy than that of the traditional solar hot water system and saves about 10354 MJ of electricity in the whole year.