蓄热型空气式太阳能集热-空气源热泵复合供暖系统在寒冷地区的应用研究

设计了一种蓄热型空气式太阳能集热-空气源热泵复合供暖系统。该系统具有太阳能供热、太阳能辅助热泵供热和热泵供热3种运行模式,可根据环境工况及供暖负荷的变化自动切换运行模式,保证室内供暖的稳定性。在通辽市的实验研究结果表明:在整个供暖季内,该系统可持续提供42.6℃的热水,维持室内温度在21.3~24.1℃之间;平均COP为3.6,实现了太阳能的高效利用,减少了常规能源的消耗,可节约标准煤21 t;与电供暖、燃煤锅炉供暖及燃气锅炉供暖系统相比,年运行费用可分别降低62.2%、49.1%、46.2%,回收期分别为4.7、9.8、10.3 a。

Application of heat storage air type solar collector and air-source heat pump composite heating systems in cold zone

Designs a heat storage air type solar collector and air-source heat pump composite heating system. This system operates in three modes of solar heating, solar assisted heat pump heating and heat pump heating. It can automatically switch the operation mode according to the change of environmental conditions and heating loads to ensure the stable indoor heating. The experimental results in Tongliao area show that: in the whole heating season, the system can continuously provide 42.6 ℃ hot water and maintain the indoor temperature between 21.3 ℃ and 24.1 ℃. The average COP is 3.6, which realizes the efficient utilization of solar energy, greatly reduces the consumption of conventional energy, and saves 21 t standard coal. Compared with electric heating, coal-fired boiler heating and gas-fired boiler heating systems, the annual average operation cost can be reduced by 62.2%, 49.1% and 46.2% respectively, and the payback period is 4.7, 9.8 and 10.3 years respectively.