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介绍太阳能水源热泵复合系统的工作原理和构成及其运行模式,并建立该系统的分析模型和太阳能集热系统的仿真数学模型,对太阳能集热系统进行模拟和试验测试,并依据试验测试和模拟结果进行分析。该系统是一种节能的建筑冷热源系统,系统制热COP在3.2~3.6之间变化,蓄冷时的综合性能COP在5.8~6.2之间变化;太阳能集热系统的接通标准温度T on设为20℃时效率最高,切断标准温度T off不宜低于8℃;系统蓄冷运行模式比释冷运行模式的效率高约25%;各循环水泵的损率达到约22%,为提高系统效率,蒸发器侧进出口平均水温应控制在5~19℃。
The working principle, composition and operation mode of solar water source heat pump composite system are introduced. And the analytical model of the system and the simulation mathematical model of solar collector system are established. The solar energy heat collecting system is simulated and tested. According to the test and Simulation results were analyzed. The system is an energy-saving building cold and heat source system, the system heating COP varies from 3.2 to 3.6, and the comprehensive performance during cold storage COP varies from 5.8 to 6.2. The standard temperature T on of the solar collector system Set to 20 ℃, the highest efficiency, cutting off the standard temperature T off should not be less than 8 ℃; system cooling operation mode than the cooling mode of operation efficiency of about 25%; the circulating pump loss rate of about 22%, to improve the system Efficiency, the average inlet and outlet evaporator temperature should be controlled at 5 ~ 19 ℃.