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自主设计了地源热泵热水/空调冷热联供系统和单纯的地源热泵供热水系统,并将其应用于高层建筑中。运用单因素方法,研究循环介质流量等对热泵系统运行特性的影响,确定最佳流量,并通过测试计算系统的能耗。结果表明,在地源热泵热水/空调冷热联供系统中,采用地源制热水时的机组能效比和系统能效比分别为4.7和4.2,冷热联供时的机组综合能效比和系统综合能效比分别为8.63和6.39;系统全年制热水耗电量为6.35 kW.h/m3,与电锅炉加热方式和太阳能+电辅助加热方式相比,可分别节省82.2%和46.7%的电量。在单纯的地源热泵供热水系统中,机组能效比和系统能效比分别为4.8和4.3,全年制热水总耗电量为11.13 kW.h/m3,与电锅炉加热方式和太阳能+电辅助加热方式相比,可分别节省74.69%和24%的电量。由此说明,地源热泵集中供热水系统应用于高层建筑的节能效果显著。
Independent design of the ground source heat pump hot water / air conditioning hot and cold supply system and a simple ground source heat pump water heating system, and its application in high-rise buildings. The single factor method is used to study the influence of circulation medium flow on the operation characteristics of heat pump system, determine the optimal flow rate, and calculate the system energy consumption through testing. The results show that the unit energy efficiency ratio and system energy efficiency ratio of ground-sourced hot water are 4.7 and 4.2, respectively, in the combined heat and water system of ground source heat pump hot water / air conditioner, The energy efficiency of the system is 8.63 and 6.39, respectively. The annual power consumption of the system is 6.35 kW.h / m3, which can save 82.2% and 46.7% respectively compared with the electric boiler heating mode and the solar + electric auxiliary heating mode. Of electricity. In a simple ground source heat pump water heating system, unit energy efficiency ratio and system efficiency were 4.8 and 4.3, the annual total power consumption of 11.13 kW.h / m3, with the electric boiler heating and solar + Electric auxiliary heating compared to 74.69% and 24% can be saved electricity. This shows that the ground source heat pump water heating system applied to high-rise buildings, significant energy-saving effect.