不同地下水流速对土壤源热泵系统运行的影响研究

发布时间：2018-03-01 00:09

  本文关键词： 土壤源热泵 耦合 地下水流速 机组COP　出处：《低温与超导》2016年11期 　论文类型：期刊论文

【摘要】：利用Fluent建立土壤源热泵空调系统仿真模型,通过模拟结果与热响应测试所得结果的比较验证了模型的准确性。该模型耦合了土壤源热泵空调系统三大组成部分:负荷末端、热泵机组以及地埋管换热器。在此前提下,研究土壤源热泵空调系统中不同地下水流速工况下热泵机组COP的变化情况。结果表明,在常见的地下水流速0m/a至300m/a范围内,地下水流速越大,热泵机组COP越大,其中夏季制冷期间,当地下水流速从0分别增加到60m/a,100m/a,150m/a,200m/a,250m/a,300m/a时,机组COP分别增加11.54%,16.04%,19.91%,23.17%,25.50%,27.14%,从而减小了机组运行能耗。
[Abstract]:The simulation model of ground source heat pump air conditioning system is established by using Fluent. The accuracy of the model is verified by comparing the simulation results with the results of thermal response test. The model coupling the three major components of the ground source heat pump air conditioning system: load end. Heat pump units and ground heat exchangers. On this premise, the variation of COP of heat pump units under different groundwater velocity conditions in ground-source heat pump air conditioning systems is studied. The results show that in the common groundwater velocity range of 0 m / a to 300 m / a, The higher the velocity of groundwater, the larger the COP of heat pump units. During the summer refrigeration period, when the flow velocity of groundwater increases from 0 to 100 m / a to 60 m / a to 100 m / a, respectively, when the water flow velocity is increased from 100 m / a to 150 m / a / a, the unit COP increases by 11.54 m / a, 16.04 m / a and 19.91m / a respectively, and 23.1725.50% 27.144.The unit energy consumption is reduced.
【作者单位】： 南京工业大学城市建设学院;
【分类号】：TU83
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本文编号：1549547