Energetic and Exergetic Performances Simulating of GSHP Greenhouse Cooling System in Northern China
文献类型： 会议论文
第一作者： Lilong Chai
作者： Lilong Chai 1 ; Chengwei Ma 2 ; Gangyi Xu 1 ; Mingchi Liu 1 ; Yong Xu 1 ;
作者机构： 1.Vegetable Research Center, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China
2.College of Water Conservancy & Civil Engineering, China Agricultural University, Beijing 100083, China
关键词： greenhouse;ground source heat pump;cooling;exergy efficiency;COP
会议名称： IFIP TC 5/SIG 5.1 conference on computer and computing technologies in agriculture
主办单位：
页码： 74-84
摘要： The Energetic and Exergetic performances evaluating models were built for a agricultural greenhouse cooling with groundwater-style GSHP system (GSHPs) in Northern China. The Exergy destruction (Ex_(dest)), Exergy efficiency(e) and coefficient of performance (COP) were estimated and presented based on summer cooling test monitored data and the simulation models. Analyzed results indicate that the evaporator has the highest Exergy efficiency compared with other sections of the system, which reached 92% during cooling test that means the evaporator has a brilliant performance of reversibility in cooling mode. The condenser and compressors have lower reversibility relatively. Generally, GSHPs has an Exergy efficiency of 36%. Besides, COP of GSHPs cooling in greenhouse reached 3.09, which is higher than 2.0 of conventional air source heat pump systems COP by 50%.
分类号： S1`TP3
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