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Performance characteristics of R1234yf ejector-expansion refrigeration cycle
Li, Huashan1,2; Cao, Fei3; Bu, Xianbiao1; Wang, Lingbao1; Wang, Xianlong1
2014-05-15
发表期刊APPLIED ENERGY
卷号121页码:96-103
摘要With a constant-pressure mixing ejector, the performance characteristics of an ejector-expansion refrigeration cycle (EERC) using R1234yf as refrigerant have been investigated. Also, the performance of R1234yf and R134a in the EERC has been compared. The study shows that, at condensing temperature of 40 degrees C and evaporation temperature of 5 degrees C, the coefficient of performance (COP) and volumetric cooling capacity (VCC) of the R1234yf EERC peak up to 5.91 and 2590.76 kJ/m(3), respectively. Compared with the standard refrigeration cycle the R1234yf EERC generally has a better performance, especially at the condition of higher condensing temperature and lower evaporation temperature. The COP and VCC improvements of the R1234yf EERC over the standard refrigeration cycle are also greater than that of the R134a cycle. In addition, the ejector design parameters including the pressure drop in suction nozzle, area ratio and component efficiencies on the R1234yf EERC performance have been analyzed. (C) 2014 Elsevier Ltd. All rights reserved.
文章类型Article
关键词R1234yf Vapor Compression Refrigeration Cycle Ejector Expansion Improvement
WOS标题词Science & Technology ; Technology
DOI10.1016/j.apenergy.2014.01.079
研究领域[WOS]Energy & Fuels ; Engineering
关键词[WOS]VAPOR COMPRESSION REFRIGERATION ; HEAT-PUMP SYSTEMS ; 2-PHASE EJECTOR ; EXERGY ANALYSIS ; EXPANDER ; DEVICE ; OPTIMIZATION ; ENERGY ; FLUID
收录类别SCI
语种英语
WOS类目Energy & Fuels ; Engineering, Chemical
WOS记录号WOS:000335429500009
引用统计
被引频次:56[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/10614
专题中国科学院广州能源研究所
作者单位1.Chinese Acad Sci, CAS Key Lab Renewable Energy, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Jimei Univ, Coll Mech & Energy Engn, Xiamen 361021, Peoples R China
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Li, Huashan,Cao, Fei,Bu, Xianbiao,et al. Performance characteristics of R1234yf ejector-expansion refrigeration cycle[J]. APPLIED ENERGY,2014,121:96-103.
APA Li, Huashan,Cao, Fei,Bu, Xianbiao,Wang, Lingbao,&Wang, Xianlong.(2014).Performance characteristics of R1234yf ejector-expansion refrigeration cycle.APPLIED ENERGY,121,96-103.
MLA Li, Huashan,et al."Performance characteristics of R1234yf ejector-expansion refrigeration cycle".APPLIED ENERGY 121(2014):96-103.
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