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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
Source PublicationAPPLIED ENERGY
Volume121Pages:96-103
AbstractWith 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.
SubtypeArticle
KeywordR1234yf Vapor Compression Refrigeration Cycle Ejector Expansion Improvement
WOS HeadingsScience & Technology ; Technology
DOI10.1016/j.apenergy.2014.01.079
WOS Subject ExtendedEnergy & Fuels ; Engineering
WOS KeywordVAPOR COMPRESSION REFRIGERATION ; HEAT-PUMP SYSTEMS ; 2-PHASE EJECTOR ; EXERGY ANALYSIS ; EXPANDER ; DEVICE ; OPTIMIZATION ; ENERGY ; FLUID
Indexed BySCI
Language英语
WOS SubjectEnergy & Fuels ; Engineering, Chemical
WOS IDWOS:000335429500009
Citation statistics
Cited Times:59[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/10614
Collection中国科学院广州能源研究所
Affiliation1.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
Recommended Citation
GB/T 7714
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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