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Influences of area ratio and surface roughness on homogeneous condensation in ejector primary nozzle
Wang C(王辰); Wang L(王雷); Zou T(邹涛); Zhang, Hailun
Department工业控制网络与系统研究室
Source PublicationENERGY CONVERSION AND MANAGEMENT
ISSN0196-8904
2017
Volume149Pages:168-174
Indexed BySCI ; EI
EI Accession number20174104248883
WOS IDWOS:000411537200014
Contribution Rank2
Funding OrganizationNatural Science Foundation of Shandong Province [ZR2016FM24] ; National Natural Science Foundation of China [61374112] ; Fundamental Research Funds of Shandong University [2014JC022]
KeywordEjector Primary Nozzle Area Ratio Surface Roughness Homogeneous Condensation
AbstractHomogeneous condensation inside the ejector has been ignored by numerous researchers. In this paper, the wet steam model was utilized to study the influences of nozzle area ratio and surface roughness on homogeneous condensation in a primary nozzle. A substantial amount of latent heat is released during the homogeneous condensation process to increase static pressure and reduce Mach number. The increase of nozzle area ratio reduces condensation intensity and lowers nozzle pressure but increases liquid mass fraction. Furthermore, with the growth of surface roughness, the slightly increased dryness fraction is almost ineffective for alleviating erosion caused by tiny droplets; the slight decrease in mass flow. rate will reduce ejector performance to some extent, while the sharp increase of entropy generation results in more energy wastes. Therefore, nozzle area ratio and surface roughness should be carefully designed to alleviate potential condensation and enhance ejector performance at the same time. (C) 2017 Elsevier Ltd. All rights reserved.
Language英语
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectThermodynamics ; Energy & Fuels ; Mechanics
WOS KeywordWET STEAM FLOW ; REFRIGERATION SYSTEM ; NONEQUILIBRIUM CONDENSATION ; ENTROPY GENERATION ; HEAT-TRANSFER ; THERMO-COMPRESSOR ; WATER-VAPOR ; PERFORMANCE ; PRESSURE ; R134A
WOS Research AreaThermodynamics ; Energy & Fuels ; Mechanics
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sia.cn/handle/173321/21090
Collection工业控制网络与系统研究室
Corresponding AuthorWang L(王雷); Zou T(邹涛)
Affiliation1.School of Control Science and Engineering, Shandong University, Jinan, 250061, China
2.Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
Recommended Citation
GB/T 7714
Wang C,Wang L,Zou T,et al. Influences of area ratio and surface roughness on homogeneous condensation in ejector primary nozzle[J]. ENERGY CONVERSION AND MANAGEMENT,2017,149:168-174.
APA Wang C,Wang L,Zou T,&Zhang, Hailun.(2017).Influences of area ratio and surface roughness on homogeneous condensation in ejector primary nozzle.ENERGY CONVERSION AND MANAGEMENT,149,168-174.
MLA Wang C,et al."Influences of area ratio and surface roughness on homogeneous condensation in ejector primary nozzle".ENERGY CONVERSION AND MANAGEMENT 149(2017):168-174.
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