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Lokalni koeficijenti prelaza toplote pri isparavanju 1,1,1,2-tetrafluoretana (R-134a) u pločastom razmenjivaču toplote

dc.creatorŽivković, Emila
dc.creatorKabelac, Stephan
dc.creatorŠerbanović, Slobodan P.
dc.date.accessioned2021-03-10T11:02:10Z
dc.date.available2021-03-10T11:02:10Z
dc.date.issued2009
dc.identifier.issn0352-5139
dc.identifier.urihttp://TechnoRep.tmf.bg.ac.rs/handle/123456789/1382
dc.description.abstractThe evaporation heat transfer coefficient of the refrigerant R-134a in a vertical plate heat exchanger was investigated experimentally. The area of the plate was divided into several segments along the vertical axis. For each of the segments, the local value of the heat transfer coefficient was calculated and presented as a function of the mean vapor quality in the segment. Owing to the thermocouples installed along the plate surface, it was possible to determine the temperature distribution and vapor quality profile inside the plate. The influences of the mass flux, heat flux, pressure of system and the flow configuration on the heat transfer coefficient were also taken into account and a comparison with literature data was performed.en
dc.description.abstractU ovom radu je eksperimentalno ispitivan koeficijent prelaza toplote pri dvofaznom toku rashladnog fluida 1,1,1,2-tetrafluoroetana (R-134a) u vertikalnom pločastom razmenjivaču toplote. Površina ploče je podeljena u nekoliko segmenata duž vertikalne ose. U svakom od segmenata izračunata je lokalna vrednost koeficijenta prelaza toplote i prikazana u funkciji srednjeg stepena suvoće u segmentu. Zahvaljujući termoparovima postavljenim duž površine ploče, bilo je moguće odrediti temperaturne profile i raspodelu stepena suvoće duž ploče. Ispitivani su uticaji masenog fluksa, toplotnog fluksa, radnog pritiska i konfiguracije toka fluida na koeficijent prelaza toplote i izvršeno je poređenje sa odgovarajućim literaturnim podacima.sr
dc.publisherSerbian Chemical Society, Belgrade
dc.relationGEA Ecoflex GmbH, Sarstedt, Germany
dc.relationGerman Academic Exchange Bureau, DAADDeutscher Akademischer Austausch Dienst (DAAD)
dc.relationMinistry of Science and Technological Development of the Republic of Serbia
dc.rightsopenAccess
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/
dc.sourceJournal of the Serbian Chemical Society
dc.subjectplate heat exchangeren
dc.subjectevaporationen
dc.subjectR-134aen
dc.subjectheat transfer coefficienten
dc.titleLocal heat transfer coefficients during the evaporation of 1,1,1,2-tetrafluoroethane (R-134a) in a plate heat exchangeren
dc.titleLokalni koeficijenti prelaza toplote pri isparavanju 1,1,1,2-tetrafluoretana (R-134a) u pločastom razmenjivaču toplotesr
dc.typearticle
dc.rights.licenseBY-NC-ND
dc.citation.epage440
dc.citation.issue4
dc.citation.other74(4): 427-440
dc.citation.rankM23
dc.citation.spage427
dc.citation.volume74
dc.identifier.fulltexthttp://TechnoRep.tmf.bg.ac.rs/bitstream/id/13266/bitstream_13266.pdf
dc.identifier.rcubhttps://hdl.handle.net/21.15107/rcub_technorep_1382
dc.identifier.scopus2-s2.0-68949127447
dc.identifier.wos000266210200008
dc.type.versionpublishedVersion


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