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A comparison of the void fraction correlations of R134a during condensation in vertical downward laminar flow in a smooth and microfin tube

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dc.contributor.authorDalkilic, Ahmet Selim
dc.contributor.authorLaohalertdecha, Suriyan
dc.contributor.institutionauthorDALKILIÇ, Ahmet Selim
dc.date.accessioned2026-06-27T13:06:27Z
dc.date.issued2008
dc.description.abstractVoid fractions arc determined in vertical downward annular two-phase flow of R134a inside a 7 turn i.d. smooth and microfin tube. The experiments are done at average qualities ranging between 0.67-0.99. The mass fluxes are around 29 kg/m(2)S. The pressures are between 0.77-0.9 MPa. The experimental setup is explained elaborately. Comparisons between the void fraction determined from 35 void fraction correlations are done. According to the use of various horizontal and vertical annular flow void fraction models together with the present experimental condensation heat transfer data, similar void fraction results were obtained mostly for the microfin and smooth tube. Effect of void fraction alteration on the momentum pressure drop is also presented.en
dc.identifier.endpage1040
dc.identifier.isbn978-0-7918-4292-8
dc.identifier.startpage1029
dc.identifier.urihttps://hdl.handle.net/20.500.14981/49816
dc.identifier.wos000255392000142
dc.language.isoeng
dc.publisherAMER SOC MECHANICAL ENGINEERS
dc.relation.conference1st ASME Micro/Nanoscale Heat Transfer International Conference
dc.relation.ispartofPROCEEDINGS OF THE MICRO/NANOSCALE HEAT TRANSFER INTERNATIONAL CONFERENCE 2008, PTS A AND B
dc.subjectPRESSURE-DROP
dc.subject2-PHASE FLOW
dc.subjectEngineering
dc.subjectScience & Technology - Other Topics
dc.subjectPhysics
dc.titleA comparison of the void fraction correlations of R134a during condensation in vertical downward laminar flow in a smooth and microfin tube
dc.typeProceedings Paper
dspace.entity.typePublication
local.import.sourceWOS

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