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FLOW BOILING HEAT TRANSFER IN A RECTANGULAR COPPER MICROCHANNEL

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dc.contributor.authorÖZDEMİR, MEHMED RAFET
dc.contributor.authorsOzdemir, Mehmed R.; Mahmoud, Mohamed M.; Karayiannis, Tassos G.
dc.date.accessioned2022-03-14T08:15:02Z
dc.date.available2022-03-14T08:15:02Z
dc.date.issued2016
dc.description.abstractFlow boiling characteristics of de-ionized water were tested experimentally in a rectangular copper single microchannel of 1 mm width, 0.39 mm height and 62 mm length. De-ionized water was supplied to the microchannel at constant inlet temperature (89 degrees C) and constant inlet pressure (115 kPa). The mass flux ranged from 200 to 800 kg/m(2)s and the heat flux from 56 to 865 kW/m(2). The heat transfer rate data are presented as plots of local heat transfer coefficient versus vapour quality and distance along the channel. Flow visualization was also conducted using a high-speed, high-resolution camera. The results indicate that unstable flow boiling occurred starting at boiling incipience for all mass flux values. The local heat transfer coefficient depends on heat flux only at very low heat and mass fluxes. At high mass flux, there is no heat flux effect with little dependence on vapour quality after the entry region. The mass flux effect was more complex.
dc.identifier.doi10.18186/jte.01281
dc.identifier.issn2148-7847
dc.identifier.urihttps://hdl.handle.net/11424/241294
dc.identifier.wosWOS:000407794900003
dc.language.isoeng
dc.publisherYILDIZ TECHNICAL UNIV
dc.relation.ispartofJOURNAL OF THERMAL ENGINEERING
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectflow boiling
dc.subjectmicrochannel
dc.subjectheat transfer coefficient
dc.subjectflow patterns
dc.subjectinstability
dc.subject2-PHASE FLOW
dc.subjectPRESSURE-DROP
dc.subjectWATER
dc.subjectFLUX
dc.subjectVISUALIZATIONS
dc.subjectINSTABILITY
dc.subjectPATTERNS
dc.titleFLOW BOILING HEAT TRANSFER IN A RECTANGULAR COPPER MICROCHANNEL
dc.typearticle
dspace.entity.typePublication
local.avesis.id75a44224-a54d-4469-81fd-7c3ffc6b0ab0
local.import.packageSS16
local.indexed.atWOS
local.indexed.atSCOPUS
local.journal.numberofpages13
oaire.citation.endPage773
oaire.citation.issue3
oaire.citation.startPage761
oaire.citation.titleJOURNAL OF THERMAL ENGINEERING
oaire.citation.volume2
relation.isAuthorOfPublication0ba9888a-c461-4d55-83da-4114c06d98a8
relation.isAuthorOfPublication.latestForDiscovery0ba9888a-c461-4d55-83da-4114c06d98a8

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