Title of article
FloodinglimitedCHFinavertical3×3rodbundlewithnon-uniformaxialheatfluxOriginalResearchArticle
Author/Authors
SeokCho، نويسنده , , Se-YoungChun، نويسنده , , Sang-KiMoon، نويسنده , , Won-PilBaek، نويسنده , , YooKim، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2005
Pages
14
From page
77
To page
90
Abstract
KAERIhasperformedanexperimentalstudyonthecriticalheatflux(CHF)underzeroflowconditionswithanon-uniformlyheated3×3rodbundle.Experimentalconditionsareintherangeofasystempressurefrom0.50to14.96MPaandinletwatersubcoolingenthalpiesfrom68to352kJ/kg.Thetestsectionusedinthepresentexperimentsconsistedofaverticalflowchannel,upperandlowerplenums,andanon-uniformlyheated3×3rodbundle.TheexperimentalresultsshowthattheCHFsinlow-pressureconditionsaresomewhatscatteredwithinanarrowrange.Asthesystempressureincreases,however,theCHFsshowagoodparametrictrend.TheCHFsoccurintheupperregionoftheheatedsection,butthelocationsofthedetectedCHFsmovegraduallyinadownwarddirectionwiththeincreaseofthesystempressure.EventhoughtheeffectsoftheinletwatersubcoolingenthalpiesandsystempressureofthefloodingCHFarerelativelysmallerthanthoseoftheflowboilingCHF,theCHFincreasesbyincreasingtheinletwatersubcoolingenthalpies.SeveralexistingcorrelationsforthecountercurrentfloodingCHFbasedonWallisʹsfloodingcorrelationandKutateladzeʹscriterionfortheonsetoffloodingarecomparedwiththeCHFdataobtainedinthepresentexperimentstoexaminetheapplicabilityofthecorrelations.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2005
Journal title
Nuclear Engineering and Design Eslah
Record number
894839
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