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
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
Journal title :
Nuclear Engineering and Design Eslah
