Title of article
Single-phaseconvectiveheattransferinrodbundlesOriginalResearchArticle
Author/Authors
MaryV.Holloway، نويسنده , , DonaldE.Beasley، نويسنده , , MichaelE.Conner، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2008
Pages
11
From page
848
To page
858
Abstract
Theconvectiveheattransferforturbulentflowthroughrodbundlesrepresentativeofnuclearfuelrodsusedinpressurizedwaterreactorsisexamined.Therodbundlesconsistofasquarearrayofparallelrodsthatareheldonaconstantpitchbysupportgridsspacedaxiallyalongtherodbundle.Split-vanepairsupportgrids,whichcreateswirlingflowintherodbundle,aswellasdiscandstandardsupportgridsareinvestigated.Single-phaseconvectiveheattransfercoefficientsaremeasuredforflowdownstreamofsupportgridsinarodbundle.Therodsareheatedusingdirectresistanceheating,andabulkaxialflowofairisusedtocooltherodsintherodbundle.Airisusedastheworkingfluidinsteadofwatertoreducethepowerrequiredtoheattherodbundle.Resultsindicateheattransferenhancementforupto10hydraulicdiametersdownstreamofthesupportgrids.Ageneralcorrelationisdevelopedtopredicttheheattransferdevelopmentdownstreamofsupportgrids.Inaddition,circumferentialvariationsinheattransfercoefficientsresultinhotstreaksthatdevelopontherodsdownstreamofsplit-vanepairsupportgrids.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2008
Journal title
Nuclear Engineering and Design Eslah
Record number
895050
Link To Document