Title of article
AnumericalstudyofradiationheattransferinsodiumpoolcombustionandresponsesurfacemodelingofluminousflameemissivityOriginalResearchArticle
Author/Authors
AkiraYamaguchi، نويسنده , , YujiTajima، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2006
Pages
13
From page
1179
To page
1191
Abstract
Aresponsesurfacemodeloftheluminousflameemissivityofsodiumpoolfirehasbeenproposedforuseinsafetyanalysiscomputercodesofaliquidmetalfastreactor.Theliquidsodiumburnsinairresultinginnotonlyheatgenerationbutalsoreleaseofsodiumoxideaerosolsofsub-microndiameters.Aerosolslevitatinginairareradiativeandtheyinfluencetheallocationofcombustionheatfromtheflametoatmosphericgasorsodiumpool.Theemissivityoftheflameneedstobequantified,asitisoneofuser-specifiedparametersofthecomputercodesforthesodiumfireanalysis.Theresponsesurfacemodeloftheflameemissivityisdevelopedbasedonnumericalexperimentsonthephysicsofmassandheattransferandbehavioroftheaerosol.Thermal-hydraulicequationshavebeensolvedcoupledwithaerosoldynamicsandchemicalreaction.Threeinfluentialvariablesontheemissivityareidentifiedaspooltemperature,gastemperatureandoxygenmolarfractionintheair.Ithasbeenfoundthattheemissivityiscalculatedreasonablyasafunctionofthethreevariables.Theproposedresponsesurfacemodelcanbeeasilyemployedinthesodiumfireanalysiscodesbecauseitisasimplequadraticexpression.Forthesafetyevaluationofthesodiumfire,combineduseisrecommendedoftheproposedmodelandthelumped-masszonemodelcode.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2006
Journal title
Nuclear Engineering and Design Eslah
Record number
896070
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