Title of article
ExperimentalinvestigationofcoriumquenchingatelevatedpressureOriginalResearchArticle
Author/Authors
M. Lomperski، نويسنده , , M.T.Farmer، نويسنده , , S.Basu، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2006
Pages
10
From page
2271
To page
2280
Abstract
Thispaperdescribestheresultsofexperimentsdesignedtoquantifythecoolingrateofcoriumbyanoverlyingwaterpool.Theexperimentsareintendedtoprovidefundamentalinformationontheabilityofwatertoingressintocracksandfissuresthatforminthedebrisduringquench,therebyaugmentingtheotherwiseconduction-limitedheattransferprocess.Thisinformationisbeingusedtoassesstheeffectivenessofawaterpoolinthermallystabilizingamolten-core/concreteinteractionandcoolingofex-vesselcoredebris.Theexperimentsinvolvedcoriuminventoriesof75kgwithameltdepthof15cmanddiameterof30cm.ThecoriumwascomposedofUO2/ZrO2/concretetosimulatemixturesofmoltenreactorcorecomponentsandeithersiliceousorlimestone/commonsand(LCS)concrete.Initialmelttemperatureswereoftheorderof2100°C.Theheattransferratefromthecoriumwasdeterminedthroughmeasurementsofthevaporproductionratefromthewaterpool.Themeltwasquenchedatatmosphericpressureforthefirsttwotestsandat4barforthetwosubsequenttests.Preliminarydataanalysisindicatesthattheoverallheattransferrateexceededtheconduction-limitedrateforthethreemeltscontaining8wt.%concrete,butnotforthefourth,whichhad23wt.%concrete.Also,thequenchrateofthe8wt.%concretemeltsdidnotvaryappreciablywithpressure.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2006
Journal title
Nuclear Engineering and Design Eslah
Record number
941338
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