Title of article
Experimentalanalysisoftheaqueouschemicalenvironmentfollowingaloss-of-coolantaccidentOriginalResearchArticle
Author/Authors
DongChen، نويسنده , , KerryJ.Howe، نويسنده , , JackDallman، نويسنده , , BruceC.Letellier، نويسنده , , MarcKlasky، نويسنده , , JanetLeavitt، نويسنده , , BhagwatJain، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2007
Pages
11
From page
2126
To page
2136
Abstract
Fivedifferent30-daytestswereconductedtosimulatethechemicalenvironmentinapressurizedwaterreactorcontainmentwaterpoolafteraloss-of-coolantaccident(LOCA).Allchemicalenvironmentswithinthetestapparatusincludedboricacid,lithiumhydroxide,andhydrochloricacid.Inaddition,trisodiumphosphate,sodiumhydroxide,andsodiumtetraboratewereusedtocontrolpHinseparatetests.Materialstestedwithinthisenvironmentincludedrepresentativeamountsofsubmergedandunsubmergedmetalcoupons,concrete,insulationdebrissamples,concreteparticulate,andlatentdebris.Visiblechangeswereseenonthebothsubmergedandunsubmergedmetalcouponsineachtestbecauseofcorrosion.Thetestswithcalciumsilicate(cal-sil)insulationhadconsiderablymoresedimentthantheothertestswithfiberglassinsulation.Particulatedepositswerefoundonlyontheexteriorsurfacesofthefiberglassbundles.Themostparticulatedepositswerefoundonthefiberglassexteriorfromthetestthatinvolvedcal-silinsulationandtrisodiumphosphate(TSP).Inaddition,snow-likewhiteprecipitateswerefoundontopofthesedimentinthattest,thatwererichincalciumandphosphorus.Precipitateswerealsopresentinthesolutionsoftwotestswhenthesolutionwascooledtoroomtemperature.Theseprecipitateshavehighcontentsofaluminumandboronwithsmallamountsofsodiumandcalcium.Thepresenceofinsulationdebris,precipitates,andsedimentsissignificantbecauseoftheimpacttheymayhaveontheECCSrecirculationprocess.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2007
Journal title
Nuclear Engineering and Design Eslah
Record number
941381
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