Title of article
Leak-tightnesscharacteristicsconcerningthecontainmentstructuresoftheHTTROriginalResearchArticle
Author/Authors
NariakiSakaba، نويسنده , , KazuhikoIigaki، نويسنده , , MasaakiKondo، نويسنده , , KoichiEmori، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2004
Pages
11
From page
135
To page
145
Abstract
ThecontainmentstructuresoftheHTTRconsistofthereactorcontainmentvessel,theservicearea,andtheemergencyairpurificationsystem,whichminimisethereleaseoffissionproductsinpostulatedaccidents,whichleadtofissionproductreleasefromthereactorfacilities.Thereactorcontainmentvesselisdesignedtowithstandthetemperatureandpressuretransientsandtobeleak-tightinthecaseofaruptureoftheprimaryconcentrichot-gasduct,etc.Thepressureinsidetheserviceareaismaintainedatanegativepressurebytheemergencyairpurificationsystem.Theemergencyairpurificationsystemwillalsoremoveairborneradioactivityandwillmaintainacorrectpressureintheservicearea.
Theleak-tightnesscharacteristicsofthecontainmentstructuresaredescribedinthispaper.Themeasuredleakageratesofthereactorcontainmentvesselwereenoughlessthanthespecifiedleakagelimitof0.1%/dconfirmedduringthecommissioningtestsandannualinspections.Theserviceareawaskeptinawaythatthedesignpressurebecomeswellbelowitsallowablelimitationbytheemergencyairpurificationsystem,whichfiltersefficiencyofparticleremovalandiodineremovalwelloverthelimitedvalues.
Theobtaineddatademonstratethatthereactorcontainmentstructureswerefabricatedtominimisethereleaseoffissionproductsinthepostulatedaccidentswithfissionproductreleasefromthereactorfacilities.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2004
Journal title
Nuclear Engineering and Design Eslah
Record number
894811
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