Title of article :
ProbabilisticmodellingofsteamgeneratortubepittingcorrosionOriginalResearchArticle
Author/Authors :
SureshV.Datla، نويسنده , , MikkoI.Jyrkama، نويسنده , , MaheshD.Pandey، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2008
Abstract :
Pittingcorrosionisaseriousformofdegradationinsteamgenerator(SG)tubingofsomenuclearstations.Thenatureandextentofthepittingprocessisassessedthroughinspectionprograms,typicallyusingvariouseddycurrent(EC)techniques,whiletheimpactofpittingisminimizedthroughdepositremovalmaintenanceactivitiessuchaswaterlancingandchemicalcleaningofSGs.ThispaperpresentsaprobabilisticmodelofSGtubepittingcorrosionthatincorporatestrendsobservedfromalargeECinspectiondatabasefromanucleargeneratingstation.ThepittingoccurrenceprocessismodelledasastochasticPoissonprocessandthepitsizeistreatedasarandomvariable.ThemodelisstatisticallycalibratedwiththeavailableECinspectiondata.Themodelisappliedtoestimatetheprobabilityoftubeleakage,forcedoutagerateandthedistributionofthenumberoftubespluggedperSGinagivenoperatinginterval.Theproposedmodelisusefulinoptimizingstrategiesforthelife-cyclemanagementofSGs.
Journal title :
Nuclear Engineering and Design Eslah
Journal title :
Nuclear Engineering and Design Eslah
