Title of article
ComputationandmeasurementofcalandriatubesaginpressurizedheavywaterreactorOriginalResearchArticle
Author/Authors
TaeRyongKim، نويسنده , , SeokManSohn، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2004
Pages
10
From page
339
To page
348
Abstract
Calandriatubesandliquidinjectionshutdownsystemnozzlesinapressurizedheavywaterreactoraretosagduetoirradiationcreepandgrowthduringplantoperation.Whenthesagofcalandriatubebecomesbigger,thecalandriatubepossiblycomesincontactwithliquidinjectionshutdownsystemtubecrossingbeneaththecalandriatube.Thecontactsubsequentlymaycausethedamageonthecalandriatuberesultinginunpredictedoutageoftheplant.Itisthereforenecessarytocheckthegapbetweenthetwotubesinordertoperiodicallyconfirmnocontactbyusingapropermeasureduringtheplantlife.AnultrasonicgapmeasurementprobeassemblywhichcanbeinsertedintotwoviewingportsofthecalandriawasdevelopedinKoreaandutilizedtomeasurethesagbetweenbothtubesinthereactor.Itwasfoundthatthecenterlinesofcalandriatubesandliquidinjectionshutdownsystemtubescanbepreciselydetectedbyultrasonicwave.Thegapsbetweentwotubeswereeasilyobtainedfromtherelativedistanceofthemeasuredcenterlineelevationsofthetubes.Basedontheirradiationcreepequationandthemeasurementdata,acomputerprogramtocalculatethesagswasalsodeveloped.Withthecomputerprogram,thesagattheendofplantlifewaspredicted.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2004
Journal title
Nuclear Engineering and Design Eslah
Record number
894744
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