Title of article
Inversemethodfortemperatureandstressmonitoringincomplex-shapedbodiesOriginalResearchArticle
Author/Authors
PiotrDuda، نويسنده , , JanTaler، نويسنده , , EberhardRoos، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2004
Pages
17
From page
331
To page
347
Abstract
Thepurposeofthisworkistoformulateaspacemarchingmethod,whichcanbeusedtosolveinversemultidimensionalheatconductionproblems.Themethodisdesignedtoreconstructthetransienttemperaturedistributioninawholeconstructionelementbasedonmeasuredtemperaturestakenatselectedpointsontheoutersurfaceoftheconstructionelement.Next,theFiniteElementMethodisusedtocalculatethermalstressesandstressescausedbyotherloadssuchas,forinstance,internalpressure.Thedevelopedmethodforsolvingtemperatureandtotalstressdistributionistestedusingthemeasuredtemperaturesgeneratedfromadirectsolution.Transienttemperatureandtotalstressdistributionsobtainedfromthemethodpresentedbelowarecomparedwiththevaluesobtainedfromthedirectsolution.Finally,thepresentedmethodisexperimentallyverifiedduringthecoolingofathick-walledcylindricalelement.Themodelofapressurevesselwaspreheatedat300°Candthencooledbycoldwaterinjection.Thecomparisonofresultsobtainedfromtheinversemethodwithexperimentaldatashowsthehighaccuracyofthedevelopedmethod.Thepresentedmethodallowstooptimizethepowerblock’sstart-upandshut-downoperations,contributestothereductionofheatlossduringtheseoperationsandtotheextensionofpowerblock’slife.Thefatigueandcreepusagefactorcanbecomputedinanon-linemode.Thepresentedmethodhereincanbeappliedtomonitoringsystemsthatworkinconventionalaswellasinnuclearpowerplants.
Journal title
Nuclear Engineering and Design Eslah
Serial Year
2004
Journal title
Nuclear Engineering and Design Eslah
Record number
894663
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