• 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