• Title of article

    Flashing-induceddensitywaveoscillationsinanaturalcirculationBWR—mechanismofinstabilityandstabilitymapOriginalResearchArticle

  • Author/Authors

    M.Furuya، نويسنده , , F.Inada، نويسنده , , T.H.J.J.vanderHagen، نويسنده ,

  • Issue Information
    روزنامه با شماره پیاپی سال 2005
  • Pages
    13
  • From page
    1557
  • To page
    1569
  • Abstract
    Experimentswereconductedtoinvestigatetwo-phaseflowinstabilitiesduetoflashinginaboilingnaturalcirculationloopwithachimneyatlowpressure.TheSIRIUS-Nfacilitywasdesignedtohavenon-dimensionalvaluesnearlyequaltothoseoftypicalnaturalcirculationboilingwaterreactor(BWR). Theobservedinstabilityissuggestedtobeflashing-induceddensitywaveoscillations,sincetheoscillationperiodcorrelatedwellwiththepassingtimeofsingle-phaseliquidinthechimneysectionregardlessofsystempressure,heatflux,andinletsubcooling. Stabilitymapswereobtainedinreferencetotheinletsubcoolingandtheheatfluxatthesystempressuresof0.1,0.2,0.35,and0.5 MPa.Theflowbecamestablebelowacertainheatfluxregardlessofthechannelinletsubcooling.Thestableregionenlargedwithincreasingsystempressure.Thus,thestabilitymarginbecomeslargerinastartupprocessofareactorbypressurizingthereactorsufficientlybeforeheatingaccordingtothestabilitymap.
  • Journal title
    Nuclear Engineering and Design Eslah
  • Serial Year
    2005
  • Journal title
    Nuclear Engineering and Design Eslah
  • Record number

    894942