Essays about: "kvarhållning"

Found 2 essays containing the word kvarhållning.

  1. 1. A Numerical Study of Melt Pool Heat Transfer in the IVR of a PWR

    University essay from KTH/Fysik

    Author : Yuer Zhao; [2021]
    Keywords : In-vessel melt retention; corium pool; Zr oxidation ratio; melt pool convection; CFD; SST k-ω turbulence model; Smältretention i kärlet; koriumpöl; Zr-oxidationsförhållande; konvektion i en smältpöl; CFD; SST k-ω turbulensmodell;

    Abstract : This thesis aims to provide the thermal condition of melt pool convection by CFD simulation, which is important to the assessment of the invessel melt retention (IVR) strategy widely adopted in Generation III pressurized water reactors (PWRs). As a severe accident mitigation measure, the IVR strategy is realized through external cooling of the lower head of a reactor pressure vessel (RPV). READ MORE

  3. 2. Uppfångning och kvarhållning av 134Cs och 85Sr i olika växtutvecklingsstadier

    University essay from SLU/Dept. of Soil and Environment

    Author : Anna-Lisa Mårtensson; [2012]
    Keywords : cesium; kvarhållning; LAI; motåtgärder; strontium; radioaktivitet; raps; uppfångning; vall; vete; växtutvecklingsstadier;

    Abstract : Emissions of radionuclides to the atmosphere can lead to wet deposition on plants in the event of rainfall. An increased level of radioactivity in the plants may occur due to interception and retention of the radionuclides. If the content of the plants is above the threshold limit value, entire yields may have to be destroyed. READ MORE