Essays about: "corium pool"

Found 2 essays containing the words corium pool.

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. Influence of In-vessel Pressure and Corium Melt Properties on Global Vessel Wall Failure of Nordic-type BWRs

   University essay from KTH/Kärnkraftssäkerhet

   Author : Andrei Goronovski; [2013]
   Keywords : Severe accident; Vessel failure; CRGT cooling; Thermo-Mechanical creep analysis;

   Abstract : The goal of the present study is to investigate the effect of different scenarios of core degradation in a Nordic-type BWR (boiling water reactor) on the reactor pressure vessel failure mode and timing. Specifically we consider the effects of (i) in-vessel pressure, (ii) melt properties. READ MORE