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Showing result 1 - 5 of 7 essays matching the above criteria.

  1. 1. Dimensioning study of EPR2 fuel pool cooling system

    University essay from KTH/Fysik

    Author : Thomas Rubler; [2023]
    Keywords : EPR2; PTR; spent fuel pool; heat exchange; EPR2; PTR; bassäng för utbränt kärnbränsle; värmeväxling.;

    Abstract : The PTR system allows the EPR2 fuel pool to be cooled. The evacuation of the residual power fromthe pool is ensured by several heat exchangers and pumps, which have to be dimensioned in order to meetdifferent requirements.In order to dimension them, the worst-case scenario of the components must first be determined. READ MORE

  3. 2. Improving the understanding of heat transfer when boiling solid foods

    University essay from Lunds universitet/Livsmedelsteknik och nutrition (master)

    Author : Dat Nguyen Trong; [2022]
    Keywords : fluid-to-particle heat transfer coefficient; heat transfer; pool boiling; boiling; simmering; starch gelatinization; unsteady-state heat transfer analysis; food engineering; Agriculture and Food Sciences;

    Abstract : Determination of the fluid-to-particle heat transfer coefficient hfp is a fundamental problem in food engineering. Solutions to this problem help food technologists and cooks prepare foods with desired characteristics more efficiently in time and energy use. This study aims to determine the hfp-value in simmering and boiling solid foods. READ MORE

  4. 3. 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

  5. 4. Bubble Dynamics on Artificial Nucleation Sites in Boiling Heat Transfer

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Yuqing Zhang; [2021]
    Keywords : ;

    Abstract : Pool boiling heat transfer is a complicated scientific problem due to the complex phase change process. In recent years, with the development of nuclear technology, microelectronics and space exploration, more attention has been paid to boiling which present great potentials for the thermal management in these applications because nucleate boiling has much better heat transfer performance than single-phase fluid, while bubbles, including their departure frequency and diameter and the interaction between bubbles plays an important role in determination of the heat transfer performance. READ MORE

  6. 5. LBM simulation of bubble behavior and CHF prediction of pool boiling in narrow channels under different body forces

    University essay from KTH/Fysik

    Author : Jing Yuan; [2018]
    Keywords : ;

    Abstract : .... READ MORE