Národní úložiště šedé literatury Nalezeno 1 záznamů.  Hledání trvalo 0.01 vteřin. 
Accident Tolerant Fuel simulation loaded in advanced nuclear reactor during severe accident conditions
Hamřík, Lukáš ; Foral, Štěpán (oponent) ; Mičian, Peter (vedoucí práce)
This diploma thesis introduces accident tolerant fuels that are considered to be a next step in increase of safety margins of nuclear power plants. In the beginning, the weaknesses of the currently operated fuel system are exposed. Accident-tolerant fuel options and their categories are described in their stages of development and faced issues before their deployment. The APR1400 plant with its accident mitigation systems is mentioned, the plant model is used to assess the impact of advanced cladding materials in a plant undergoing severe accident. The MELCOR code, capable of simulations of severe accident phenomena, is briefly introduced with its capabilities. The implementation of advanced cladding materials to MELCOR is described, altogether with simulated scenarios. In the end, the results obtained from the simulations are discussed.

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