Severe Accident Analysis in Nuclear Power Plants

1Departamento de Ingenieŕia de Procesos e Hidraulica, Universidad Autonoma Metropolitana-Iztapalapa, Avenida San Rafael Atlixco 186 Col. Vicentina, 09340 Mexico, DF, Mexico 2Department of Physics and Nuclear Engineering, Universitat Politecnica de Catalunya (BarcelonaTECH), Av. Diagonal 647, 08028 Barcelona, Spain 3Comision Nacional de Seguridad Nuclear y Salvaguardias, Doctor Barragan 779, Col. Narvarte, Mexico City, DF, Mexico 4Department of Nuclear Engineering, Graduate School of Engineering, Kyoto University, Yoshida, Sakyo, Kyoto 606-8501, Japan