Effects of molten material temperatures and coolant temperatures on vapor explosion

Effects of molten material temperatures and coolant temperatures on vapor explosion 1 corresp first-author E-mail: tsli@sjtu.edu.cn E-mail: tsli@sjtu.edu.cn tsli@sjtu.edu.cn 1 1 1 School of Mechanical Power Engineering, Shanghai Jiaotong University, Shanghai 200240, China School of Mechanical Power Engineering, Shanghai Jiaotong University, Shanghai 200240, China An observable experiment facility for low-temperature molten materials to be dropped into water was set up in this study to investigate the mechanism of the vapor explosion. The effect of the fuel and coolant interaction (FCI) on the vapor explosion during the severe accidents of a fission nuclear reactor has been studied. The experiment results showed that the molten material temperature has an important effect on the vapor explosion behavior and pressure. The increase of the coolant temperature would decrease the pressure of the vapor explosion. Vapor explosion FCI Visual experiment equipment References Yang Yanhua . Multi-phase simulations for phenomena in vapor explosions, Doctor dissertation . University of Tokyo , Tokyo, Japan : 1996 . Multi-phase simulations for phenomena in vapor explosions, Doctor dissertation Theofanous T G ., Yuen W W . . The prediction of dynamic loads from ex-vessel steam explosions . Proceedings of the International Conference on New Trends in Nuclear System Thermohydraulics , Pisa, Italy , 1994 : 257 - 270 . The prediction of dynamic loads from ex-vessel steam explosions Kim B , Corradini M L . Nuclear Science and Engineering , 1998 , 98 : 16 - 28 . Nuclear Science and Engineering Yutaka Abea . Nuclear Engineering and Design , 2004 , 230 : 277 - 291 . Nuclear Engineering and Design 10.1016/S1001-8042(07)60068-2 TL364 + .4 Supported by the National Natural Science Foundation of China (No.50376036) 2007-04-25 2007-10-20 2021-01-19 2007 Nuclear Science and Techniques 05 18