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A use of prototypic material for the investigation of severe accident progression |
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| Affiliation: | 1. Shaanxi Key Lab. of Advanced Nuclear Energy and Technology, Xi''an Jiaotong University, Xi''an, 710049, China;2. Department of Nuclear Science and Technology, State Key Laboratory of Multiphase Flow in Power Engineering, Xi’an, 710049, China;1. Reactor Research and Development School, Nuclear Science and Technology Research Institute (NSTRI), Tehran, 143995-1113, Iran;2. Faculty of Electrical and Computer Engineering, Kerman Graduate University of Technology, Kerman, Iran;1. Engineering Department, Shahid Beheshti University, G.C., P.O. Box 1983963113, Tehran, Iran;2. Faculty of Electrical and Computer Engineering, Graduate University of Advanced Technology, Kerman, Iran;1. Department of Engineering, Lancaster University, Lancaster, LA1 4YW, United Kingdom;2. Hybrid Instruments Ltd., Gordon Manley Building, Lancaster Environment Centre, Lancaster University, Lancaster, LA1 4YQ, United Kingdom;3. Pajarito Scientific Corporation, 2976 Rodeo Park Drive East, Sante Fe, NM, 87505, United States |
| Abstract: | An experimental research platform using corium melts is established for the understanding of safety related important phenomena during a severe accident progression. The research platform includes TROI facility for corium water interaction experiments and VESTA facility for corium-structural material interaction experiments. A cold crucible technology is adapted and improved for a generation of 5–100 kg of corium melts at various compositions. TROI facility is used for experiments to investigate premixing and explosion behaviors during a fuel coolant interaction process. More than 70 experiments using corium at various compositions were performed to simulate steam explosion phenomena in a reactor situation. The results indicate that the conversion efficiency of steam explosion for corium is less than 1%. VESTA facility is used to investigate molten corium-structural material interaction phenomena. VESTA facility consists of two cold crucibles. One crucible is used for the melting of charged material and pouring of corium melt. The other crucible is used for the corium-structural material interaction while providing an induction heating to simulate the decay heat. The results of an experiment on the interaction between corium melt and a specimen made of Inconel performed in the VESTA facility is reported. |
| Keywords: | Corium Cold crucible Steam explosion Corium structural material interaction Ablation |
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