It is believed that the numerical simulation of thermal-hydraulic phenomena of multiphase, multicomponent flows in a reactor core is essential to investigate core disruptive accidents (CDAs) of liquid-metal fast reactors. A new multicomponent vaporization/condensation (V/C) model was developed to provide a generalized model for a fast reactor safety analysis code SIMMER-III, which analyzes relatively short-time-scale phenomena relevant to accident sequences of CDAs. The model characterizes the V/C process associated with phase transition through heat-transfer and mass-diffusion limited models to follow the time evolution of the reactor core under CDA conditions. The heat-transfer limited model describes the nonequilibrium phase-transition processes occurring at interfaces, while the mass-diffusion limited model is employed to represent effects of noncondensable gases and multicomponent mixture on V/C processes. Verification of the model and method employed in the multicomponent V/C model of SIMMER-III was performed successfully by analyzing two series of condensation experiments.
|出版物ステータス||出版済み - 10 19 2002|
|イベント||10th International Conference on Nuclear Engineering (ICONE 10) - Arlington, VA, 米国|
継続期間: 4 14 2002 → 4 18 2002
|その他||10th International Conference on Nuclear Engineering (ICONE 10)|
|期間||4/14/02 → 4/18/02|
All Science Journal Classification (ASJC) codes
- Nuclear Energy and Engineering