Nov, 2013
Multidimensional thermal-hydraulic analysis on natural circulation behavior in ex-vessel fuel storage tank of MONJU
Proceedings of ASME 2013 International Mechanical Engineering Congress and Exposition (IMECE 2013) (DVD-ROM)
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- First page
- 9
- Last page
- Language
- English
- Publishing type
- DOI
- 10.1115/IMECE2013-64037
The severe accident evaluation on the EVST of MONJU has ever been performed by one-dimensional flow network code "Super-COPD". However, it is difficult to predict thermal-hydraulics in the EVST accurately because the fluid in the EVST is driven by natural circulation. Thus we have performed multidimensional thermal-hydraulic analysis in order to clarify the thermal-hydraulic behavior and evaluate the appropriateness of the flow network model. As a result, it was noted that the multidimensionality on temperature and velocity in the EVST was small enough and the flow network model would be almost appropriate. It should be noted that flow resistance of the supporting plates or the heat transfer center of the cooling coils should be set conservatively for the safety analysis.
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- ID information
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- DOI : 10.1115/IMECE2013-64037