Evaluation of Natural Circulation in Spent Fuel Pool of Bushehr NPP, in Case of Loss of SFP Cooling System

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Asadi Moghadam, Ehsan | 2020

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 52614 (46)
University: Sharif University of Technology
Department: Energy Engineering
Advisor(s): Ghofrani, Mohammad Bagher
Abstract:
The Fukushima accident is one of the reasons why the spent fuel pool (SFP) is an important safety element. The large amount of spent fuel inside the spent fuel pool has made it a source of hydrogen and radioactive material in the accident of any disturbance to pool cooling. Although the loss of spent fuel pool cooling system accident has a slow transient, it can lead to disasters if you ignore it. In this project, spent fuel pool of Bushehr Power Plant unit ‘I’ was simulated by Ansys Fluent and the natural circulation of fluids in the absence of cooling system was investigated. The distribution of water temperature in the pool was investigated for the worst possible spent fuel pool loading conditions as well as for the current spent fuel pool load for the Bushehr nuclear power plant unit ‘I’ loading for the March 2019. It also estimates the time required for the water in the pool to start boiling to be around 8200 seconds in design conditions
Keywords:
Fluent Software ; Natural Circulation Boiling ; Cooling System Accident Loss ; Damaged Spent Fuel ; Spent Fuel Pool

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