1. The Analysis of Effectiveness of BWR/6 URG Strategies
- Author
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Ting-Yi Wang, Chunkuan Shih, Jong-Rong Wang, Yu Ting Hsu, Show Chyuan Chiang, Tzu Yao Yu, and Shao Wen Chen
- Subjects
Engineering ,Waste management ,business.industry ,020209 energy ,Blackout ,Water source ,Injection rate ,02 engineering and technology ,General Medicine ,Nuclear power ,Coolant ,law.invention ,Containment ,Cabin pressurization ,law ,Nuclear power plant ,0202 electrical engineering, electronic engineering, information engineering ,medicine ,medicine.symptom ,business - Abstract
After the Fukushima Daichii accidents, Taiwan Power Company developed a strategy to cope with such extended SBO (Station Blackout) cases at nuclear power plants, which called URG. The MAAP and PCTRAN were used to perform the study for Kuosheng BWR/6 nuclear power plant (NPP) ultimate response guideline (URG). The main actions of URG are the depressurization and low pressure water injection of the reactor and the venting of the containment. This study focuses to confirm the URG efficiency. The analysis results depict that following the URG, the fuel can be covered by the coolant, no exposure. It can also prevent the radiation release and the large evacuation. It indicated that Kuosheng NPP was at the safe situation. It shows that the two-step depressurizations can extend the time of the preparation of alternate water source. The minimum injection rate to prevent the fuel to expose is 192 gpm in MAAP.
- Published
- 2017