Loading...
Search for:
severe-accident
0.005 seconds
Re-evaluation of level 2 PSA results of a VVER-1000 NPP with consideration of innovative severe accident management strategies
, Article Annals of Nuclear Energy ; Volume 151 , 2021 ; 03064549 (ISSN) ; Jamshidi, M ; Sharif University of Technology
Elsevier Ltd
2021
Abstract
The ultimate purpose of the nuclear power plant safety is to protect the public and the environment from unacceptable radiation exposure in all operational states. This paper presents a novel severe accident management framework to cope with the risk of radioactive material release to the environment. The objective is to reduce the contribution of severe accidents to the large and early release frequencies of radioactive materials for a VVER-1000 nuclear reactor. The proposed approach includes the emergency actions of NPP personnel aiming to recover the lost alternating power and restore the core cooling process by all means available at the site. In addition, mobile equipment including a...
Accident management support tools in nuclear power plants: A post-Fukushima review
, Article Progress in Nuclear Energy ; Volume 92 , 2016 , Pages 1-14 ; 01491970 (ISSN) ; Ghofrani, M. B ; Sharif University of Technology
Elsevier Ltd
2016
Abstract
In stressful situations such as severe accidents in nuclear power plants, operators need support tools to ease decision making in the selection of accident management measures. Following the Three Mile Island (TMI) accident in 1979, the first severe accident in a nuclear power plant, Accident Management Support Tools (AMSTs) were extensively developed and installed in a number of nuclear power plants. Lessons learned from the Fukushima accident highlighted the importance of accident management in mitigation severe accidents and suggested the reconsideration of accident management programs, which in turn created the need for AMSTs adaption and modernization. This paper provides the first...
Analysis the Posibiliy of Transferring Water from Dearator to Steam Generator in Bushehr Nuclear Power Plant in During SBO
, M.Sc. Thesis Sharif University of Technology ; Vousoghi, Naser (Supervisor) ; Ghofrani, Mohamad Bagher (Supervisor)
Abstract
Secondary circuit “feed and bleed” strategy is considered as as the severe accident management strategy with the goals of heat removal from the primary circuit to the secondary one, steam condensing in the primary circuit, natural circulation recovery by the primary circuit loops or return of water from the pressurizer to the primary circuit loops and wetting the core fuel elements In this study, a proposed solution was presented and analyzed for implementing the strategy of feed and bleed the Bushehr NPP secondary circuit during station blackout. For this purpose, first, the design information of the primary and secondary circuit of the Bushehr NPP and its working conditions at full power...