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Systems Engineering Approach to Reengineering of YGN 3&4 Safety Depressurization System Retrofit Design
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 Title & Authors
Systems Engineering Approach to Reengineering of YGN 3&4 Safety Depressurization System Retrofit Design
Choi, Mun Won; Kim, Kyu Wan; Han, Ki In;
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 Abstract
The purpose of this paper is to present the results of reengineering of the YGN 3&4 (Yonggwang Nuclear Power Plant, Units 3&4) SDS (Safety Depressurization System) retrofit design and to make recommendations for the improvement in design and design procedure implementing the Systems Engineering (SE) process. YGN 3&4 is a basic model for OPR1000 (the Korean standard 1000 MWe plant). The basic model, herein, represents the reference plant for the OPR1000 development. In the middle of the YGN 3&4 construction, the Korean Nuclear Regulatory Body requested a retrofit of this plant with a means to rapidly depressurize the plant in conformance with a severe accident mitigation requirement. For the reengineering of the SDS in YGN 3&4, V-model and functional and physical architectures have been developed. A SE decision making method has been used for the selection of SDS valves. Finally, recommendations have been made to improve OPR1000 design for the improved operation and enhanced safety.
 Keywords
Systems engineering;Reengineering;Retrofit;SDS (safety depressurization system);V-model;pressure relief valve;
 Language
English
 Cited by
 References
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