Proceedings of the Korean Nuclear Society Conference (한국원자력학회:학술대회논문집)
- 1996.05a
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- Pages.484-490
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- 1996
Development of Pressurizer Level Control System using Centrifugal Charging Pump and Letdown Orifices for YGN 5&6
- Jeong, Won-Sang (Korea Atomic Energy Research Institute) ;
- Shon, Suk-Whun (Korea Atomic Energy Research Institute) ;
- Seo, Ho-Taek (Korea Atomic Energy Research Institute) ;
- Seo, Jong-Tae (Korea Atomic Energy Research Institute) ;
- Lee, Sang-Keun (Korea Atomic Energy Research Institute)
- Published : 1996.05.01
Abstract
The Pressurizer Level Control System (PLCS) logic for YGN 5&6 was developed to incorporate the design changes on the Chemical and Volume Control System (CVCS). The YGN 5&6 CVCS uses the centrifugal charging pumps and letdown orifices replacing the positive displacement pumps and letdown control valves in the YGN 3&4 and UCN 3&4. The purpose of this study is to develop new PLCS as well as validate newly developed control logic and its implementation method in the simulation computer code. The analysis results show that the new PLCS has adequate ability to control the pressurizer level in response to the design bases events, and the simulation computer code is useful for YGN 5&6 NSSS design code.
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