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عنوان دوره: اولین دوره بین المللی و بیست و هشتمین دوره ملی (1400)

Various pressure control systems (Pressurizer) are adopted in industrial applications to satisfy their characteristics. In accordance with the purpose of using nuclear facilities, steam, gas-steam, and gas PRZs have been used. On the other hand, the dynamic behavior of PRZs is different in the same transients. This study has been evaluated for the University of Wisconsin High-Pressure Critical Heat Flux (WHPCHF) facility as the base loop. The dynamic behavior of the three PRZs on the base loop is evaluated during transients. The results showed that the use of the NC gas increases the peak pressure due to the lack of NC gas condensation during transient conditions. the use of gas PRZ makes it possible to change the pressure quickly. Also, the pure gas PRZ has the highest peak pressure but has straightforward control logic. The gas PRZ is the best choice for small reactors and high-pressure test facilities.

Pressurizer؛ dynamic behavior؛ peak pressure؛ control logic؛ test facility