LAPUR6 Stability Analysis on Power/Flow Map of Lungmen ABWR

Abstract:

This research aims at investigating the instability phenomena on the power-flow operating map of Lungmen nuclear power plant (NPP). Lungmen NPP is the first ABWR (Advanced Boiling Water Reactor) and under construction in Taiwan. It consists of two identical units with 3926 MWt rated thermal power and 52.2×10⁶ kg/hr rated core flow. In this research, decay ratios (the stability index) are calculated by LAPUR6. LAPUR6 is an analyzing core instability computer code based on the frequency domain approach. Before investigating the stability on Lungmen NPP operating map, some additional state points are carried out for validating with the SIRIUS-F experimental data. LAPUR6 results are consistent with the SIRIUS-F experimental data. Besides, LAPUR6 results of Lungmen NPP operating map show that the Lungmen NPP will not encounter core-wide or regional instability under normal operating or RIP trip event.

• Periodical: Applied Mechanics and Materials (Volumes 479-480)
• Pages: 548-552
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.479-480.548
• Online since: December 2013
• Authors: Hao Tzu Lin, Jong Rong Wang, Kuan Yu Chen, Shao Hsuan Chen, Chun Kuan Shih
• Keywords: ABWR, LAPUR6, Stability

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