Nuclear Science and Techniques

《核技术》(英文版) ISSN 1001-8042 CN 31-1559/TL     2019 Impact factor 1.556

Nuclear Science and Techniques ›› 2011, Vol. 22 ›› Issue (1): 60-64 doi: 10.13538/j.1001-8042/nst.22.60-64

• NUCLEAR ENGINEERING • Previous Articles    

Core cooling in pressurized-water reactor during water injection

TAO Jun LI Jingxi TONG Lili CAO Xuewu   

  1. School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
TAO Jun, LI Jingxi, TONG Lili, CAO Xuewu. Core cooling in pressurized-water reactor during water injection.Nuclear Science and Techniques, 2011, 22(1): 60-64     doi: 10.13538/j.1001-8042/nst.22.60-64


In this paper, the reactor core cooling and its melt progression terminating is evaluated, and the initiation criterion for reactor cavity flooding during water injection is determined. The core cooling in pressurized-water reactor of severe accident is simulated with the thermal hydraulic and severe accident code of SCDAP/RELAP5. The results show that the core melt progression is terminated by water injection, before the core debris has formed at bottom of core, and the initiation of reactor cavity flooding is indicated by the core exit temperature.

Key words: Water injection, Severe accident, Severe accident management guideline, Core damage state, Cavity flooding, PWR