Nuclear Engineering and Technology

Korean Nuclear Society (한국원자력학회)
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EVALUATION OF AN ACCIDENT MANAGEMENT STRATEGY OF EMERGENCY WATER INJECTION USING FIRE ENGINES IN A TYPICAL PRESSURIZED WATER REACTOR

  • Received : 2015.04.29
  • Accepted : 2015.06.29
  • Published : 2015.12.25
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Abstract

Following the Fukushima accident, a special safety inspection was conducted in Korea. The inspection results show that Korean nuclear power plants have no imminent risk for expected maximum potential earthquake or coastal flooding. However long- and short-term safety improvements do need to be implemented. One of the measures to increase the mitigation capability during a prolonged station blackout (SBO) accident is installing injection flow paths to provide emergency cooling water of external sources using fire engines to the steam generators or reactor cooling systems. This paper illustrates an evaluation of the effectiveness of external cooling water injection strategies using fire trucks during a potential extended SBO accident in a 1,000 MWe pressurized water reactor. With regard to the effectiveness of external cooling water injection strategies using fire engines, the strategies are judged to be very feasible for a long-term SBO, but are not likely to be effective for a short-term SBO.

Keywords

Acknowledgement

Supported by : National Research Foundation of Korea

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  1. Iron-Chromium-Aluminum (FeCrAl) Cladding Oxidation Kinetics and Auxiliary Feedwater Sensitivity Analysis-Short-Term Station Blackout Simulation of Surry Nuclear Power Plant vol.4, pp.4, 2015, https://doi.org/10.1115/1.4040887
  2. Using artificial intelligence to identify the success window of FLEX strategy under an extended station blackout vol.382, pp.None, 2015, https://doi.org/10.1016/j.nucengdes.2021.111368