Nuclear Engineering and Technology

  • 제38권2호
  • /
  • Pages.195-200
  • /
  • 2006
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  • 1738-5733(pISSN)
  • /
  • 2234-358X(eISSN)
한국원자력학회 (Korean Nuclear Society)
권호 표지

HYDROGEN BEHAVIOR IN THE IRWST OF APR1400 FOLLOWING A STATION BLACKOUT

  • 발행 : 2006.02.01
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초록

In order to confirm the integrity of IRWST following a severe accident, the hydrogen behavior inside and around the IRWST has been investigated for an SBO accident. A detailed containment model, including 18 control volumes for IRWST, has been developed. Analysis results show that the peak hydrogen concentration is about 57% during the core melting period. The combustion regime shows that flame acceleration and DDT are possible in the IRWST. The flame acceleration criterion is met when the peak hydrogen concentration occurs; the 7 -DDT criterion is also met during some periods. These results show certain measures may be required to assure IRWST integrity against an SBO accident.

키워드

참고문헌

  1. Ministry of Science and Technology, Severe Accident Policy Statement (August 30, 2001)
  2. H.C. Kim et al., Development and Application of the Severe Accident Hydrogen Control Requirements for the Korean Nuclear Power Plants, Proceeding of Korea Nuclear Society Conference (October 1998)
  3. Korea Electric Power Corporation, Standard Safety Analysis Report : Korean Next Generation Reactor, Chapter 19.2 (2000)
  4. Jongtae Kim et al., Hydrogen control in the APR1400 containment for the Hypothetical Station Blackout Accident, Proceedings of the Korean Nuclear Society Spring Meeting (May 2004)
  5. R. O. Gauntt et al., MELCOR Computer Code Manuals, Version 1.8.5 (May 2000)
  6. OECD/NEA, 'Flame acceleration and Deflagration-to-Detonation Transition in Nuclear Safety,' NEA/CSNI/R (2000)7