Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
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EFFECTS OF AN ORIFICE-TYPE FLOW RESTRICTOR ON THE TRANSIENT THERMAL-HYDRAULIC RESPONSE OF THE SECONDARY SIDE OF A PWR STEAM GENERATOR TO A MAIN STEAM LINE BREAK

가압경수로 주증기관 파단시 증기발생기 2차측 과도 열수력 응답에 미치는 오리피스형 유량제한기의 영향

  • Jo, J.C. (Reactor System Evaluation Department, Korea Institute of Nuclear Safety) ;
  • Min, B.K. (Reactor System Evaluation Department, Korea Institute of Nuclear Safety)
  • 조종철 (한국원자력안전기술원 계통평가실) ;
  • 민복기 (한국원자력안전기술원 계통평가실)
  • Received : 2015.08.03
  • Accepted : 2015.08.31
  • Published : 2015.09.30
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Abstract

In this study, a numerical analysis was performed to simulate the thermal-hydraulic response of the secondary side of a steam generator(SG) model equipped with an orifice-type SG outlet flow restrictor to a main steam line break(MSLB) at a pressurized water reactor(PWR) plant. The SG analysis model includes the SG upper steam space and the part of the main steam pipe between the SG outlet and the broken pipe end. By comparing the numerical calculation results for the present SG model to those obtained for a simple SG model having no flow restrictor, the effects of the flow restrictor on the thermal-hydraulic response of SG to the MSLB were investigated.

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References

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