원자로용기 외벽냉각시 용기와 단열재 사이의 자연순환 이상유동에 관한 실험적 연구

An Experimental Study on the Two-Phase Natural Circulation Flow through an Annular Gap between Reactor Vessel and Insulation under External Vessel Cooling

  • 하광순 (한국원자력연구소 열수력안전연구부) ;
  • 박래준 (한국원자력연구소 열수력안전연구부) ;
  • 김환열 (한국원자력연구소 열수력안전연구부) ;
  • 김상백 (한국원자력연구소 열수력안전연구부) ;
  • 김희동 (한국원자력연구소 열수력안전연구부)
  • 발행 : 2003.04.23

초록

An 1/21.6 scaled experimental facility was prepared utilizing the results of a scaling analysis to simulate the APRI400 reactor and insulation system. The behaviors of the boiling-induced two-phase natural circulation flow in the insulation gap were observed, and the liquid mass flow rates driven by natural circulation loop were measured by varying the wall heat flux, upper exit slot area and configuration. And non-heating experiments have also been performed and discussed to certify the hydraulic similarity of the heating experiments by injecting air equivalent to the steam generated in the heating experimental condition.

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