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An experimental study on the fireproof performance of fire damper according to change of the insulation conditions on the exposed side and unexposed side of the coaming

코밍 노출면 방열 두께 및 비 노출면 방열 길이 변화에 따른 방화 댐퍼의 내화성능에 관한 실험적 연구

  • Choi, Tai-Jin (Safety Environment Team, Korea Marine Equipment Research Institute) ;
  • Kim, Joung-Sik (Safety Environment Team, Korea Marine Equipment Research Institute) ;
  • Lim, Young-Soo (Safety Environment Team, Korea Marine Equipment Research Institute) ;
  • Lee, Kyung-Hyun (Safety Environment Team, Korea Marine Equipment Research Institute) ;
  • Kang, Ho-Keun (Korea Maritime and Ocean University) ;
  • Park, Sung-Ho (Research and Development Department, Dong-A Fan & Blower) ;
  • Kim, You-Taek (Division of Marine System Engineering, Korea Maritime and Ocean University)
  • Received : 2013.09.25
  • Accepted : 2013.12.09
  • Published : 2014.01.31

Abstract

In this paper, Fire resistance test was carried out in accordance with the change of the insulation conditions on the exposed side and unexposed side of the coaming to obtain optimal insulation conditions for class H-120 insulation in connection with specimen-1 of the preceding paper for the evaluation of fireproof performance for fire dampers according to hydrocarbon fire conditions. As a test result, specimen-2(88 mm, $171^{\circ}C$) was satisfied class H-120 insulation, but specimen-3(76 mm, $181^{\circ}C$) was exceeded thermal insulation acceptance criteria at 110 minutes, therefor, specimen-2(88 mm) is optimal insulation conditions as possible lightweight than specimen-1. Test result comparison, we concluded that temperature rising of the coaming insulation surface was influenced by conductive heat from the bulkhead, and coaming surface was influenced by radiant heat from blade & coaming.

본 논문에서는 탄화수소화재 조건에 따른 방화 댐퍼의 내화성능 평가에 대한 선행논문 실험체 -1(126 mm, $136^{\circ}C$)에 대하여 H-120 등급 방열성 확보가 가능한 최적의 코밍 방열 조건을 도출 하고자 노출면 코밍 방열 두께와 비 노출면 코밍 방열 길이 변화를 변수로 하여 내화실험을 수행 하였다. 내화실험 결과 실험체-2(88 mm, $171^{\circ}C$)는 H-120 방열성 허용기준을 만족하였으나, 실험체-3(50 mm, $185^{\circ}C$)은 110분에 방열성능 허용기준을 초과하는 것으로 나타나 실험체-2의 방열 조건이 실험체-1로부터 경량화가 가능한 최적의 방열 조건으로 확인 되었으며, 온도상승에 대한 비교결과 노출면 코밍 방열두께가 감소될 경우 방열재 표면온도는 격벽을 통한 전도열에 의한 영향 크며, 코밍 표면온도는 블레이드와 노출면 코밍으로부터 방사되는 복사열에 의한 영향이 큰 것으로 판단된다.

Keywords

References

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