Journal of the Korean Society of Marine Environment & Safety (해양환경안전학회지)

The Korean Society of Marine Environment and safety (해양환경안전학회)
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A Numerical Study on the Design of Water Mist Lance for Fire Suppression in Container

컨테이너 내부 화재진압을 위한 물분무창 설계에 관한 수치적 연구

  • Han, Sang-goo (KOEM) ;
  • Choi, Jae-hyuk (Division of Marine System Engineering, Korea Maritime & Ocean University) ;
  • Lee, Won-Ju (Division of Marine Engineering, Korea Maritime & Ocean University)
  • 한상구 (해양환경관리공단) ;
  • 최재혁 (한국해양대학교 기관시스템공학부) ;
  • 이원주 (한국해양대학교 기관공학부)
  • Received : 2017.11.03
  • Accepted : 2017.12.28
  • Published : 2017.12.31
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Abstract

Increasing marine transportation of dangerous goods using containers causes fire accidents on ships due to leakage of dangerous materials. In IMO (MSC.93), all vessels that are to be loaded five or more containers on weather deck area after 1 January 2016 are required to have a fire extinguishing system called Water Mist Lance (WML) on board. In this study, numerical analysis is performed to design WML with optimal edge radius of curvature using LS-DYNA. The analysis results for the three models with 10 mm, 15 mm and 20 mm lengths of the edge part showed that the only model with 15 mm length penetrated the wall of the container and did not cause damage to the edge of the WML. In the future, based on the results of this study, we will make a WML of prototype and conduct a performance test. And we will continue to improve the problems.

컨테이너를 이용한 위험물의 해상운송이 증가함에 따라 적재불량으로 인한 위험물의 누설 등으로 선박에서 화재사고가 발생하고 있다. 한편, IMO(MSC.93)에서는 2016년 1월 1일 이후 건조되는 개방갑판상에 컨테이너를 5단 이상 적재하도록 된 모든 선박은 물분무창(Water Mist Lance, WML)이라는 소화장치를 선박에 의무적으로 비치하도록 규정하였다. 본 연구에서는 LS-DYNA를 이용하여 최적의 첨단곡률반경을 가지는 WML을 설계하기 위한 수치해석을 수행하였다. 첨단부분의 길이가 10 mm, 15 mm, 20 mm인 3가지 모델에 대한 해석결과 길이가 15 mm인 경우만 컨테이너 벽면을 관통하고, WML의 첨단부분에 손상을 일으키지 않는 결과를 나타내었다. 향후, 본 연구결과를 바탕으로 테스트용 WML를 제작하여 성능실험을 할 계획이며, 문제점은 지속적으로 개선해 나갈 것이다.

Keywords

References

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