Journal of the Korean Institute of Gas (한국가스학회지)

The Korean Institute of GAS (한국가스학회)
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Comparison of H2, LNG, and LPG explosion characteristics in a limited space using CFD Simulation

CFD 시뮬레이션을 이용한 제한된 공간에서의 수소, LNG, LPG 폭발특성 비교

  • Baek, Ju-Hong (Dept. of Chemical Engineering, Kwangwoon University) ;
  • Lee, Hyang-Jig (Dept. of Chemical Engineering, Kwangwoon University) ;
  • Jang, Chang Bong (Occupational Safety and Health Research Institute, Korea occupational safety and health agency)
  • 백주홍 (광운대학교 화학공학과) ;
  • 이향직 (광운대학교 화학공학과) ;
  • 장창봉 (안전보건공단 산업안전보건연구원 안전연구실)
  • Received : 2016.02.23
  • Accepted : 2016.05.18
  • Published : 2016.06.30
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Abstract

The demand for hydrogen is steadily increasing every year, and the facilities to produce and transfer hydrogen are being increased as well. Therefore, the possibility of a critical accident at hydrogen is expected to increase. Furthermore, the materials most likely to cause accidents at industrial sites are LPG 61%, hydrogen 12%, and LNG 10%, and the frequency of accidents due to these three combustible gases is relatively high. Thus, a CFD simulation was used to compute the explosion risk of danger-frequent combustible gases-hydrogen, LNG, and LPG-within a limited space, and the outcomes were compared and analyzed to review the risk of explosion of each gase within a limited space.

화석연료의 의존도를 줄이고자 대체에너지 연구가 활발하게 이루어지고 있는 현재, 산업에서 가장 많이 사용하고 있는 대체에너지 중 하나가 수소이다. 수소의 수요는 매년 꾸준히 증가하고 있으며, 수소의 생산 및 이송을 위한 설비도 늘어나고 있는 실정이다. 이에 따른 수소설비에서 중대사고가 발생할 확률 또한 증가할 것으로 예상된다. 또한 산업현장에서 가장 사고를 많이 초래하는 물질은 LPG 61%, 수소 12%, LNG 10%로 세 가지 가연성가스의 사고 빈도는 높은 축에 속한다. 따라서 산업용으로 많이 사용되며 사고다발성 가연성 가스인 수소, LNG, LPG가 제한된 공간에서 폭발했을 때의 폭발위험성에 대하여 CFD 시뮬레이션을 이용하여 계산을 하였고, 그 결과들을 기반으로 비교분석하여, 제한된 공간에서의 각 가스별 폭발에 대한 위험성을 검토하였다.

Keywords

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