Journal of Advanced Research in Ocean Engineering

Korean Society of Ocean Engineers (한국해양공학회)
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Safety Assessment of LNG Transferring System subjected to gas leakage using FMEA and FTA

  • Lee, Jang-Hyun (Department of Naval Architecture and Ocean Engineering, Inha University) ;
  • Hwang, Seyun (Department of Naval Architecture and Ocean Engineering, Inha University) ;
  • Kim, Sungchan (Department of Naval Architecture and Ocean Engineering, Inha Technical College University)
  • Received : 2017.07.20
  • Accepted : 2017.08.31
  • Published : 2017.09.30
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Abstract

The paper considers the practical application of the FMEA(Failure Mode and Effect Analysis) method to assess the operational reliability of the LNG(Liquefied Natural Gas) transfer system, which is a potential problem for the connection between the LNG FPSO and LNG carrier. Hazard Identification (HAZID) and Hazard operability (HAZOP) are applied to identify the risks and hazards during the operation of LNG transfer system. The approach is performed for the FMEA to assess the reliability based on the detection of defects typical to LNG transfer system. FTA and FMEA associated with a probabilistic risk database to the operation scenarios are applied to assess the risk. After providing an outline of the safety assessment procedure for the operational problems of system, safety assessment example is presented, providing details on the fault tree of operational accident, safety assessment, and risk measures.

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