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

The Korean Society of Marine Environment and safety (해양환경안전학회)
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Study on Priority Decision for Ship's Alternative Fuel Selection Using Fuzzy TOPSIS Method

퍼지 TOPSIS 기법을 이용한 선박 대체 연료 선정의 우선순위 결정에 관한 연구

  • Jeonghak Lee (Division of Marine System Engineering, Mokpo National Maritime University) ;
  • Juyeong Shin (Division of Marine System Engineering, Mokpo National Maritime University) ;
  • Jaehoon Jee (Division of Coast Guard, Mokpo National Maritime University)
  • 이정학 (국립목포해양대학교 기관시스템공학부) ;
  • 신주영 (국립목포해양대학교 기관시스템공학부) ;
  • 지재훈 (국립목포해양대학교 해양경찰학부)
  • Received : 2024.01.19
  • Accepted : 2024.02.23
  • Published : 2024.02.28
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Abstract

At the 80th session of the MEPC, the IMO presented an enhanced GHG reduction strategy. The strategy is more specific and robust than the initial strategy presented at the 72nd session. The IMO aims to achieve 'Net Zero' GHG emissions from international shipping by 2050. In this study, a risk assessment was conducted for representative green fuels, namely. LNG, hydrogen, methanol, and ammonia. The fuzzy method was used to resolve the subjective ambiguity of results from the survey of the experts, and the positive and negative ef ects of the fuzziness were derived through the TOPSIS method. Finally, the closeness coefficients of the considered alternative fuels were determined using the Vertex method. As a result, methanol, LNG, hydrogen, and ammonia were preferred. This study suggests that the proposed approach can be used as a collective decision-making tool for selecting alternative fuels.

MEPC 80차 회의에서 IMO는 더욱 강화된 온실가스 감축 전략을 제시하였다. 기존의 72차 회의에서 제시하였던 초기전략보다 구체적이고 강화된 감축 전략이다. IMO는 2050년 무렵까지 국제 해운으로부터 온실가스 배출을 'Net Zero'에 도달하도록 전략을 세웠다. 이 논문에서는 대표적인 친환경 연료로 구분되는 LNG, 수소, 메탄올, 암모니아의 위험도 평가를 진행하였다. 전문가들의 설문조사를 통한 결과를 퍼지 기법을 적용하여 주관적인 모호성을 해결하였다. 또한 TOPSIS 기법을 통해서 퍼지의 긍정적인 해와 부정적인 해를 도출하였다. 이를 통해서 Vertex 방법을 이용하여 대체 연료의 근접계수 값을 최종적으로 구하여 결정하였다. 그 결과, 메탄올, LNG, 수소, 암모니아 순으로 선호하였다. 이 연구는 제안된 접근 방식이 대체 연료를 결정을 위한 집단 의사결정 방법으로 이용할 수 있음을 보여준다.

Keywords

Acknowledgement

본 연구는 2023년도 한국해양수산개발원이 후원한 「해양수산 미래연구 논문공모전」 수상작임.

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