Journal of the Society of Naval Architects of Korea (대한조선학회논문집)

The Society of Naval Architects of Korea (대한조선학회)
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Efficiency Evaluation of a Hybrid Propulsion Fuel Cell Ship Based on AIS Data

항적 데이터에 기반한 하이브리드 추진 연료전지 선박의 효율 평가

  • Donghyun Oh (Department of Naval Architecture & Ocean Engineering, Pusan National University) ;
  • Dae-Seung Cho (Global Core Research Center for Ships and Offshore Plants, Pusan National University)
  • 오동현 (부산대학교 조선해양공학과) ;
  • 조대승 (부산대학교 조선해양플랜트 글로벌핵심연구센터)
  • Received : 2023.03.07
  • Accepted : 2023.04.03
  • Published : 2023.06.20
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Abstract

Efforts have been made to reduce the greenhouse gas emissions from ships by limiting the energy efficiency index, and net zero CO2 emission was proposed recently. The most ideal measure to achieve zero emission ship is electrification, and fuel cells are considered as a practical power source of the electrified propulsion system. The electric efficiency in the electrochemical reaction of fuel cells can be achieved up to 60% practically. The remaining energy is converted to heat energy but most of them are dissipated by cooling. In the author's previous research, a hybrid propulsion system utilizing not only electricity but also heat was introduced by combining electric motor and steam turbine. In this article, long term efficiency is evaluated for the introduced hybrid propulsion system by considering a virtual 24,000 TEU class container carrier model. To reflect a more practical operating condition, the actual navigation data of a similar real ship in the real world were collected from automatic identification system data and applied. From the result, the overall efficiency of the hybrid propulsion system is expected to be higher than a conventional electric propulsion fuel cell ship by 30%.

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References

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