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<p>This study examines the effects of the organic Rankine cycle as a replacement of diesel generators for reducing carbon emissions from ships. On-ship performance of the designed systems was analyzed by applying the system to a Panamax and post-Panamax II ship. Two scenarios for deploying the cycle were prescribed where the partial load of the diesel generator is replaced by the cycle for case 1, and the cycle fully replaces the generator for case 2. For results, the energy requirement for case 2 was 6.21 times larger than case 1, which was approachable by operating 2 separate cycles with exhaust gas and jacket cooling water as heat sources. Environmental assessment with case 2 revealed that 654 and 3578 tons of carbon emissions were depletable and $0.09, $0.49 million US dollars of fuel cost savings. CII analysis results showed improvement of 1.05 to 5.49 % with the application of designed system.</p>

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Analysis of on-ship organic Rankine cycle and energy storage system as a replacement of diesel generators for reducing carbon emissions

  • 期刊论文

  • 发表日期：

    2025年11月4日

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  • Ji-Won Yoon,
  • Ho-Saeng Lee,
  • Se-Gyu Kim,
  • Seung-Taek Lim

摘要

This study examines the effects of the organic Rankine cycle as a replacement of diesel generators for reducing carbon emissions from ships. On-ship performance of the designed systems was analyzed by applying the system to a Panamax and post-Panamax II ship. Two scenarios for deploying the cycle were prescribed where the partial load of the diesel generator is replaced by the cycle for case 1, and the cycle fully replaces the generator for case 2. For results, the energy requirement for case 2 was 6.21 times larger than case 1, which was approachable by operating 2 separate cycles with exhaust gas and jacket cooling water as heat sources. Environmental assessment with case 2 revealed that 654 and 3578 tons of carbon emissions were depletable and $0.09, $0.49 million US dollars of fuel cost savings. CII analysis results showed improvement of 1.05 to 5.49 % with the application of designed system.