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Life cycle assessment is applied to achieve the economic performance analysis of low-pressure gas supply systems for dual fuel engines. Three mainstream pressure boosting methods for LNG supply in low-pressure fuel gas supply systems are analysed, which are external gas source boosting, self-pumping and pump boosting regulation. The system operation is simulated by modelling in Aspen HYSYS software. The system life cycle costs are compared, and the implementation effects of the three system options are analysed and evaluated. The total life-cycle cost of the three options is highest for the external gas source booster option and lowest for the self-pressurization option, and the self-pressurization option is the lowest in all stages of life cycle cost.

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Economic Analysis of Fuel Gas Supply System Based on Life Cycle Assessment

  • 会议论文

  • 出版模式：

    开放获取

  • 发表日期：

    2026年

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  • Min Lin,
  • Jinjin Xu,
  • Yuhang Wang,
  • Cheng Qian

摘要

Life cycle assessment is applied to achieve the economic performance analysis of low-pressure gas supply systems for dual fuel engines. Three mainstream pressure boosting methods for LNG supply in low-pressure fuel gas supply systems are analysed, which are external gas source boosting, self-pumping and pump boosting regulation. The system operation is simulated by modelling in Aspen HYSYS software. The system life cycle costs are compared, and the implementation effects of the three system options are analysed and evaluated. The total life-cycle cost of the three options is highest for the external gas source booster option and lowest for the self-pressurization option, and the self-pressurization option is the lowest in all stages of life cycle cost.