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Performance Analysis Based on Fuel Valve Train Control Optimization of Ammonia-Fuel Ships

Author

Listed:
  • Lim Seungtaek

    (Korea Research Institute of Ships & Ocean Engineering, Daejeon 34103, Republic of Korea)

  • Lee Hosaeng

    (Korea Research Institute of Ships & Ocean Engineering, Daejeon 34103, Republic of Korea)

  • Seo Youngkyun

    (Korea Research Institute of Ships & Ocean Engineering, Daejeon 34103, Republic of Korea)

Abstract

In order to reduce carbon emissions, which are currently a problem in the shipping and offshore plant sectors, the international community is strengthening regulations such as the Energy Efficiency Design Index (EEDI) and Energy Efficiency Existing Ship Index (EEXI). To cope with this, eco-friendly fuel propulsion technology is being developed, and the development of an ammonia fuel supply system is in progress. Among them, fuel valve train (FVT) technology was researched for the final supply and cutoff of fuel and purging through nitrogen for ammonia engines. In this paper, we analyzed the change in ammonia supply due to FVT opening and the change in nitrogen supply due to closure. In addition, a plan to minimize risk factors was presented by applying a control method to remove residual fuel in FVT. According to the presented FVT model, the difference in the flow rate of supplied fuel was as much as 17.8 kg/s. Additionally, by opening the gas bleed valve at intervals during the closing process and purging about 0.28 kg of nitrogen, the internal fuel could be completely discharged. This is expected to have an impact on improving the marine environment through the application of eco-friendly fuels and the development of fuel supply system technology.

Suggested Citation

  • Lim Seungtaek & Lee Hosaeng & Seo Youngkyun, 2024. "Performance Analysis Based on Fuel Valve Train Control Optimization of Ammonia-Fuel Ships," Energies, MDPI, vol. 17(10), pages 1-17, May.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:10:p:2272-:d:1390690
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