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This article presents a design analysis of retrofitting the rail service locomotive vehicle X534 originally used by the Austrian Federal Railways (ÖBB) from a diesel-electric system to a hydrogen-electric hybrid configuration. The conversion aims to address greenhouse gas emissions and achieve zero emissions in workplace environments. The vehicle operates in a stop-and-go mode for short distances and long trips to work sites, posing a challenge for a pure battery system due to range limitations. To overcome this limitation, a specific drive train configuration for the retrofitting has been adopted, comprising a 120 kW fuel cell system, a 70 kWh NMC Li-Battery, and three hydrogen tanks storing approximately 22 kg of hydrogen. A numerical model in Matlab/Simulink/Simscape framework, incorporating the hydrogen fuel cell system, cooling system, auxiliary systems, and the main components of the hybrid powertrain, demonstrates the feasibility and effectiveness of this retrofit. This research contributes to the ongoing efforts to find sustainable alternatives for traditional fossil fuel-based transportation systems. In particular, in the hypothesis of a green hydrogen scenario, a reduction of up to about 49 tons of CO2 per locomotive per year can be achieved.

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Hydrogen-Powered Rail Maintenance Vehicle: System Design and CO2 Emissions Reduction

  • 会议论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年

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  • Lorenzo Bartolucci,
  • Edoardo Cennamo,
  • Stefano Cordiner,
  • Federico Grattarola,
  • Vicenzo Mulone,
  • Ferdinando Pasqualini,
  • Alexander Schimanofsky,
  • Herbert Wancura

摘要

This article presents a design analysis of retrofitting the rail service locomotive vehicle X534 originally used by the Austrian Federal Railways (ÖBB) from a diesel-electric system to a hydrogen-electric hybrid configuration. The conversion aims to address greenhouse gas emissions and achieve zero emissions in workplace environments. The vehicle operates in a stop-and-go mode for short distances and long trips to work sites, posing a challenge for a pure battery system due to range limitations. To overcome this limitation, a specific drive train configuration for the retrofitting has been adopted, comprising a 120 kW fuel cell system, a 70 kWh NMC Li-Battery, and three hydrogen tanks storing approximately 22 kg of hydrogen. A numerical model in Matlab/Simulink/Simscape framework, incorporating the hydrogen fuel cell system, cooling system, auxiliary systems, and the main components of the hybrid powertrain, demonstrates the feasibility and effectiveness of this retrofit. This research contributes to the ongoing efforts to find sustainable alternatives for traditional fossil fuel-based transportation systems. In particular, in the hypothesis of a green hydrogen scenario, a reduction of up to about 49 tons of CO2 per locomotive per year can be achieved.