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WinGD and Mitsubishi design ammonia fuel supply system

Mitsubishi Shipbuilding and WinGD have completed an initial ammonia fuel supply system design for WinGD’s X‑DF‑A engines.

The system includes a fuel valve unit, fuel conditioning and piping, as well as an ammonia catching system and other purging and venting safety features.

The design is the result of a partnership between the companies announced last year and will now move to the detailed design phase. In a press release, the partners said this will ensure that “ammonia capability is available to ocean going vessel operators ahead of regulatory requirements to reduce greenhouse gas emissions.”

The partnership will see WinGD develop its X-DF-A ammonia-fuelled engines for a range of vessel sizes, providing Mitsubishi with specifications for auxiliaries and installation. Mitsubishi will design vessels and set performance parameters for the engines as well as further developing the ammonia fuel supply system.

Sebastian Hensel, Director R&D, WinGD said: “At present, our primary focus is on advancing the technology of our clean-fuel solutions including our ammonia-powered X-DF-A engines, with the first delivery expected in Q2 2025. This collaboration will make sure that the auxiliary systems and integration capability are in place to apply our engine designs, and developing the fuel supply system concept is a crucial step in bringing ammonia fuel capability to the marine market.”

Manabu Kawakado, Head of Marine Engineering Centre, Mitsubishi Shipbuilding Co., Ltd. said: “Our partnership with WinGD has made rapid progress in less than a year since we launched the cooperation. Concluding the initial AFSS design at this stage puts us in a strong position to offer a complete fuel system to ship operators as demand for carbon-free ammonia fuel grows over the coming years.”
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