Swiss marine power company WinGD is to deliver X-DF-A ammonia-fuelled engine designs for four newbuild medium gas carriers (MGC) to be built by HD Hyundai Mipo for global commodities company Trafigura.
The 45,000m3 vessels will each be powered by a six-cylinder, 52-bore 6X52DF-A engine with high-pressure selective catalytic reduction. The Trafigura vessels are seen as another indication of the scaling up of global carrying capacity as ammonia becomes an increasingly important energy carrier. The order is one of several that WinGD has received for ammonia carrying vessels.
Benny Hilström, VP Market Development , WinGD, said: “Trafigura selected our technology based on our demonstration of X-DF-A’s development and strong performance indicators to date. With the first X-DF-A engine deliveries due in mid-2025, we will already have gathered significant construction and commissioning experience by the time these engines are delivered.”
WinGD has confirmed key combustion and performance characteristics for the X-DF-A on a test engine, with full-load running achieved with 5% pilot fuel consumption. Thermal efficiency is equivalent to diesel engines, with significantly lower NOx, ammonia emissions at less than 10ppm and N2O emissions less than 3ppm.
The engines for the new MGCs are scheduled to be delivered from early 2027 to early 2028.
Image: WinGD ammonia-fuelled test engine (source: WinGD)
