Swiss marine power company WinGD is to deliver X-DF-A ammonia-fuelled engine designs for four multi-gas carriers (MGC) to be built by HD Hyundai Mipo for Singaporean commodities trader and ship operator 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 another indication of the scaling up of global carrying capacity as ammonia becomes an increasingly important energy carrier globally. The order is one of several that WinGD has received for ammonia carrying vessels.

As reported recently, WinGD has already 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 the same as for diesel engines, with significantly lower NOx, ammonia emissions at less than 10 parts per million (ppm) and N2O emissions less than 3 ppm.

The engines for the new MGCs are scheduled to be delivered from early 2027 to early 2028.

ENDS…