MAN DUAL-FUEL METHANOL ENGINE PASSES TYPE APPROVAL TEST
Genset receives approval from all major class societies in attendance at CSSC Marine Power event. MAN Energy Solutions (MAN ES) announced that its MAN 7L21/31DF-M dual-fuel methanol engine passed its Type Approval Test (TAT) at licensee CSSC Marine Power’s (CMP) production facility in Zhenjiang, China.
The genset received approval from all major classification societies present at the event, said MAN ES.
The methanol engine is built on a part-load optimised MAN 21/31 Mk II type and boasts a world-best specific fuel-oil consumption in the 1–2 MW range, according to the manufacturer. The L21/31 engine platform is widely adopted in the market, with sales approaching 3,000 units. Sales of the DF-M variant have reached double digits since its 2024 launch.
MAN ES said that the dual-fuel methanol version of its medium-speed, small-bore engine for GenSet and diesel-electric propulsion pairs well with its methanol-fuelled, MAN B&W ME-LGIM two-stroke engine.
Michael Køel Andersen, head of testing, MAN Energy Solutions, said: “Integrating a methanol system into our well proven L21/31 engine has taken around two years, including some 18 months of intense testing at MAN Energy Solutions facilities. Being able to stand here today with an approved engine and concept – despite the tight timeline and intense R&D development that was demanded – is an important milestone for our business. It also demonstrates that our GenSets are agile and ready for the future market.” Hakon Juel Hansen, manager global promotion and business development, MAN Energy Solutions, said: “We have seen significant growth within the dual-fuel sector and market demand for fuel-flexible engines is strong. Sales of the 21/31DF-M have already reached double digits since its official market launch in 2024, showing that we are capable of providing solutions to power the merchant fleet in what is a period of uncertainty in terms of customer fuel-strategy.”
Source: Seatrade Maritime News
