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MAN Engines lately put its first two dual-fuel hydrogen-powered engines for work boats into serial operation. The engines are twelve-cylinder diesel engines of sort MAN D2862 LE448, every with an output of 749 kW (1019 hp) at 2100 rpm. The engines are IMO Tier III-certified and outfitted with a Selective Catalytic Discount exhaust fuel aftertreatment system.
For twin gasoline operation with hydrogen and/or diesel gasoline, MAN Engines has transformed a standard diesel engine of sort MAN D2862 LE428 into the D2862 LE448. Solely the hydrogen injection system (proven right here in blue) has been retrofitted. The output, working behaviour and different traits of the diesel engine stay unchanged.
Each V12 engines have been ready for dual-fuel operation by MAN Engines, and supplemented with a hydrogen injection system by growth companion CMB.TECH. The low-emission engine is used on the world’s first hydrogen-powered crew switch vessel (CTV), the “Hydrocat 48” from Windcat Workboats.
What’s particular about our expertise is that we use a standard diesel engine, which doesn’t should be optimized for hydrogen.
—Werner Kübler, Head of Improvement at MAN Engines
The Hydrocat 48 from Windcat Workboats is the primary crew switch vessel with a low-emission twin gasoline hydrogen drive.
A confirmed V12 marine engine is thus used during which hydrogen is launched into the cost air by way of an adapter and is added to the combustion cycle. The combustion course of is began in response to the diesel precept, which requires the injection of approx. 5% of diesel gasoline. The diesel gasoline frequent rail injection parameters have been optimized right here for twin gasoline operation.
Hydrocat engine room.
MAN Engines has long-standing expertise within the growth of fuel-saving and dependable diesel engines, together with for work boats. Constructing on this expertise, we have been additionally capable of obtain one of the best consumption values in twin gasoline operation, and make sure the similar working behaviour as displayed by diesel operation at full load. On the similar time, we additionally cut back CO2 tailpipe emissions via the usage of hydrogen by a mean of approx. 50%, and even as much as 80% as a peak worth.
—Werner Kübler
An extra benefit of utilizing the traditional and complicated diesel engine is the accustomed simple dealing with with regards to upkeep and repair. Furthermore, pure diesel operation can proceed with out interruption if the hydrogen provide is exhausted.
By beginning with twin gasoline combustion engines, we are able to make hydrogen expertise operational within the business and kick-start additional growth of the expertise, regulation, provide chain, and so on.
—Willem van der Wel, Managing Director of Windcat Workboats
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