- MAN Energy Solutions’ new dual-fuel GenSet engine delivers up to 16% higher output and significantly lower emissions compared to competitors.
- Equipped with adaptive combustion technology and ready for alternative fuels like methanol, it represents a future-proof solution for shipowners.
- The engine supports both auxiliary power generation and electric propulsion, offering CAPEX and OPEX savings with strong environmental credentials.
MAN Energy Solutions has successfully completed the Type Approval Test (TAT) of its latest dual-fuel L35/44DF engine at constant speeds of 720 and 750 rpm, suitable for both auxiliary generator sets and electric propulsion. Conducted between April 7–11 at STX Engine’s headquarters in Changwon, South Korea, the testing was attended by six major classification societies. The trials included both variants of the engine: the methane-capable 35/44DF CD and the methanol-ready 35/44CD.
The L35/44DF CD is an advanced iteration of the L35/44DF CR engine originally launched in 2015. It incorporates MAN’s Adaptive Combustion Control (ACC) system, which dynamically monitors combustion conditions to optimize fuel injection in real time. This ensures higher efficiency, reliability, and lower emissions.
Targeting Cleaner and Smarter Marine Operations
According to Alexander Knafl, Senior Vice President of MAN Energy Solutions, the 35/44DF CD engine has been in development for three years in collaboration with STX Engine and is expected to find strong demand among LNG carriers and container ships. Key advantages include significant reductions in methane slip and a flexible design that supports emerging alternative fuels such as methanol. The engine also provides 16% more output than similar market offerings, strengthening its appeal in competitive operational environments.
Sephardim Koblenz, Vice President and Head of Licensing for Four-Stroke Marine & License at MAN, highlighted the engine’s built-in connectivity, cybersecurity measures, and its design focused on fuel efficiency, reliability, and ease of localization. These qualities are aligned with long-term sustainability goals while helping reduce both capital and operational expenditures for shipowners.
Designed for Long-Term Relevance and Environmental Performance
The MAN 35/44DF CD builds on the performance legacy of the 35/44DF CR and 32/44CR models, which together have accumulated millions of operating hours. With up to 85% reduction in methane slip compared to industry standards and minimal greenhouse gas emissions, the new engine positions itself as a cornerstone in MAN’s strategy for sustainable marine propulsion.
Engineered with cost-effectiveness, technological sophistication, and environmental compliance in mind, this next-generation GenSet is set to play a crucial role in the evolving landscape of marine energy solutions.
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Source: MAN Energy Solutions
