Page 40: of Maritime Reporter Magazine (November 2023)

GENSETS

HHI-EMD has developed a 4-stroke HiMSEN methanol engine.

Image courtesy of Hyundai Heavy

Industries Engine & Machinery Division

GENSETS

NEW FUELS BUT PERENNIAL GOALS

Fuel ? exibility may be a key driver for recent developments in gensets, but the perennial goals of lowering CapEx and OpEx remain.

By Wendy Laursen uel ? exibility is one of the pillars of decarbonization try for China Merchants Energy Shipping. The 21/31DF-M is that is being embraced by genset OEMs. Fuel ef? - based on a simple port fuel-injection concept that optimizes ciency, a second pillar, goes hand in hand with that reliability, while simultaneously minimizing capital outlay.

Fbecause new fuels will be more expensive, but these “The foundation for the new L21/31DF-M genset is the concerns come in addition to the on-going drive to reduce Ca- existing L21/31 genset which has accumulated more than 55 pEx and OpEx for shipowners. million operating hours with thousands of engines in ser-

MAN Energy Solutions introduced its auxiliary MAN vice,” says Bjarne Foldager, Senior Vice President and Head 35/44DF CD engine in June 2023. It is designed to be future- of Two-Stroke Business. “The L21/31DF-M power range proof and will be ready for methanol operation by 2026. Sep- spans 1,000-1,980kW, which makes it suitable for most mer- hardim Koblenz, Head of Licensing, MAN Energy Solutions, chant vessels.” notes though: “Both shipyards and shipowners greatly ap- Foldager expects methanol to ? gure prominently as a future preciate auxiliary engines that are easily installed and main- fuel across all vessel segments. “The new genset bene? ts from tained, while reliability and cost-optimization are also key.” the high reliability, high performance and fuel ? exibility of

MAN also recently received its ? rst order for small-bore, the 21/31 engine platform, while the possibility to operate on seven-cylinder MAN 21/31DF-M methanol-burning gensets green methanol as a drop-in fuel increases its fuel-? exibility. for six PCTCs being built by China Merchants Heavy Indus- Simultaneously, it also increases methanol’s potential as an 40 Maritime Reporter & Engineering News • November 2023

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