WinGD will report the primary set up of its new X-S short-stroke engine design following profitable manufacturing unit acceptance checks with engine builder Dalian Marine Diesel in March.
The six-cylinder, 62cm-bore 6X62-S2.0 engine can be put in on a pulp service being constructed for a Chinese proprietor at COSCO Dalian shipyard.
The X-S sequence succeeds the well-established RT-flex50 and RT-flex58 engines and is offered in 52cm and 62cm bore sizes, for the vary of gas choices together with conventional diesel or dual-fuel LNG, methanol and ammonia operation.
The mixture of a compact, easy, design and best-in-class gas effectivity – round 10g/kWh decrease than equal RT-flex engines, a saving of round 4% relying on working profile – make the brand new platform preferrred for vessels that profit from short-stroke engines, says WinGD.
The X-S mixture of shorter stroke size and better engine speeds permits smaller propellers to generate related energy to long-stroke engines of comparable cylinder bore. The compact design is well-suited to vessels that function in shallow drafts or want decrease important deck or engine room top.
The present fleet of short-stroke engine customers contains container feeders, automotive carriers, multipurpose cargo vessels, ro-ro/con-ro vessels and a number of other others. The X-S sequence has additionally been designed particularly to make short-stroke engines a gorgeous energy resolution for bulk carriers and tanker vessels that don’t require the largest engine bore sizes.
As properly as lowering gas consumption, the working prices of the brand new X-S engines provide additional efficiencies because of its sturdy and light-weight design. Maintenance is simplified because of decrease piston top, whereas the engines additionally characteristic prolonged time between overhauls in comparison with earlier short-stroke generations.
For dual-fuel X-S engines, clever management by exhaust recycling (iCER) permits vessels to cut back gas consumption and meet Tier III NOx in each fuel and diesel modes with out separate selective catalytic discount (SCR), whereas lowering methane slip when utilizing LNG.
The first set up of an iCER-equipped X-S engine is at present underneath preparation for a 7,000 CEU pure automotive/truck service (PCTC). Those X62DF-S engines may also characteristic WinGD’s Variable Compression Ratio (VCR) expertise, permitting additional effectivity enhancements by dynamically optimizing engine compression ratio for the gas used, engine load, ambient circumstances and different parameters.