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10LW46 Methanol

Main Engine 4-Stroke · Main Engines (4-Stroke)

Class-certified type (DNV register) · technical data sheet not yet verified​‌⁠‍‌​‍​‌​​‌​​​‍​​‌‍
6,500 kWPower
10Cylinders
460 mmBore
580 mmStroke

This powerful engine utilizes a four-stroke design, featuring two-stage turbocharging with intercooling and common rail direct injection, to deliver robust performance. This Wärtsilä 10LW46 Methanol engine is a dual-fuel unit capable of operating on both methanol and marine diesel oil (MDO). It boasts a power output of 6500 kW and a robust configuration with 10 cylinders, each delivering 610 kW in diesel mode. The engine's bore measures 460 mm, and the stroke is 580 mm, achieving a piston speed of 10.75 m/s at an operating RPM of 600. Wärtsilä has achieved a Mean effective pressure (BMEP) of 30 bar and a specific fuel oil consumption (SFOC) of 167.7 g/kWh at its optimal operating point.

Specifications

Technical data.reference — unverified

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Cylinder power610 kW/cyl (diesel)
Mean effective pressure (BMEP)30 bar
SFOC (diesel)167.7 g/kWh (optimal point)
Weight (8V31)~57.1 tonnes (dry, diesel)
Weight (16V31)~89–92.5 tonnes (dry, diesel)
Piston speed10.75 m/s
TurbochargingTwo-stage turbocharging with intercooling
Fuel injectionCommon rail direct injection
Valve layout2 inlet, 2 exhaust valves per cylinder
Power (kW)6500
Speed (rpm)600
Fuel TypeMethanol/MDO (Dual-Fuel)
ConfigurationL
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