Main Engine 4-Stroke · Main Engines (4-Stroke)
Large marine vessels often require powerful and reliable engines to propel them across the oceans. The Wärtsilä 12VW50SG is a 12-cylinder, V-configured engine with a bore of 500 millimeters and a stroke of 580 millimeters. It operates at a speed of 514 revolutions per minute and utilizes natural gas as fuel through a spark-ignited gas (SG) technology. This engine boasts a displacement of 17 liters per cylinder and is turbocharged with an intercooler. The Wärtsilä 12VW50SG generates 11,400 kilowatts of power and adheres to IMO Tier II (MARPOL 73/78 Annex VI) emission standards. The engine's Mean Effective Pressure (MEP) is 25.5 bar at 900 RPM and 24 bar at 1000 RPM. Piston speed reaches 9.6 meters per second at 900 RPM and 10.7 meters per second at 1000 RPM. The Wärtsilä 12VW50SG has a Specific Fuel Oil Consumption (SFOC) of 186-192 g/kWh under ISO conditions at 85% load.
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