Main Engine 4-Stroke · Main Engines (4-Stroke)
The Wärtsilä 9LW32 Ammonia engine operates on a 4-stroke cycle, utilizing a turbocharged, intercooled, direct fuel injection system. This dual-fuel engine, capable of running on both ammonia and Marine Diesel Oil (MDO), boasts a 9-cylinder, L-shaped configuration with a bore of 320 mm and a stroke of 400 mm, resulting in a displacement per cylinder of 32.2 liters. With a power output of 2790 kW at 750 RPM, the engine delivers a specific power output of 580 kW/cylinder. The cooling system employs a combination of seawater and freshwater, with charge air cooling facilitated by a dedicated cooler. The engine is equipped with Napier 357 turbochargers (with a Wärtsilä turbocharger safety package available) and features 2 inlet and 2 exhaust valves per cylinder. This engine complies with IMO Tier II (MARPOL 73/78 Annex VI) emissions standards.
Every value below comes from the manufacturer datasheet or class-society record on file for this model.
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