Main Engine 4-Stroke · Main Engines (4-Stroke)
This engine is commonly used in large marine vessels for propulsion, where it operates efficiently at low speeds and high loads, contributing to fuel efficiency and reduced emissions. The Wärtsilä 10LW38B is a 4-stroke, medium-speed diesel engine with a cylinder bore of 380 mm and a stroke of 475 mm, delivering a power output of 5200 kW at 600 rpm. It can run on heavy fuel oil (HFO) or marine diesel oil (MDO), and is designed to operate with two-stage turbocharging and intercooling to maximize efficiency. The engine features common rail direct injection, ensuring precise fuel delivery for optimal combustion. Each cylinder produces 610 kW, with a mean effective pressure of 30 bar, and the specific fuel oil consumption (SFOC) at the optimal point is 167.7 g/kWh. Maintenance concerns include potential carbon deposit accumulation and cylinder liner wear, which can be mitigated with proper lubrication and regular inspections.
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