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8LH32/40 Methanol

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

Class-certified type (DNV register) · technical data sheet not yet verified​‌⁠‍‌​⁠​​​‍‌‌‍‍⁠⁠⁠⁠​
3,440 kWPower
8Cylinders
320 mmBore
400 mmStroke

The 8LH32/40 Methanol engine is a powerful 8-cylinder, 4-stroke design optimized for methanol and marine diesel oil (MDO) operation. Capable of delivering 3440 kW at 720 rpm with a compression ratio of 15:1, this heavy-duty maritime prime mover features a Miller Cycle configuration, enhancing efficiency through advanced combustion techniques. The engine's robust construction ensures reliable performance across various marine applications, while its dual-fuel capability allows for flexible fuel usage depending on operational needs and environmental regulations. Regular inspections, particularly focusing on turbocharger fouling, exhaust gas temperature balance, piston ring wear, cylinder liner condition, and fuel injector coking, are crucial to maintaining optimal engine efficiency and longevity.

Specifications

Technical data.reference — unverified

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Displacement193–643 liters depending on cylinder count
Compression Ratio15:1
Mean Effective Pressure (MEP)25.9/24.9 bar at 720/750 rpm
Specific Fuel Oil Consumption (SFOC)179 g/kWh at 720 rpm; 181 g/kWh at 750 rpm (100% load, ±5%)
Specific Lubricating Oil Consumption0.7 g/kWh
Power per Cylinder500 kW
Mean Piston Speed9.6/10.0 m/s at 720/750 rpm
Dry Weight (6H32/40)64.13 tons
Dry Weight (12H32/40V)85 tons
Design Type4-stroke, turbocharged, Miller Cycle, heavy fuel engine
Power (kW)3440
Speed (rpm)720
Fuel TypeMethanol/MDO (Dual-Fuel)
ConfigurationL
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