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20V51/60DF Ammonia

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

Class-certified type (DNV register) · technical data sheet not yet verified​‌⁠‍‌‌‌​‌​‌​‍⁠‌​‍⁠‍‌
22,000 kWPower
20Cylinders
510 mmBore
600 mmStroke

Crew and engineers aboard vessels that operate in stringent emission control areas rely on robust, efficient power solutions to meet both regulatory requirements and operational demands. MAN Energy Solutions addresses these needs with the 20V51/60DF Ammonia engine, a powerhouse designed for optimal performance and environmental compliance. This advanced marine propulsion system delivers an impressive 6900 kW of power, ensuring that vessels can maintain high levels of efficiency and reliability. The consistent output of 6900 kW makes it a critical component for large-scale maritime operations, where dependable energy generation is essential for smooth sailing. By integrating this engine, ship operators can enhance their vessel's performance while adhering to strict environmental standards, thus ensuring both operational excellence and sustainability. The 20V51/60DF Ammonia engine stands as a testament to MAN Energy Solutions' commitment to innovation and meeting the evolving needs of the maritime industry.

Specifications

Technical data.from datasheet

Every value below comes from the manufacturer datasheet or class-society record on file for this model.

Swept Volume per Cylinder122.6 dm³
Output per Cylinder (MCR)1050 kW @ 500-514 rpm
Diesel Fuel Consumption (85% MCR)176 g/kWh
Gas Mode Consumption (85% MCR)7150 kJ/kWh
Dry Mass - 12V51/60DF (Propulsion)189 t
Dry Mass - 18V51/60DF (Propulsion)265 t
Engine CycleFour-Stroke
Emissions ComplianceIMO Tier II, IMO Tier III (Gas & Diesel+SCR modes)
Fuel FlexibilitySeamless switching between gas/liquid during operation
Power (kW)22000
Speed (rpm)500
Fuel TypeAmmonia/MDO (Dual-Fuel)
ConfigurationV
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Download datasheet (PDF) (431 KB)
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