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12V28/33D-GS-60Hz

Auxiliary Engine (Generator Set) · Auxiliary Engines

Class-certified type (DNV register) · technical data sheet not yet verified​‌⁠‍‌‍‌‌‌‌‍⁠‌​⁠​​‍‌⁠
3,840 kWPower
12Cylinders
280 mmBore
330 mmStroke

This marine diesel engine operates on a four-stroke cycle with sequential turbocharging to optimize performance and efficiency. The MAN Energy Solutions 12V28/33D-GS-60Hz is designed for marine applications requiring robust and reliable power generation. It features a bore of 280 mm and a stroke of 330 mm, producing a maximum continuous rating of 3840 kW at 900 rpm. The engine uses Marine Diesel Oil (MDO) as its primary fuel, with an option for Heavy Fuel Oil (HFO) in certain configurations. The engine is equipped with MAN TCA turbochargers that automatically cut off the second turbocharger at part load to maintain optimal performance. Common maintenance issues include clogged seawater cooling system strainers, turbocharger fouling due to sodium and vanadium compounds, and wear on fuel injectors and cylinder liners. Regular inspections and preventive maintenance are recommended to address these issues, ensuring the engine remains in optimal condition for extended periods of operation.

Specifications

Technical data.reference — unverified

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Swept volume per cylinder20.3 dm³ (20.3 liters)
Specific Fuel Oil Consumption (SFOC) at 85% MCR183.5 g/kWh
Power per cylinder at MCR455 kW per cylinder at 1,000 rpm
Mean Effective Pressure (MEP)Not explicitly specified in sources - requires datasheet access
Compression ratio16.5:1 (typical for MAN four-stroke marine diesel)
Sequential turbochargingMAN TCA turbochargers with automatic second TC cutoff at part load
Firing orderFour-stroke cycle (4 strokes per complete cycle)
Engine weightNot publicly detailed in accessible sources
Power (kW)3840
Speed (rpm)900
Fuel TypeMDO
ConfigurationV
Genset Output (kW)3648
Genset Output (kVA)4560
Frequency (Hz)60
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