MAN B&W G-Engines, Green ultra long stroke engines

Product catalog summary

Introduction to MAN B&W G-Engines
The MAN B&W G-type engines are designed as ultra-long stroke engines, offering significant advancements in fuel efficiency and CO2 emission reductions. These engines are particularly suited for large ships, providing a perfect balance of power and environmental benefits.

Key Benefits of G80ME-C Engine

Longer stroke reduces engine speed, enhancing ship design efficiency.
Aligns with market trends for fuel optimization.
Delivers power with notable fuel savings and CO2 emission reductions.
Allows for larger, more efficient propellers.
Incorporates advanced technologies like auto-tuning, Alpha lubricator, and integrated electronic controls.

Design and Development
The G-type engine follows the principles of the large bore S-type Mk 9 engine series, with an even longer stroke to reduce engine speed. This design supports the development of highly efficient ship designs. The G-series ranges from 50 to 80 bore, representing a significant development in the MAN B&W engine portfolio.

Market Adaptation and Rationale
Traditionally, MAN B&W S-type engines have been used in tankers and bulkers due to their long stroke and low engine speed. However, larger container vessels are now also adopting these engines to utilize larger propeller diameters, enhancing efficiency and reducing operational costs.

Performance and Efficiency
The G-type engines enable tankers and bulk carriers to operate at lower speeds, fully exploiting potential savings. The engines are designed to work with the latest aft-hull designs, allowing for larger and more efficient propellers.

Technical Specifications

Bore: 800 mm
Stroke: 3,720 mm
Mean Piston Speed (Vpist): 8.93 m/s
Stroke/Bore Ratio (S/B): 4.65
Mean Effective Pressure (MEP): 21 bar
Power Output: 4,710 kW/cyl at 72 rpm

Conclusion
The MAN B&W G-type engines represent a significant advancement in marine engineering, offering substantial improvements in fuel efficiency and environmental impact. These engines are a strategic choice for modern shipping, aligning with global trends towards sustainability and cost-effectiveness.

Catalog excerpts

MAN B&W G-Engines, Green ultra long stroke engines-1

MAN B&W G-Engines A perfect partner for large ships All data provided in this document is non-binding. This data serves informational purposes only and is especially not guaranteed in any way. Depending on the subsequent specific individual projects, the relevant data may be subject to changes and will be assessed and determined individually for each project. This will depend on the particular characteristics of each individual project, especially specific site and operational conditions. Copyright © MAN Diesel & Turbo. 1510-0161-04ppr Aug 2016 Printed in Denmark MAN B&W G-type engine benefits  Longer stroke reduces the engine speed, facilitat- Follows the market trend for fuel optimisation Enables vessels to be fitted with larger and more Equipped with the latest MAN B&W technologies ing ship designs with higher efficiency efficient propellers Delivers power with significant fuel savings and including auto-tuning, Alpha lubricator and fully in- tegrated electronic controls. MAN Diesel & Turbo – a member of the MAN Group 1 MAN B&W G-Engines Green ultra long stro

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MAN B&W G-Engines, Green ultra long stroke engines-2

MAN B&W G-Engines Solid green potential MAN B&W G-Engines The new generation of optimised engines Main engine SMCR power kW 70,000 10 cyl. Longer stroke Larger propeller resulted in the development of a complete engine pro- In recent years, larger container vessels have also been gramme in the G-series from 50 to 80 bore. specified with S-type engines because of the oppertu- nity they offer to employ larger propeller diameters. presents the biggest development within the MAN of larger and more efficient propellers, the new MAN tion of the ME electronic engine. Using the latest aft-hull designs...

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