MAN B&W G- Engines - Green Ultra-Long-Stroke G-type Engines

Since we are  familiarised with Intelligence Engines,the field had paved a way for the GREEN ENGINES considering the environment.......

The green ultra long stroke G-type engine delivers lower rpm with

significant fuel and CO2 reductions of up to 7% as part of a propulsion package.

Ole Grøne, Senior Vice President Low-Speed Sales and Promotions, MAN Diesel & Turbo, said: “The G-type is an ultra-long-stroke engine and represents the biggest development within our engine portfolio since the successful introduction of the ME electronic engine within the last decade.”

The G-type engine has a design that follows the principles of the large bore (“S-type”) Mk 9 engine series introduced in 2006. The G-type is designed with an even longer stroke to reduce engine

speed, and thereby paving the way for ship designs with unprecedented high efficiency. MAN Diesel & Turbo follows the development in the shipping market closely and has kept an eye on the trend towards fuel optimisation in recent years. The company has experienced great interest in the G-type engine from our customers, which has resulted in the development of a complete engine programme in the G-series from 50 to 80 bore.

The G-type is an ultra long stroke engine and represents the biggest development within the MAN B&W engine portfolio since the successful introduction of the ME electronic engine.

Rationale for G-type introduction

Tanker and bulkers have traditionally used MAN B&W S-type engines with their long stroke and low engine speed as prime movers, while larger container vessels have tended to use the K-type engines with their higher engine speed.

Savings in operating costs %

Propeller  -    3.6

Engine      -   1.0

Total         -  4.6

In recent years, larger container vessels have also been specified with S-type engines because of the opportunity they offer to employ larger propeller diameters.

Using the latest aft-hull designs that allow the use of larger and more efficient propellers, the new MAN B&W G-type engines will enable tankers and bulk carriers to operate at even lower speeds and fully exploit the savings potential.

BENEFITS

Longer stroke reduces the engine speed, facilitating ship designs with higher efficiency

● Follows the market trend for fuel optimization

● Delivers power with significant fuel savings and CO2 emission reduction

● Enables vessels to be fitted with larger and more efficient propellers

● Equipped with the latest  B&W technologies including auto-tuning, Alpha lubricator and fully integrated electronic controls.