General Electric Gas Turbines
COGES
COGES is an acronym for a combined gas turbine and steam turbine, electric and steam production plant for cruise ship propulsion using an integrated electric drive system configuration.
Gas turbines designed for aircraft propulsion are by their very nature lightweight, compact, efficient, and very reliable. They are used extensively on military ships where the mission of the transport must not be compromised by a need to carry large propulsion equipment requiring significant spares and crew. Modern Cruise ships have traditionally been powered by large diesel engines. These engines provide power to propellers either through gears or through integrated electric systems. The COGES plant replaces the diesel engine with gas turbine engines and provides the following advantages:
About 1500 to 3000 sq. meters of more space is made available on the ship for passenger and crew accommodations, as well as improved services arrangements.
Reduced engine room crew because the generator sets require very little maintenance between major overhauls. The major maintenance will be done by land-based shops rather than by the ship's crew.
Approximately 90 fewer components and 5000 less meters of piping.
An environment friendly ship with significant reduction in SOx, NOx, particulates, and no sludge disposal required. The environmental improvements will meet all envisioned IMO requirements: this relieves the owner of planning emission control retrofit projects.
A more reliable and available ship because of the ease of maintenance.
Improvement in the productivity and efficiency of personnel in the engine room, as well as onshore personnel who would otherwise manage an extensive inventory of diesel parts.
LM6000 Gas Turbine
For additional information about General Electric marine packages, contact E. G. Duarte & Associates or
GE Energy:
2707 North Loop West,
Houston, Texas 77008
Tel. 713.803.0900
Fax 713.803.0347
ÓCopyright 2006 Captain E. G. da Costa Duarte, all rights reserved.