GE Offers Gas Turbine Hybrid Electric Drives

press release
Monday, May 07, 2012

Ideal for Noise Reduction, Redundancy, Improved Fuel Economy.

 

GE Marine offers hybrid electric systems for military and commercial marine customers based on its LM aeroderivative gas turbines, motors and drives, to help reduce noise and improve fuel economy. By teaming with a variety of industry players, GE can provide customers unmatched gas turbine hybrid electric and all electric propulsion systems integration experience.

 

Hybrid electric arrangements cross-connect the ship service power system with the propulsion system by placing an electric motor and its associated motor drive in the drive train. At lower speeds, the propulsion system, such as engines are turned off and the electric motors provide cruising power. 

 

“Many ship owners and builders are currently evaluating hybrid electric propulsion designs for existing or new build ships. Thanks to many years in this industry forming key partnerships, GE can now offer more comprehensive hybrid electric propulsion solutions for military and commercial customers,” said Brien Bolsinger, general manager, GE Marine, Evendale, Ohio.

 

In fact, GE has provided components on seven gas turbine hybrid or electric powered ship classes in service or under construction, including the unique propulsion system on the United States Navy’s LHD 8 USS Makin Island. GE offers a family of LM2500 gas turbines from 22 to 32 megawatts for twin or single gas turbine hybrid plants.  In addition to the LHD 8-class ships, GE LM2500s are used on a variety of hybrid propulsion plants, including the German Navy’s F124 and F125 frigates, and the Italian and French FREMM frigates.

 

Hybrid System Benefits

 

Hybrid electric propulsion provides navies with the following benefits versus traditional propulsion systems:

 

• Improved fuel economy
• Fewer installed prime movers for reduced propulsion costs
• Reduced diesel maintenance costs
• Flexible, integrated power and propulsion systems to direct power as needed
• Improved combat capability

 

Hybrid Electric Propulsion

 

“In fact, in ships similar to the U.S. Navy’s DDG 51 class, hybrid electric propulsion can improve fuel economy because the hybrid propulsion motor load during low speed operation can be consolidated with the ship service load.  This allows the ship service generator set to run at more efficient operating conditions and the larger propulsion gas turbines to be shut down. Thus, fuel burn can be reduced by more than 8% depending on the ship’s operating profile,” Bolsinger added.

In new designs – particularly frigates from 3,000 to 7,000 tonnes – a hybrid electric arrangement improves efficiency. The traditional COmbined Diesel Or Gas turbine (CODOG) or COmbined Diesel And Gas turbine (CODAG) frigates have two gas turbines and two diesels for propulsion and typically four diesels for ship service power (see Figure 1). With GE’s hybrid electric arrangement, the two propulsion diesels can be eliminated and replaced by electric motors. This arrangement can reduce ship construction, propulsion equipment, and maintenance costs while helping reduce noise and improve combat capabilities.

Dual Gas Turbine Hybrid Arrangement

 

GE’s LM2500 gas turbines, for instance, can be applied in a dual gas turbine hybrid arrangement versus a single gas turbine configuration to provide the lowest technical, cost, schedule and operational risk. If incorporated into an existing LM2500 CODOG ship design, GE believes a dual gas turbine configuration requires the fewest ship modifications such as changes to bulkheads, uptakes, stability, the second platform level, and the deckhouse.


 

Maritime Today


The Maritime Industry's original and most viewed E-News Service

Maritime Reporter April 2016 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Energy

India's Highest non-coking coal discharge at Gangavaram Port

Gangavaram Port, the deepest and the most modern port in the country, has created yet another historical milestone record by discharging 1,56,339 metric tons of Non-Coking Coal from the vessel M.

Floating Products Storage in Focus

For much of 2015, talk of floating storage was dominated by speculation that the contango in crude futures might support crude floating storage, says Gibson Tanker Report.

Olympic Subsea Vessel Bags Contract

Olympic Shipping has secured a contract for Olympic Delta, an inspection, maintenance and repair (IMR) vessel, with an international client  to work on a renewable energy project.

Marine Power

Ocean Economy Set to Double in Size by 2030

The world’s oceans must be managed well to ensure the potential of an “ocean economy” that was worth US $ 1.5 trillion in 2010.   "Calculations based on the

Mercury Marine Expands Manufacturing Capacity

Mercury Marine is adding a 53,000 square foot manufacturing capacity expansion to its global headquarters in Fond du Lac, Wisc. The expansion will consist of 45,

Pacific Nations Take a Stand on Shipping Emissions

On Earth Day, Pacific leaders queued among 175 countries to sign the Paris Agreement in New York. Earlier that day in London, the International Maritime Organization (IMO),

LNG

Pressure Steady on LNG Shipping Rates -Drewry

LNG shipowners will have to wait until 2018 for earnings to improve, when the majority of new US plants are expected to come online, according to the latest edition

Samsung Heavy Loses $4.6-bln FLNG Order

South Korea’s shipbuilder Samsung Heavy Industries (SHI), the world’s third-largest shipbuilder,  has received a contract termination for three floating liquefied

AIDAprima Makes Maiden Call at Southampton

AIDA Cruises’ new flagship AIDAprima docked in Britain’s Southampton port for the first time on the morning of April 27, 2016, as part of a four-day short cruise.

Marine Equipment

Symphony Sun’ Launched in Leer

On Friday the 29th of April, Nb. 420 was launched in Leer. She was christened ‘Symphony Sun’ and is the fourth vessel in a series of 6 that will be delivered to Symphony Shipping.

Mercury Marine Expands Manufacturing Capacity

Mercury Marine is adding a 53,000 square foot manufacturing capacity expansion to its global headquarters in Fond du Lac, Wisc. The expansion will consist of 45,

Conquest Installs 850t Crane on Allseas Solitaire

Conquest Offshore was contracted by Allseas to remove a 300-ton crane and transport and install a 850-ton Huisman crane on board of one of the largest pipe-lay vessels in the world, Allseas Solitaire.

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Security Maritime Standards Naval Architecture Navigation Pipelines Pod Propulsion Sonar Winch
rss | archive | history | articles | privacy | contributors | top maritime news | about us | copyright | maritime magazines
maritime security news | shipbuilding news | maritime industry | shipping news | maritime reporting | workboats news | ship design | maritime business

Time taken: 0.1306 sec (8 req/sec)