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

Energy

Technip Bags Statoil's Umbilical Supply Contract

Technip’s wholly-owned subsidiary Technip Umbilicals Ltd.(1) has been awarded a contract by Statoil ASA to supply the umbilical(2) to the Oseberg Vestflanken 2 field offshore Norway.

Wood Group Bags Statoil MSA

Wood Group has been awarded an evergreen master services agreement (MSA) by Statoil to support the life cycles of its offshore  and onshore facilities. Work and

ABB Saves 700,000 tons Fuel for Marine Vessels

ABB’s environmental friendly Azipod propulsion system brings greater fuel efficiency to diverse shipping segments ABB today announced the total fuel savings

Marine Power

G7 Meeting to Tackle Sea Row in Asia Pacific

Group of Seven (G7) leaders will call for respect for the rule of law and peaceful resolution to conflicts in a joint statement to be issued Friday at the end of their two-day summit,

ABB Saves 700,000 tons Fuel for Marine Vessels

ABB’s environmental friendly Azipod propulsion system brings greater fuel efficiency to diverse shipping segments ABB today announced the total fuel savings

First Cruise Company Fined under Australia’s New Fuel Rules

Australia’s NSW Environment Protection Authority (EPA) has fined Carnival PLC $15,000 after one of its P&O Cruises ships, the Pacific Jewel, breached new low sulfur fuel regulations in Sydney Harbour.

LNG

DSME, Sovcomflot Delay Delivery of First Arctic LNG carrier

South Korea's Daewoo Shipbuilding & Marine Engineering (DSME) and Sovcomflot have agreed to delay a liquefied natural gas carrier being built for the Yamal LNG project in Russia.

HUMMEL LNG Hybrid Barge Begins Second Season

For over one year the HUMMEL has been contributing to improved air quality at the port of Hamburg. Becker Marine Systems’ LNG Hybrid Barge will also be supplying

France's CGT Will Block Elengy's LNG Terminals

France's hardline CGT union said on Monday that workers at Elengy, which operates three liquefied natural gas (LNG) terminals in France, will go on strike from midnight until May 26 midnight included.

Marine Equipment

Nordic Shipholding Profits below Market Expectations

For the 3 months ended 31 March 2016, Nordic Shipholding A/S generated a profit after tax of USD 1.5 million, compared to USD 2.7 million in the same quarter last year.

Mount Whitney Makes History

USS Mount Whitney (LCC 20), the U.S. 6th Fleet flagship, made history today as the first amphibious command ship to have an MV-22B Osprey land on its flight deck, May 23, 2016.

Technip Bags Statoil's Umbilical Supply Contract

Technip’s wholly-owned subsidiary Technip Umbilicals Ltd.(1) has been awarded a contract by Statoil ASA to supply the umbilical(2) to the Oseberg Vestflanken 2 field offshore Norway.

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Standards Naval Architecture Pipelines Port Authority Salvage Ship Electronics Shipbuilding / Vessel Construction 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: 0.1217 sec (8 req/sec)