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 Reporter August 2014 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Energy

Deep Sea Supply takes Delivery of 'Sea Triumph'

The Deep Sea Supply  took delivery of the newbuilding Platform Supply Vessel 'Sea Triumph'  on Thursday 18 September.  The vessels 'Sea Triumph' is a STX 05-L

Tropical Storm Polo Threatens Battered Mexican Resort of Los Cabos

Tropical storm Polo barreled nearer on Friday to the Mexican Pacific resort of Los Cabos where thousands of troops were restoring order following widespread

Keystone XL Costs to Nearly Double - TransCanada

The total cost of TransCanada Corp's controversial Keystone XL pipeline is likely to nearly double following six years of regulatory delays, a company spokesman said on Friday.

Marine Power

Dann Marine Repowers With Cummins Tier 3 Engines

Dann Marine Towing, LC., is a fifth generation family owned and operated tugboat company based in Chesapeake City, MD. The model-bow twin-screw tug Sea Coast was

General Dynamics Wins US Navy Award for F/A-18 Mission Computers

General Dynamics Advanced Information Systems, a business unit of General Dynamics, was awarded a $16.2 million contract by the U.S. Navy to produce Type-3 Advanced

Vroon’s VOS Famous Launched

Vroon’s newbuilding ERRV, VOS Famous, was launched in China yesterday. This 50-m ERRV (emergency response and rescue vessel) is under construction at Nanjing East Star Shipyard.

LNG

Chevron To Find Buyers for Hawaiian Refinery

Chevron Corp has hired an investment bank to identify potential buyers of its 54,000 barrel-a-day refinery in Kapolei on the Hawaiian island of Oahu, a company official said.

Rotterdam Integrates Safety Research with LNG Training Facility

The Dutch company Falck Risc is becoming the number one expert on LNG safety in Europe. Together with the Unified Fire Department, Falck Risc will draw up guidelines

Antwerp Port Seeks Inputs on Setting-up LNG bunkering

By the beginning of 2016 the port of Antwerp will have an LNG bunkering and filling station for barges. The procedure for construction of the station is currently under way.

Marine Equipment

Lilaas Engages Imtra for N. American Distribution

Strong prospects in the North American marine equipment market have triggered a new importation and distribution agreement between control specialist Lilaas

Sulzer Shareholder has 5 pct Dresser-Rand Stake

Russian billionaire Viktor Vekselberg's Swiss investment firm Renova Group said on Friday it had a 4.99 percent stake in U.S.-based Dresser-Rand, which might become the object of a takeover battle.

MAN-Powered Cargo Vessel Meets Tier III

Classification society awards SCR system emissions certificate. MAN Diesel & Turbo has been awarded a Tier III - compatibility certificate by the DNV- GL classification

 
 
Maritime Careers / Shipboard Positions Maritime Security Naval Architecture Navigation Offshore Oil Port Authority Ship Electronics Ship Repair Shipbuilding / Vessel Construction Sonar
rss | archive | history | articles | privacy | terms and conditions | 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: 0.2354 sec (4 req/sec)