Top image: The cruise ship Queen Mary 2 on the River Elbe near Glückstadt, Germany. The vessel is powered by two aeroderivative turbines developed by GE Aviation. Image credit: Torsten Bolten Above: The Royal Navy’s next-generation aircraft carrier HMS Queen Elizabeth is wired with GE electrical technology. Image credit: The Royal Navy
GE has a long naval history. Its turbo-electric systems powered the collier USS Jupiter, the U.S. Navy’s first electric ship, which launched in 1913. But its maritime businesses boomed with the recent acquisition of Converteam, the century-old French power conversion company that specializes in building heavy-duty systems that transform mechanical motion into electricity. Today, their systems power more than 70 electric cruise ships and dozens of merchant, military and offshore vessels. The flotilla includes the Queen Mary 2 luxury liner, the next-generation stealth destroyer USS Zumwalt, some of the world’s largest LNG tankers, and the Francisco, the world’s fastest ship.
The wake behind the Francisco, the world’s fastest ship. The 325-foot ferry is powered by two GE turbines and can go as fast as 58 knots, or 67 mph. Image credit: Incat
The new Marine business combines the company’s naval prowess with jet engine design, locomotive engines, and oil and gas expertise. “We need smarter, greener marine solutions,” said Tim Schweikert, the head of the new GE Marine business, in an opinion piece published by IdeasLab. “It’s not enough to boast the fastest engine or the biggest hull on the seas — it’s about being able to do more with less energy and a smaller environmental impact.”
This Cheoy Lee Z-Tech 6500 tug built for the Panama Canal Authority is powered by two GE engines develloped by GE Transportation. Image credit: Canal de Panamá
For example, the business is building powerful propulsion systems that demand less fuel and produce fewer emissions. The U.S. Navy’s first hybrid ship, the 800-foot long USS Makin Island, which can carry almost 100 helicopters and 3,000 sailors and marines, is using an electrical and gas propulsion system designed by GE. It saved the Navy more than 4 million gallons of fuel, worth $15 million, during its first seven-month deployment.
GE Marine will also design dynamic positioning (DP) systems that allow captains to steer a near perfect course on roiling seas, or to stay put exactly in one place. (This comes in handy on a ship drilling a well or supplying an oil platform.)
Drill ships are using DP systems connected to multiple thrusters to stay in one place. Photo credit: EEP S.A.
The DP technology includes a combination of high-tech navigation systems such as GPS, ultrasonic beacons and lasers that feed data to a powerful computer for processing. An array of thrusters and propellers listen to its commands, compensate for ocean current, waves and wind, and keep the ship in the right place. The system will serve on supply vessels that are being built by Brazil’s Starnav Serviços Marítimos Ltda.
GE is also helping the marine industry explore the digital world and connect ships to the Industrial Internet. For example, sensors throughout the ship’s engine and propulsion system not only work to ensure everything is working properly, but can help with predictive maintenance.
For a sector responsible for transporting 90 percent of the world’s goods, the possibilities of realizing just 1 percent reduction in unplanned downtime is wind in its sails.