New Fuel-Saving 2-Speed Marine Gearbox From Wärtsilä

MarineLink.com
Wednesday, December 04, 2013
Fuel-saving gearbox: Image credit Wärtsilä

Engine manufacturer Wärtsilä has launched a new 2-speed marine gearbox, which it says offers notable economic and environmental benefits. The product will serve vessels having multiple operational modes or reduced transit speed, including among others: ropax ferries, offshore support vessels, tug boats, and fishing vessels.

Compared to a single mechanical propulsion system, a fuel consumption reduction of eight per cent was verified with Wärtsilä's 2-speed gearbox during sea trials. It is anticipated that further reductions of up to 15 per cent can be achieved, with a similar lowering of nitrogen oxide (NOx) and sulphur oxide (SOx) exhaust emissions.

These cost savings and environmental benefits are achieved by operating the ship's propeller at low speed when maximum vessel speed or propeller thrust is not required. At the same time, the engine speed is kept constant, thereby allowing the electric power generation from the Power Take-Off on the gearbox to remain uninterrupted.

The first ship to utilise the new Wärtsilä 2-speed marine gearbox is a rescue vessel owned by the Rescue & Salvage Bureau of the People's Republic of China's Ministry of Transport. The sea trials have been successfully carried out at the Huangpu shipyard in China. The vessel operates mostly in low speed mode and reaches full speed only for limited periods of time.

Wärtsilä say that the new gearbox will be available with a high degree of modularization in the power range from 2 MW to 10 MW, and they will continue to introduce its range of 2-speed marine gearboxes throughout 2014 and 2015.
 

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

People & Company News

Hornbeck Offshore Ride High on Q2 2014 Results

Hornbeck Offshore Services, Inc. has announced its financial results for the second quarter ended June 30, 2014.  Following are highlights for this period and excerpts

BAE Systems Awarded Two Navy Contract Modifications

The US Department of Defense informs it has awarded separate contracts to BAE Systems in Jacksonville and in Norfolk for ship repairs and modifications as follows: 1.

DW to Present at Upcoming Floating LNG 2014, Houston

Douglas-Westwood (DW) says that its manager in Houston, Andrew B. Meyers will be joining the speakers on the platform at the upcoming 27th-30th October 2014 'Floating

Technology

There’s Still Time for SHIPPINGInsight Award Entries

Entry submissions for the first SHIPPINGInsight Award are due Friday, Aug. 1, but organizers said they will continue to accept nominations through following week to provide some extra time.

Joint Project Studies Condition-based Engine Monitoring

Classification society ClassNK announced that it will participate in a joint project together with Mitsui Engineering & Shipbuilding Co., Ltd. and MES Technoservice Co.

Resolve Maritime Academy's New Wet Trainer Facility

Resolve Maritime Academy informed it has started building a new, two-story wet trainer, larger and more expansive than its original, the L/V Gray Manatee. “We

Marine Power

There’s Still Time for SHIPPINGInsight Award Entries

Entry submissions for the first SHIPPINGInsight Award are due Friday, Aug. 1, but organizers said they will continue to accept nominations through following week to provide some extra time.

Burger Boat to Build New Passenger Vessel

Burger Boat Company announced that it has received a contract for the construction of an 89-foot (27-meter) steel passenger vessel for Wendella Sightseeing Company, Chicago, Ill.

Joint Project Studies Condition-based Engine Monitoring

Classification society ClassNK announced that it will participate in a joint project together with Mitsui Engineering & Shipbuilding Co., Ltd. and MES Technoservice Co.

 
 
Maritime Careers / Shipboard Positions Maritime Security Maritime Standards Pipelines Port Authority Salvage Ship Electronics Ship Repair Ship Simulators 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: 0.1822 sec (5 req/sec)