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 August 2015 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

People & Company News

USCG Respopnds to Sunken Vessel Near Sitka, Alaska

The Coast Guard is responding to the sinking of a fishing vessel in Kelp Bay near Sitka Friday. Coast Guard personnel from Sector Juneau, the Coast Guard

Next LCS to be Named USS Minneapolis/St. Paul

Secretary of the Navy Ray Mabus announced today that the next Freedom-variant littoral combat ship will be named USS Minneapolis/St. Paul (LCS 21). The future Minneapolis/St.

Hapag-Lloyd Adds 6,000 Reefer Containers

In order to profit from the growing reefer markets in South America and Asia, Hapag-Lloyd has ordered 6,000 cutting-edge reefer containers – more than ever before in the company’s history.

Technology

Hapag-Lloyd Adds 6,000 Reefer Containers

In order to profit from the growing reefer markets in South America and Asia, Hapag-Lloyd has ordered 6,000 cutting-edge reefer containers – more than ever before in the company’s history.

ICTSI Manila Starts Container Booking System

The Manila International Container Terminal (MICT) in the Port of Manila has started implementing a vehicle appointment system called Terminal Appointment Booking

Rosneft, Gazprom to Receive Four Arctic Fields

Ministry of the Environment sent to the government documents on the transfer of "Rosneft" and "Gazprom" licenses for the development of four more fields on the Arctic shelf,

Marine Propulsion

Neander Deal Sees Yanmar Return to Diesel Outboards

Marking its return to the diesel outboard market, engineering company Yanmar Marine International (YMI) has reached an agreement for exclusive distribution rights

Automatic Camera for Monitoring Vessel Engine Developed

NYK and the Monohakobi Technology Institute  have jointly developed “Kirari NINJA” (patent pending), a device that can automatically photograph the interior of a vessel engine’s combustion chamber.

CTruk Delivers Wind Farm Support Vessel

Shipbuilder CTruk Boats, a manufacturer of composite wind farm support vessels (WFSV), has delivered the second workboat in a two-craft order from CWind.   The

Marine Power

Neander Deal Sees Yanmar Return to Diesel Outboards

Marking its return to the diesel outboard market, engineering company Yanmar Marine International (YMI) has reached an agreement for exclusive distribution rights

Virginia-Class Submarine Named USS Iowa

Secretary of the Navy Ray Mabus hosted a ship-naming ceremony today in Ames, Iowa to announce that SSN 797, a Virginia-class attack submarine, will bear the name USS Iowa.

CTruk Delivers Wind Farm Support Vessel

Shipbuilder CTruk Boats, a manufacturer of composite wind farm support vessels (WFSV), has delivered the second workboat in a two-craft order from CWind.   The

 
 
Maritime Contracts Maritime Standards Naval Architecture Pipelines Pod Propulsion Port Authority Ship Electronics Ship Repair 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: 0.6142 sec (2 req/sec)