Fast Ferry Gets a New Power Package

By Maritime Reporter & Engineering News
Friday, December 06, 2013
Seastreak’s Wall Street Repower Synopsis Installed power: Reduced from 5696 kW to 3680 kW (35%) Fuel consumption: Reduced 30% (est. $500,000/year) Weight: Reduced 15 tonnes CO2 emissions: Per-passenger value halved

While many owners discuss ideas to suitably maintain maritime service while slashing operating costs, Seasteak LLC, owners a 43m fast ferry Wall Street, put words into action with a dramatic propulsion switch that saw the company maintain sailing schedule and speed while reducing fuel consumption 30% and CO2 emissions 50%.
Wall Street, a 43m fast ferry owned by Seastreak LLC of Atlantic Highlands, NJ, was originally built by Gladding-Hearch Shipbuilding and launched in 2003, the third of four sister vessels. As built, Wall Street was equipped with four KaMeWa A50 waterjets powered by four Cummins KTA50 diesel engines of 1424kW each and a total output of 5696 kW. At the time of construction, the vessel was state-of-the-art, and the four-engine package was selected with an emphasis on speed and reliability on the Atlantic Highlands, NJ, to Manhattan service.
As the equipment aged and fuel prices skyrocketed, however, the decision was taken to investigate repower options for the ferry, as the owner sought a reduction in both emissions and fuel consumption, as well as reduced maintenance cost and reduced wake during operation.
Seastreak’s director of vessel engineering developed estimates based on Servogear’s Ecoflow Propulsor concept. In cooperation between Servogear, Norway, Incat Crowther Design (the vessel’s original designer) and Seastreak, the repowering was studied.
With the assistance of a U.S. government energy efficiency improvement loan Seastreak made the decision to remove one ferry from service and refit it from a quadruple engine/water jet vessel to a twin engine twin screw Servogear CPP propulsion system.
In addition, the owner decided to power the vessel with a pair of MTU 16V4000M53 diesel engines rated 1840 kW each. In looking at the vessel’s operational profile, Servogear’s controllable pitch propellers, tunnel design and rudders promised a significant fuel saving at the vessel’s 32 knot operating speed. With Incat Crowther providing a comprehensive design service, preparing detailed drawings and documentation including revised Coast Guard submissions, the contract to perform the work was awarded to Midship Marine in Louisiana. The engine re-powering entailed a re-configuration of the vessel’s aft. The topsides and the undersides of the hulls were removed from the waterline down, from the forward engine room bulkhead aft. New engine beds, longitudinal stiffeners and plating were fabricated to support the MTU-engines and ZF-gearboxes. Servogear designed tunnels lower hull resistance and provide optimal inflow of water to Servogear’s propellers and rudders.
Together with interior and exterior modifications, Wall Street today is 15 tonnes lighter than when originally built.
At sea trials the vessel recorded speeds of 36 knots, and at equivalent deadweights, this represents a reduction in top speed of three knots, despite a significant reduction in power. When the increased passenger capacity is considered, the refit means that per-passenger CO2 emissions are halved.

The Servogear Ecoflow Propulsor
Servogear is a Norwegian company, and like many of its brethren, it was born in the early 1970s to serve a large, dynamic and technically stressed fishing fleet around Norway. Established in 1973 in Rubbestadneset, Norway, today the company serves a diverse customer base globally, from fast ferries to offshore service vessels to workboats and yachts. It employs 48 and to date has delivered more than 1500 gears and propulsion systems worldwide. The Servogear Ecoflow Propulsor concept is highlighted by a variable pitch propeller in a unique propeller tunnel. The entire system is inclusive of: a special effect rudder; shaft and support brackets; reduction gearboxes, and stern tubes.

  (As published in the November 2013 edition of Maritime Reporter & Engineering News - www.marinelink.com)

  • Servogear propeller bracket & propeller

    Servogear propeller bracket & propeller

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

Ship Repair & Conversion

Silversea Cruises Plans New Flagship

Cruise operator Silversea Cruises has unveiled its new flagship, the Silver Muse, which will begin sailing the seas in April 2017.    Built by Italian shipbuilding company Fincantieri,

ASRY Inks UK Royal Navy Support Contract

ASRY and Babcock have signed a long term support facility agreement to provide ongoing services to the U.K. Royal Navy in Bahrain   ASRY (Arab Shipbuilding & Repair Yard),

PPG Debuts New Antifoulings

Low-friction, self-lubricating coatings use patented technology to deliver reduced fuel consumption and improved tolerance to idle time.   PPG Protective and

Offshore

Technip Samsung JV Wins 2 FLNG Project Contracts

The Browse project covers the realization and installation of three FLNG units to develop the Brecknock, Calliance and Torosa fields in the Browse Basin, 425 kilometers North of Broome,

Fjords Processing Bags Johan Sverdrup Contracts

Fjords Processing, headquartered in Norway (Fornebu), has won three contracts for the deliveries of process systems for the Johan Sverdrup development in the North Sea.

Ocean Safety, Richard Irvin Marine Safety Merger

Ocean Safety has today announced the merger with Richard Irvin Energy Solutions Marine Safety Division and their Aberdeen branch.   This merger follows the

Marine Power

The Submarine Electricity Transmission Market Is Expected to Reach $25 Billion in 2024

According to a new report from Navigant Research, the global submarine electricity transmission market is expected to grow from $16.8 billion in 2015 to $24.8 billion in 2024.

Port Gothenburg Offering LNG

Ships running on liquefied natural gas (LNG) are going to be able to bunker at the Port of Gothenburg, as new regulations for LNG bunkering have been introduced

Firefighting Vessel Delivered to the US Army

New Orleans based maritime solutions company Technology Associates, Inc. (TAI) informs it has completed its contract for the design and construction of a fast response

Marine Equipment

New Binding Law of The Sea Agreement Advanced

WOC Sustainable Ocean Summit (Singapore, 9-11 November 2015) Will Enable Industry to Organize its Input to this Major New Ocean Treaty Development The U.N.

Technip Samsung JV Wins 2 FLNG Project Contracts

The Browse project covers the realization and installation of three FLNG units to develop the Brecknock, Calliance and Torosa fields in the Browse Basin, 425 kilometers North of Broome,

Fjords Processing Bags Johan Sverdrup Contracts

Fjords Processing, headquartered in Norway (Fornebu), has won three contracts for the deliveries of process systems for the Johan Sverdrup development in the North Sea.

Vessels

New Binding Law of The Sea Agreement Advanced

WOC Sustainable Ocean Summit (Singapore, 9-11 November 2015) Will Enable Industry to Organize its Input to this Major New Ocean Treaty Development The U.N.

Teekay LNG Partners Declares Distribution

Teekay GP LLC, the general partner of Teekay LNG Partners L.P. has declared a cash distribution of $0.70 per unit for the quarter ended June 30, 2015. The cash distribution is payable on August 14,

Fjords Processing Bags Johan Sverdrup Contracts

Fjords Processing, headquartered in Norway (Fornebu), has won three contracts for the deliveries of process systems for the Johan Sverdrup development in the North Sea.

Ferries

Passenger Ferry Capsizes in the Philippines, Nearly 40 Dead

MBCA Kim Nirvana, a passenger boat carrying 189 people has capsized in the central Philippines, minutes after leaving port, the Philippine Red Cross and coast guard spokesman Cmdr.

New Monitoring Network for Scottish Ports

Historically, ferry masters operating off the west coast of Scotland would have to sail to a port and on arrival visually assess the weather and tide conditions

Philippine Ferry Sinks, 36 Dead

A ferry carrying 189 passengers and crew capsized off the central Philippines in heavy waves on Thursday, killing at least 36 people but the majority of those on board were rescued,

 
 
Maritime Contracts Maritime Security Maritime Standards Navigation Port Authority Ship Electronics Ship Repair Ship Simulators Shipbuilding / Vessel Construction Sonar
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: 0.2259 sec (4 req/sec)