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

GAIL to Offer Sops for Foreign Shipbuilders

GAIL India will offer foreign shipbuilders five years to make liquefied natural gas (LNG) carriers in India, double the time allowed to deliver ships from their home shipyards,

Shipping Gloomiest Since 2009

The shipping industry is the most pessimistic in six years about its prospects as a fleet surplus persists, according to a survey by law firm Norton Rose Fulbright, says a report in Reuters.

South Korea Tops in Shipbuild Orders

South Korean shipbuilders, led by industry leader Hyundai Heavy Industries Co., have secured the largest amount of new orders in the first six months of the year to retain the top slot,

Offshore

Research Vessel Concept a first for Voith

The new fisheries research vessel of the Shanghai Ocean University will be a first for Voith in several respects.   It is the first fisheries research vessel

Ocean Safety’s New Liferaft Facility Opens

Ocean Safety, a specialist in the worldwide supply, distribution, service and hire of marine safety equipment, has opened a new liferaft hire division.   Ocean

ISS Inks Service Pact with Technip

Inchcape Shipping Services (ISS) and Techniphave signed a contract to provide marine agency services and logistics for the Rashid C project in the Middle East. Currently

Passenger Vessels

Carnival Vista Floated Out!

The Carnival Vista has completed its dry dock phase and was recently floated out to a new location at Italy's Fincantieri shipyard, Carnival Cruise Line has announced.

Fund Targets Mols-Linien

The Danish equity fund Polaris makes a tender offer on all shares of the ferry operator Mols-Linien, which sails on routes Odden-Ebeltoft and Odden-Aarhus.    Polaris

Search for Missing after Philippine Ferry Sinks, 38 dead

Divers will search waters in the central Philippines on Friday for 15 people still missing after a ferry carrying 187 passengers and crew sank a day earlier,

Marine Power

Tony Abbott Guarantees Submarine Jobs

Prime Minister Tony Abbott has assured South Australians there will be more submarine jobs here even if he won’t commit to having a new fleet of vessels built there,

Research Vessel Concept a first for Voith

The new fisheries research vessel of the Shanghai Ocean University will be a first for Voith in several respects.   It is the first fisheries research vessel

MTU Powers RSN Navy's Littoral Mission Vessel

MTU to power eight Republic of Singapore Navy’s new patrol vessels. Employees and guests, including senior representatives from the Republic of Singapore Navy (RSN) and Ministry of Defence,

Marine Equipment

Maersk Sells Its Stake in ESVAGT

Danish conglomerate A.P Moller-Maersk said Tuesday two international infrastructure investors have agreed to buy 100% of the Danish company ESVAGT from Maersk Group and ESE-Holding A/S.

APL’s Schedule Reliability Scales Up

APL was the most reliable carrier with a global on-time performance of 85.5% in May 2015, according to the latest Global Liner Performance Report by SeaIntel Maritime Analysis.

Tideland Introduced New Navigation Aids at Seawork

Tideland Signal Corporation (Tideland) introduced a number of new innovative aids to navigation (AtoN) products at Seawork 2015, including SB-1800, the newest member

Vessels

Impact of Financial Crisis on Greek Shipping

Though international analysts like Morgan Stanley said that the Greek crisis will not have a direct impact on shipping companies, Greek shipping companies listed on U.

APL’s Schedule Reliability Scales Up

APL was the most reliable carrier with a global on-time performance of 85.5% in May 2015, according to the latest Global Liner Performance Report by SeaIntel Maritime Analysis.

Haiti’s Port Lafito Officially Opens

GB Group inaugurated their Port Lafito, a world-class modern container port in Haiti. They informed that the port is now open and operational. Port Lafito

Ferries

Egyptian Vessel Sinks

Taba, an Egyptian ferry, carrying passengers, cargo and trucks, sank in the Red Sea early on Sunday, according to state-owned news agency MENA.   The 6,600-gt

Fund Targets Mols-Linien

The Danish equity fund Polaris makes a tender offer on all shares of the ferry operator Mols-Linien, which sails on routes Odden-Ebeltoft and Odden-Aarhus.    Polaris

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.

 
 
Maritime Careers / Shipboard Positions Maritime Security Naval Architecture Navigation Offshore Oil Pod Propulsion Port Authority Salvage 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: 0.2404 sec (4 req/sec)