MAN Supply Dredger Propellor Blade & Nozzle Upgrade

Press Release
Wednesday, December 05, 2012
MAN Alpha Prop & Nozzle: Photo credit MAN

NCC-owned dredger benefits from recent PrimeServ exchange and modernisation of propeller blades & propeller nozzle – with payback time of just 1½ years
.

MAN Diesel & Turbo’s PrimeServ division in Frederikshavn has, in close cooperation with shipowner and constructional engineering company NCC, performed a propulsion equipment upgrade for the ‘M/V Baltic’, a 900 m³ sand and gravel dredger.



NCC has a fleet of five ships and was, as a starting point, interested in the upgrade of the Baltic. The vessel, which was built in 1983, had – during many years of operation – suffered from propeller and aft-ship vibrations resulting in high noise levels in the accommodation. Eventually the nozzle broke loose from the hull.



In January 2012, the PrimeServ retrofit department in Frederikshavn entered a dialogue with NCC Chief Superintendent, John Jeppesen, on the design of new propeller blades and a new, customised propeller nozzle – with the priority being increased propulsion efficiency and fuel savings. The propeller-blade design chosen was a medium-skew blade profile for ducted operation with a MAN Alpha AHT nozzle – customised with a length/diameter ratio of 0.5. The new nozzle and blades were installed in April 2012 while the vessel was docked at Svendborg Shipyard, Denmark.


The financial aspect of the project has also proved very attractive for NCC with an estimated payback time of 1½ years.

MAN Alpha propellers cover a power range from 4 to 40 MW with fixed pitch and controllable pitch propellers in four and five-bladed executions. The propellers are designed and optimised for a vast number of vessels of different design and applications, from cargo vessels, ferries, cruise ships, offshore vessels, tugs and work boats to fishery and navy vessels.

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

Technology

PlateSmart Ups Security at Port Tampa Bay

Port Tampa Bay, Florida’s largest maritime port and the 16th largest in the United States, has elected to implement PlateSmart's ARES enterprise license plate recognition-based video analytics system.

NSRP Awards $11m for R&D Project Portfolio

The Executive Control Board of the National Shipbuilding Research Program (NSRP) has selected a new round of research and development projects for award, as part

Liquefaction Terminals to Dominate LNG Capital Expenditure

Capital expenditure (Capex) on global LNG facilities is expected to total $259 billion (bn) over the period 2015-2019, with investments expected to be 88% larger

Marine Propulsion

Royal Caribbean to Install Scrubbers on 19 Ships

Royal Caribbean Cruises Ltd. (RCL) will retrofit 19 of its ships with advanced emissions purification (AEP) systems. These systems, also known as scrubbers, will

Wärtsilä to Power LNG-fuelled RoPax Ferry

A new passenger ferry being built for Swedish operator Rederi AB Gotland will be fuelled by liquefied natural gas (LNG) and will feature a Wärtsilä integrated solution.

Keeping to the Schedule in the Pacific Northwest

When a tightly scheduled repower for the Kodiak-based trawler Sea Mac in early December took a very bad turn, Mike Fourtner used his 25 years of fishing experience

Ship Repair & Conversion

Teekay Petrojarl Contracts Damen for FPSO Upgrade

Damen Shiprepair Rotterdam (DSR), part of Damen Shiprepair & Conversion (DSC), has been awarded an EPC contract by Petrojarl I LLC for the upgrade of its FPSO Petrojarl I.

NSRP Awards $11m for R&D Project Portfolio

The Executive Control Board of the National Shipbuilding Research Program (NSRP) has selected a new round of research and development projects for award, as part

Maritime Reporter @ 75: The Daily Cartoon

Maritime Reporter & Engineering News was founded by John J. O'Malley (1905-1980) in 1939, and today ranks as the world's largest audited trade publication in the world serving the maritime industry,

Dredging

Damen Builds Tug, Dredger for Nicaragua

The Nicaraguan port authority Empresa Portuaria Nacional (EPN) is set to take delivery of two newbuilds from Damen Shipyards Group. Damen built both vessels, a

Even 'Small' Vessels are Getting Bigger

The Shipowners’ Club is a mutual provider of P&I insurance that has throughout its 160 year history been dedicated to serving owners of small and specialist ships.

Container Volumes on the Rise in South Carolina

Container volume up 13 percent at South Carolina Ports Authority; Charleston benefiting from federal appropriations    The SC Ports Authority announced another

 
 
Maritime Careers / Shipboard Positions Naval Architecture Navigation Offshore Oil Pipelines Port Authority Ship Electronics Ship Repair Ship Simulators Winch
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: 0.1413 sec (7 req/sec)