MAN Diesel Expands CP Propeller Portfolio

Monday, October 12, 2009
Photo courtesy MAN Diesel

In response to the market demand for very large CP propellers up to and beyond 30,000 kW and with diameters over eight meters, MAN Diesel is expanding its propeller portfolio to add two new, propeller hub-sizes – VBS2080 and VBS2240 (2080 mm and 2240 mm hub diameters respectively).

These propeller sizes are typically destined for ConRo vessels, shuttle tankers and special vessels with high ice classes, and powered by MAN B&W two-stroke MC-C or ME-C main engines that directly drive a CP propeller.

As the potential for improving propeller propulsive efficiency aft-ship optimization is far greater than that for improving diesel-engine fuel-oil economy, MAN Diesel has devoted more resources to its CP propeller program and associated aft-ship systems in recent years, with the aim of improving total propulsive efficiency by 8-10% within the next three to five years.

Backed up by industry demand, MAN Diesel focuses on low environmental impact and optimal fuel-oil consumption. While these two factors can play against each other in diesel-engine design, they go hand-in-hand with propellers since an increase in propeller efficiency results in lower propulsion power and fewer emissions.

Where the correct approach to the vessel-design process is taken and MAN Diesel are involved at an early stage in propeller and aft-ship optimization, propeller efficiency improvements and bollard-pull increases of (respectively) 5-7% and 8-12% can be attained compared to a standard, conventional, CP propeller solution. Such solutions offer even greater potential in retrofit projects where fuel-consumption reductions of up to 12.5% have been reported.

The new Alpha propeller hubs, like the smaller, well-proven ones, focus on reliability, low wear-rates and service-friendliness as they are serviceable from the aft-end, with no dismantling required.

Alpha is also the first CP market series where both the stern-tube system and propeller hub can operate on biodegradable oil, eliminating any risk to the environment and guaranteeing internal propeller lubrication, even in the event of seawater contamination.


Maritime Today

The Maritime Industry's original and most viewed E-News Service

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

People & Company News

Henriksen Unveils Strongest SOLAS Boat Lifting Hook

H Henriksen of Norway has received SOLAS certification for a new off-load single-point boat lifting hook capable of holding up to 22.5-tonnes. The quick release

S&P Raises Steamship Mutual outlook to Positive

Poor’s has revised its outlook on Steamship Mutual to Positive from Stable. The A- financial strength rating has been reaffirmed. In their announcement Standard

SSA Welcomes Decision To Extend BEO

The Singapore Shipping Association (SSA) has welcomed the decision by Singapore’s Minister for Trade and Industry to extend the Competition (Block Exemption

Marine Propulsion

Deltamarin to Designs First LNG Handysize Bulk Carriers

Deltamarin Ltd proudly announces that it has signed a contract to design the world’s first LNG handysize bulk carriers, which will point the way towards greener shipping of commodities.

Rolls-Royce to Exhibit Power Offerings at WorkBoat

Rolls-Royce will showcase its latest marine power innovations, including several MTU commercial marine products and systems, at the International Workboat Show 2015, December 1-3 in New Orleans.

Royston Appoints New US Distributor

Diesel power engineering specialist Royston has appoint a new U.S.-based distributor, citing growing interest in its advanced Enginei marine fuel management and monitoring systems.

Maritime Careers / Shipboard Positions Maritime Contracts Maritime Security Maritime Standards Navigation Pipelines Ship Electronics Ship Repair Ship Simulators 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: 0.0703 sec (14 req/sec)