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.

(www.mandiesel.com)

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

People & Company News

Aberdeen Harbour Installs Siklu Security Network

Aberdeen Harbour has extended its security solutions coverage using high-capacity backhaul from Siklu, the market leader in millimeter wave backhaul informs the Israel-based tech firm.

Transocean's Chairman Designate 2015 Named

Transocean Ltd. informs that at its recent Extraordinary General Meeting Merrill A. "Pete" Miller, Jr. was nominated as a director and the Board intends to designate him as vice-chairman,

Chariot Oil & Gas 1H 2014 Interim Results

Chariot Oil & Gas Announce Interim Results for 1H 2014 Chariot Oil & Gas Limited, the Atlantic margins focused oil and gas exploration company, today announces

Marine Propulsion

ClassNK Update Design Support Tool for EEDI Verification

Minimum propulsion power evaluation software extended to calculate added resistance in irregular waves Classification society ClassNK has released the latest

Maersk CEO Appointed to UN Advisory

Morten Engelstoft, CEO of Services and Other Shipping, said CO2 issues will be on his agenda as a newly appointed member of a UN High-level Advisory Group for Sustainable Transport.

MN 100: ZF Marine Propulsion Systems

15351 SW 29th St. Ste 300 Miramar, FL 33027 Telephone: 786 417 3496 E-mail: edward.schwarz@zf.com Website: www.zfmarinecc.com CEO/President: Wolfgang Schmid Number

 
 
Maritime Careers / Shipboard Positions Maritime Contracts Maritime Security Naval Architecture Pipelines Pod Propulsion Port Authority Ship Electronics Shipbuilding / Vessel Construction Sonar
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: 0.1046 sec (10 req/sec)