ABB Azipod Efficiency Improved Again

press release
Wednesday, November 23, 2011

Continuous effort to improve Azipod energy efficiency.


ABB, a power and automation technology group, has announced that recent modifications to its Azipod propulsion unit fr ame design have seen hydrodynamic efficiency improved by more than two percent. The modifications include a newly optimized Azipod fin shape and a new pod cap structure, called Xtail. The revised fin structure receives water flow from the propeller at a new, less acute angle, and its new curved design redirects the flow more efficiently. The unit’s new X-tail, installed for the pod cap structure, straightens water flow on ejection from the Azipod propulsor, minimizing water swirling.

 

Royal Caribbean International’s Radiance of the Seas was the first cruise ships to benefit from the new fin shape and X-tail. The modifications to Azipod were completed during her drydock in May 2011. Her sailings from May to September witnessed the benefits when compared to a sister vessel and her previous operational portfolio: more than 2 percent in hydrodynamic efficiency improvement was achieved.

 

Based on the positive result from the test, ABB will now include its new features in new Azipod XO units and provide refitted services to existing vessels equipped with older Azipod VO and XO units. At the beginning of this year ABB together with Eniram introduced Azipod Dynamic Optimizer (ADO), a software tool which optimizes the Azipod toe angle. The tool has further improved unit efficiency and initial results from the trial installation on Holland America Line’s Noordam indicate that 1.5 percent savings may be achievable on this vessel.

 

“Azipod propulsion has been in the market about 20 years and a lot of hydrodynamic improvements have been made during that time. However, from the hydrodynamic point of view the system still has a lot of potential. More new ideas will be studied, tested and applied to improve ship fuel efficiency” said Tomi Veikonheimo, chief hydrodynamist at ABB Marine. When the Azipod propulsion system was first introduced to the cruise market in 1990s, around an
eight per cent rise in efficiency was recorded compared to existing ships, in terms of shaft line efficiency. After that, step by step improvements were made to the Azipod shape, resulting in about another seven percent efficiency improvement. Two years ago, when ‘next generation’ Azipod - Azipod XO units were launched, another two per cent improvement was achieved. Thus combining this to the recent improvements, Azipod hydrodynamic efficiency has totally been improved by more than 12 percent compared to the first cruise vessel application.

 

“The fuel efficiency improvements measured on Radiance of the Seas are welcomed reprieve in today’s higher fuel prices” said Anders Aasen, Associate Vice President of Technical Services for Royal Caribbean International and Azamara Cruises. “Any improvements we can make on fuel efficiency will serve us well for future operational costs.”

 

“Azipod is one of ABB’s most recognized products, denoting the company’s energy efficient solutions for marine applications and offering up to 20 percent in energy savings. However, the pursuit of better efficiency, maneuverability, safety and crew comfort has never ceased,” says Heikki Soljama, Global Head of ABB’s Business Unit Marine and Cranes. To date, over 100 vessels have been equipped with Azipod propulsion units and more than 240 Azipod units have been delivered or are on order, accumulating about seven million reliable operating hours in demanding marine applications such as icebreakers, luxury cruise ships, research vessels, offshore supply vessels, drilling rigs, ferries and mega yachts.
 

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

People & Company News

CMA-CGM to Call Port of Baltimore

International container shipping company CMA-CGM of France announced that it will begin service within the next couple of weeks to the Helen Delich Bentley Port of Baltimore.

Hapag-Lloyd Expands Feeder Network in Scandinavia

Baltic Express Service (BAX) to include Oslo / Two weekly departures from Gothenburg and Helsingborg in SDX and GTE / Connection via Hamburg and Bremerhaven to

Mercury Marine Begins HQ Expansion

Mercury Marine announces 45,000 square foot EDP parts expansion to Fond du Lac global headquarters   Mercury Marine will add a 45,000 square foot expansion to

Technology

Construction Starts on Crowley’s 2nd LNG ConRo Ship

Construction begins on Crowley’s second Commitment Class, LNG-powered ConRo ship for use in the Puerto Rico trade   Shipbuilder VT Halter Marine, Inc. has officially

UKHO ‘Living with ECDIS’ Seminars at Nor-Shipping

Seminar to include information on updated IHO ENC Standards   The United Kingdom Hydrographic Office (UKHO) has announced the details of its free-to-attend ECDIS Seminars at Nor-Shipping,

New Launches, Demonstrations Set for Seawork

Europe’s commercial marine and workboat exhibition held in a working port, Seawork International, has released its plans for demonstrations, launches and conferences.

Marine Propulsion

Shell Offers Smooth Transition to ECAs

Shipowners switching to low sulphur content fuels in line with their obligations in Emissions Control Areas (ECAs) have demanded confidence in the cylinder oils

Construction Starts on Crowley’s 2nd LNG ConRo Ship

Construction begins on Crowley’s second Commitment Class, LNG-powered ConRo ship for use in the Puerto Rico trade   Shipbuilder VT Halter Marine, Inc. has officially

Mercury Marine Begins HQ Expansion

Mercury Marine announces 45,000 square foot EDP parts expansion to Fond du Lac global headquarters   Mercury Marine will add a 45,000 square foot expansion to

Navigation

UKHO ‘Living with ECDIS’ Seminars at Nor-Shipping

Seminar to include information on updated IHO ENC Standards   The United Kingdom Hydrographic Office (UKHO) has announced the details of its free-to-attend ECDIS Seminars at Nor-Shipping,

Tankers Switch to Digital Navigation

In July 2015 international regulation requires all tankers to be compliant with IMO rules for the use of ECDIS and ENCs. As many shipping companies start planning

First Damen Twin Axe for Offshore O&G

To develop its large fleet, Groen Offshore, Guard & Support has selected the first Damen Twin Axe Fast Crew Supplier 2610 to be customised with Offshore Oil & Gas standby capabilities.

Environmental

Shell Offers Smooth Transition to ECAs

Shipowners switching to low sulphur content fuels in line with their obligations in Emissions Control Areas (ECAs) have demanded confidence in the cylinder oils

US Forecaster Predicts Below-average Atlantic Hurricane Season

The Atlantic Ocean will see a below-average number of hurricanes this season due to cooler seas and a strong El Niño effect, the U.S. government weather forecaster announced on Wednesday.

SeaCURE BWTS Earns 2nd US Patent

Evoqua Water Technologies has been awarded a second United States patent on its technical solution for treating ballast water.  This latest patent was granted by

Marine Equipment

UKHO ‘Living with ECDIS’ Seminars at Nor-Shipping

Seminar to include information on updated IHO ENC Standards   The United Kingdom Hydrographic Office (UKHO) has announced the details of its free-to-attend ECDIS Seminars at Nor-Shipping,

Scandlines Orders Ferry Battery System

Corvus Energy announces the signing of marine Energy Storage System (ESS) contract with Scandlines Denmark ApS; world’s largest battery hybrid electric fleet orders additional 2.

New Launches, Demonstrations Set for Seawork

Europe’s commercial marine and workboat exhibition held in a working port, Seawork International, has released its plans for demonstrations, launches and conferences.

Maritime Safety

NSA Chief Urges 'Safe' Internet Under Equivalent of Law of the Sea

The U.S. National Security Agency chief called on Wednesday for an "open, reliable and safe" Internet governed by international rules akin to the Law of the Sea,

US Counter-piracyTeam Earns Panama's Approval

Meridian’s counter-piracy teams may now operate aboard vessels flying the Panama flag, following a vetting process that validated the quality of the US-based private maritime security company.

Tankers Switch to Digital Navigation

In July 2015 international regulation requires all tankers to be compliant with IMO rules for the use of ECDIS and ENCs. As many shipping companies start planning

 
 
Maritime Careers / Shipboard Positions Maritime Security Maritime Standards Naval Architecture Navigation Offshore Oil Port Authority Salvage Ship Repair Ship Simulators
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: 0.3835 sec (3 req/sec)