MHI Installs MALS (Mitsubishi Air Lubrication System)

press release
Wednesday, October 03, 2012
MALS Concept Sketch: Air bubbles covering the vessel's bottom, like a carpet of air.

For First Time and Verifies Over 5% Fuel Efficiency Improvement - Sights On Expanded System Applications to High-speed, Slender Hull-form Ships.

 

Mitsubishi Heavy Industries, Ltd. (MHI) has installed its innovative "Mitsubishi Air Lubrication System" (MALS) for the first time on a ferry - a ship with a slender hull form* - and confirmed over 5% improvement in fuel consumption. MALS is MHI's proprietary technology that reduces frictional resistance between the ship hull and seawater by introducing a layer of air bubbles blown from the ship's bottom. The verification experiment was conducted at sea using the FERRY NAMINOUE, a ship owned by Japan's A-LINE Ferry Co., Ltd. that went into service starting September 27. The experiment results have verified that MALS is also applicable to high-speed, slender ships as an effective way to reduce fuel consumption and reduce environmental burdens, further extending the range of ship types for which MALS is suited.
 

The FERRY NAMINOUE is an 8,072 gross tonnage (GT) ship 145 meters (m) in length, 24m wide, and with a designed draft of 6.2m. It was built at MHI's Shimonoseki Shipyard & Machinery Works and plies the Kagoshima-Amami-Okinawa route in southern Japan.

 

MHI considers development of energy-saving technology for ships to be one of its most important tasks, in order to combat global warming in the area of marine transportation. In 2010 the company installed MALS for the first time on two module carriers operated by NYK-Hinode Line, Ltd. - first the YAMATAI, then the YAMATO - and confirmed significant energy savings. To expand MALS' application range, MHI next proceeded to develop a system applicable to high-speed, slender ships, which have a comparatively smaller flat area at the ship bottom and are thereby considered technologically difficult to apply MALS effectively. Installation of the system on the FERRY NAMINOUE was realized thanks to the full cooperation extended by A-LINE Ferry Co., Ltd.

 

During the speed trial test at sea, fuel consumption improvement (reduction in propulsion power required) exceeding 5% was confirmed even with waves as high as 2.5-3m. These results verified reduction of frictional resistance by MALS even when installed on high-speed, slender ships. The level of fuel consumption reduction suffices to offset the fuel consumption increase such a ship's marine diesel engine requires to comply with tightened controls on NOx (nitrogen oxide) emissions. As the air bubbles function as a cushion, noise and vibration are also reduced, enabling improvements in passenger comfort.

 

Going forward MHI will continue to monitor the operational conditions of the FERRY NAMINOUE and verify MALS' effectiveness in both energy saving and CO2 reduction. The company expects that as a system friendly to the environment MALS will play a solid role in protecting the beautiful nature of the Amami Islands and Okinawa.

 

The verification experiment using the FERRY NAMINOUE was supported by ClassNK (Nippon Kaiji Kyokai) as a joint research project.

 

Note: A slender hull-form ship refers to a ship with relatively small block coefficient (Cb). Cb = volume of displacement divided by the volume of the block defined by a ship's length x breadth x draft. Ships with a comparatively large Cb value are known as "full hull-form ships."

Maritime Today


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

Maritime Reporter July 2016 Digital Edition
FREE Maritime Reporter Subscription
Latest Maritime News    rss feeds

Technology

MSC Invests in TRAXENS Container Monitoring

MSC Mediterranean Shipping Company has reached an agreement to back French start-up TRAXENS, a developer of cargo logistics solutions and creator of a container monitoring and coordination system.

B&G Software Upgrade for Zeus2 and Vulcan Chartplotter

B&G, the world’s leading sailing navigation and instrument specialist has upgraded its latest software for the full range of Zeus2 and Vulcan chartplotters. The

Ithaca’s FPF-1 platform to be moved to Stella field

Ithaca Energy Inc. reports that the "FPF-1" floating production facility has completed the required inclination test as planned and departed the Remontowa shipyard in Gdansk, Poland.

Shipbuilding

New Ferry MV Woods Hole Delivered

The newly built ferry M/V Woods Hole has been delivered to serve Woods Hole, Martha’s Vineyard and Nantucket.   Built by Conrad Industries of Morgan City, La.

Cargo Barge Launched for Alaska Marine Lines

Alaska Marine Lines celebrated the launch of its newest barge, Skagway Provider, at a ceremony July 7 at Gunderson Marine in Portland, Ore. where the vessel was constructed.

Romica Manufacturer Secures DNV GL Approval

U.K. winch maker Romica said it is to “redouble its exports drive” after its Romania-based manufacturing partner successfully acquired accreditation with DNV GL.

Ship Repair & Conversion

Quick Propeller Repair Prevents Drydocking

Recently a team of Hydrex diver/technicians performed a propeller blade cropping on a 190-meter container bulker berthed in Hamburg. Two parts of the tip of one

NASSCO Bags USS Oak Hill Modification Award

General Dynamics NASSCO-Norfolk was awarded a $42 million cost-plus-award-fee modification to a previously awarded contract for the repair and alteration for the USS Oak Hill (LSD-51).

IRClass First to Certify Indian Recycling Yards per EU Standard

IRClass is amongst the first organizations in the world to certify ship recycling yards according to EU standards as an ‘Independent Verifier’. IRClass Systems and Solutions Pvt.

Environmental

Two DNV GL Approvals for GTT Training Software

GTT Training, a GTT subsidiary dedicated to training liquefied natural gas (LNG) professionals and to the development of associated simulation tools, has obtained

How to Avoid Claims for Self-cooking Cargo

North P&I Club has advised its members to be extra vigilant during loading and transport of soya beans to ensure they do not get blamed for cargoes that start ‘cooking’ at sea.

China sets up South China Sea environment protection fund

China has set up a 15 million yuan ($2.25 million) environmental protection fund for the South China Sea having already spent double that in the past four years,

Passenger Vessels

New Ferry MV Woods Hole Delivered

The newly built ferry M/V Woods Hole has been delivered to serve Woods Hole, Martha’s Vineyard and Nantucket.   Built by Conrad Industries of Morgan City, La.

Passenger Vessel Runs Aground off Hawaii

The 65-foot commercial passenger vessel Spirit of Kona ran aground on the island of Hawaii, Sunday, the U.S. Coast Guard reported.   Coast Guard Sector Honolulu

Wärtsilä Environmental Efficiency for Hybrid UK Ferry

A new ferry being built at the Cemre shipyard in Turkey for UK operator Wightlink will feature a comprehensive range of modern Wärtsilä equipment and systems to

Marine Power

Volvo Penta Names Brown Commercial Marine Sales Director

Dave Brown has joined Volvo Penta of the Americas as director of commercial marine sales.   In this new position, Brown will provide strategic and administrative

Quick Propeller Repair Prevents Drydocking

Recently a team of Hydrex diver/technicians performed a propeller blade cropping on a 190-meter container bulker berthed in Hamburg. Two parts of the tip of one

Wärtsilä Environmental Efficiency for Hybrid UK Ferry

A new ferry being built at the Cemre shipyard in Turkey for UK operator Wightlink will feature a comprehensive range of modern Wärtsilä equipment and systems to

Ferries

New Ferry MV Woods Hole Delivered

The newly built ferry M/V Woods Hole has been delivered to serve Woods Hole, Martha’s Vineyard and Nantucket.   Built by Conrad Industries of Morgan City, La.

Wärtsilä Environmental Efficiency for Hybrid UK Ferry

A new ferry being built at the Cemre shipyard in Turkey for UK operator Wightlink will feature a comprehensive range of modern Wärtsilä equipment and systems to

Finland's Wartsila Sticks to 2016 Outlook

Finnish ship engine and power plant maker Wartsila reported weaker-than-expected quarterly profit and order intake on Wednesday. Wartsila cited tight competition

 
 
Maritime Careers / Shipboard Positions Maritime Security Naval Architecture Navigation Pipelines Salvage Ship Electronics Ship Repair Sonar 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: 0.1953 sec (5 req/sec)