Page 33: of Maritime Reporter Magazine (September 2003)

Marine Propulsion Annual

Trials Begin on Unique Maneuvering Aid

The SEA-AHED — the merciful acronym for Simulation Env ironment and Advisory System for On-board Help, and

Estimation of Maneuvering Performance During Design — was scheduled to be installed onboard P&O Princess

Cruises' Golden Princess for trial this summer. The trial is a three year project funded by the European Commission

Competitive and Sustainable Growth Program, which unfortunately does not have a snappy acronym. The purpose of SEA-AHED is:to allow a ship's maneuvering characteristics to be determined very early in the design process: to develop a nav aid displaying, in real time, a vessel's current position together with a future position, predicted or sim- ulated.. and to develop a maneuvering training aid which allows crews to replay previous maneuvers.

For additional information, contact Rory Dovle at BMT. [email protected]

Centa Leads the Way with Centax CX-L

Centa Corp., Westmont, III. has seen considerable growth in the use of its

CENTAX CX-L series torsional cou- plings for marine propulsion drivelines.

The company's CX-L coupling uses a set of specially designed link arms between the rubber tor- s i o n a 1 element(s) and the output hub that allows for large axial and angular misalignments, thus making it a unique solution for applications where the engines and/or transmissions are on soft mounts or for applications where significant hull flex is present.

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Siemens Promotes

Fuel Cell Power

Siemens Industrial Solutions and

Services Group (I&S) received an order from HDW Fuel Cell Systems GmbH (HFCS) to supply a transportable 160 kW fuel cell system for emission-free power generation on ships. The system is housed in a container, which allows it to be brought onboard for demonstra- tions and tests, and to be seamlessly connected to the ship's power supply. It is scheduled for delivery in spring 2005.

Siemens will install the complete system in a 20-ft. transport container so that it can be made available for potential users for testing. In addition to four fuel cell modules manufactured by Siemens with a gross output of 40 kW each, the con- tainer accommodates all the process engineering and electrical engineering systems needed for operation, control and monitoring, as well as a converter, which adapts the electrical energy gen- erated so that it can be fed into the ship's power system.

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Unique RoPax Ferries

Mitsubishi Heavy Industries was tapped by Shin Nihonkai Ferry Co. to build a pair of large, high-speed RoPax ferries, innovative concept vessels with a single-shaft system that is the combi- nation of contra rotating propellers (CRPs) and a pod drive unit. The 17,000-gtships are due for delivery next

June.

They will measure 736.5 x 85 ft. (224.5 x 26 m) and will have a maxi- mum speed of 31.5 knots. They will be outfitted with a steerable Azipod unit from ABB Azipod, installed in a contra- rotating mode aft of the mechanically

September 2003 driven main propeller. The intent: the power of a twin screw installa- tion with far higher efficiency.

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Smart Pneumatic Level

Sensor with Generic 4-20mA Output

The Bubbler is an electro-pneumatic level trans- mitter that allows remote level measurement using a 4-20mA analog output. The lack of air pressure poses no operational problems, due to an auto- matic one-way valve which closes as soon as the pressure drops below 1 bar, this prevents back flow in the bubbling line towards the transmitter.

Over pressure is also protected against by an automatic one-way valve. • It's the size of a grapefruit • Explosion proof housing • Accuracy .3% full scale • Automatic over-pressure valve • Automatic stop valve for air failure • Automatic cleaning of bubbling line • Connection for pressurized tanks • 2 pair 24 VDC and 4-20mA cable «Top or side mount

Many Options » Call today

W for more

HML information!

ELECTRONIC MARINE

SYSTEMS, INC. 800 Ferndale Place

Rahway, NJ 07065 732.382.4344 732.388.5111 fax [email protected] e-mail http://www.emsmarcon.com

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