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Classification DNV on ice

A three-year research project initiated by Det Norske Veritas has led to the development of an ice load monitoring system that provides bridge personnel with real-time information about the actual ice loads on the ship’s hull and reports satellite information about ice as an integrated function of electronic navigation maps. DNV said it was developing technological

solutions to ensure that Arctic operations are safe and environmentally sound. Its ‘Ice Load Monitoring’ project identified critical risks and then worked to find mitigating solutions, the class body said. The project had culminated with the development of a comprehensive decision support tool for transiting ice that has been tested over the last two winter seasons onboard the Norwegian coast guard vessel KV Svalbard. The system includes fibre optic sensors that

measure shear strain on the vessel’s hull and electromagnetic equipment which measures the thickness of the ice at the bow. This information is analysed and displayed on the bridge. Additionally, meteorological and satellite data about the ice is integrated into electronic charts allowing for optimum route selection. DNV said the project was the first to monitor

actual ice loads in real time at the bridge as a part of a decision support system. The system is ready to be installed for both newbuildings and ships in operation. “Based on the success of the Ice Load Monitoring

project and a thorough understanding of the risks associated with Arctic operations, our conclusion is that technology will not be a showstopper for conducting safe, well-planned ship operations in

Arctic waters,” said Morten Mejlænder-Larsen, program director for Arctic shipping within DNV Maritime. “Our goal is to maintain high competence levels

and updated rules and notations so that DNV is able to provide owners, yards and oil majors with the support they need to safeguard their cold climate activities,” he added. The experience from the development and

operation of the Ice Load Monitoring system will be implemented in a new DNV Notation. The Ice Load Monitoring project was

supported by the Norwegian Research Council and other partners were Teekay, StatoilHydro, Light Structures, The Norwegian Meteorological Institute, C-map/Jeppesen and the Norwegian Coastguard.

Design Wärtsilä in design

first Conan Wu Associates has secured its first design order since coming under the ownership of Wärtsilä Corp, in September 2008. CWA has been contracted to undertake the

design and propulsion system for Taiwan’s Jong Shyn Shipbuilding for a 6500dwt product chemical tanker. Due delivery in 2011, the ship will be owned by CPC Corporation (CPC), the Taiwanese state-owned oil company. In addition to the design, Wärtsilä will deliver

the entire propulsion system, which is to be based around a 9-cylinder in-line Wärtsilä 32 main engine, gearbox, and a controllable pitch propeller. Wärtsilä’s scope of supply includes other equipment, such as a bow thruster, the

Wärtsilä will deliver the design and propulsion system for the product tanker to be built by Jong Shyn shipyard in Taiwan.


The Naval Architect April 2009

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