Rolls-Royce to design and equip advanced shrimp vessel

SEPTEMBER 2, 2015 — A shrimp stern trawler ordered from shipbuilder Vard Group by a Canadian company is to be designed and equipped by Rolls-Royce. The contract is worth over £6 million to Rolls-Royce.

The Rolls-Royce NVC 374 design vessel will be around 80 m long with an ICE 1A* ice class hull.

It will be equipped with a wide range of Rolls-Royce equipment, including a B33:45 main engine, Promas propulsion, and a power electric system with hybrid shaft generator (HSG). The Rolls-Royce package also includes a tunnel thruster, automation, and winches.

The new vessel will be equipped with fishing winches driven by permanent magnet (PM) engines. PM technology was first launched by Rolls-Royce to drive thrusters more efficiently, silently and with less vibration. The PM winch engine is particularly suited to applications that operate in harsh conditions and combine a need for sensitive control and rapid changes in pull and speed.

Operational efficiency in ice, low emissions, crew comfort, safety and excellent seakeeping capabilities have been the main considerations in the development of the ship design and complete equipment package.

"Our ship design capability and advanced equipment help build the most effective and modern fishing vessels in the world," said Monrad Hide, Rolls-Royce, VP Sales & Contract for Fish and Special Purpose Vessels. "Decades of world-class research, development, and industry knowledge combined with close cooperation with our customers allow us to help them maximize the efficiency of their fishing operations.

"We're delighted to once again be working with Vard on the construction of a sophisticated and highly capable vessel, and to also secure another contract for our new B33:45 engine which is gaining popularity across a range of vessels sine we launched it last year."

The vessel's main engine is the medium-speed Bergen B33:45 from Rolls-Royce. This engine offers a 20% increase in power per cylinder compared to existing engines in the Bergen range. The engines are economical with a specific fuel consumption of 177g /kWh at full load and comply with IMO Tier II and III rules. The Bergen B33:45 is designed to run for 25,000 hours between major maintenance when operating at average loads. Since its market introduction last September the B33:45 has been selected to power five fishing vessels.

The Rolls-Royce Hybrid Shaft Generator (HSG) is an advanced electric power control system for conditioning the electrical power coming from a shaft generator. It allows shaft speed to be reduced whilst maintaining a constant frequency for the electrical supply throughout the ship. This permits a much more flexible use of engine and propeller speed variations to maximize both propeller and engine efficiencies by running them at their design points. This has the benefit of improving fuel efficiency, reducing emissions and also significantly reduces operating costs.

The vessel will feature an onboard factory for the production of a variety of shrimp products. It will have a storage capacity of 2,100 cu.m on specialized decks for palletized cargo and two packaging holds on two decks.

The vessel is to be delivered from Vard's Aukra shipyard in Norway in December 2016.

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