French port opts for hybrid LNG dredger

The dredger will be the first new dual-fuel construction of its type in France Photo: Barillec Marine The dredger will be the first new dual-fuel construction of its type in France Photo: Barillec Marine

Barillec Marine will supply LNG diesel-electric propulsion and the water injection dredging system for a new LNG hybrid dredger for the Port of Bordeaux.

When completed, the dredger, ordered by Dragages Ports and Bordeaux Port Atlantique, will be the first new dual-fuel construction in France aside from LNG tankers.

Barillec said it is pursuing R&D in order to offer new electric and hybrid propulsion concepts and energy storage solutions in both maritime and river transport in order to achieve efficiency gains, reduce fuel consumption and polluting gas emissions.

French first

For Barillec Marine, this contract is a recognition of its expertise in the design and supply of innovative applications, complete energy production systems, electric propulsion systems and hybrid systems for vessel types.

This contract, which represents close to 7,000 hours of work, involves the design and supply of the main panel for hybrid energy production, of the main and auxiliary dual-fuel/electric propulsion and an innovative energy conversion system.

The two main propulsion assemblies will each include an electric motor with nominal power of 1,200kW at 1,600rpm. The Bow thruster auxiliary propulsion system will comprise an electric motor with nominal power of 400kW at 1,500rpm.

This hybrid dual-fuel system combined with the complete Barillec Marine offer has been designed to be particularly energy efficient. The frequency converters will help optimise the operating parameters of the main machines, azimuth thrusters and bow thruster.

Efficiency will be bolstered by variable speed and a dynamic ship positioning system. In addition, a Power Management System (PMS) will further improve the ship's energy performance.



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