Damen signs contract for green tugs
Damen's revolutionary ASD 3212 Green Tug reduces CO2, SOx and NOx emissions by 30%
Iskes Towage & Salvage has ordered two harbour tugs from Damen Shipyards Hardinxveld. The revolutionary ASD 3212 Green Tug, designed by Iskes and Offshore Ship designers, reduces CO2, SOx and NOx emissions by 30%.
The first contract was signed at Europort 2011. The tugs will be delivered by mid-2013.
Triggered by the commitment of the ports of Rotterdam and Amsterdam to the World Ports Climate Initiative, Iskes teamed up with Offshore Ship Designers to develop a tug with 30% emission reduction. Currently, the Green Tug Project is in the final, detailed design stage. More details will be available at Seawork.
The Green Tug’s azimuth thrusters, bow thrusters and winches use diesel-electric propulsion. In order to reduce emissions while mobilising to a job, the tug will sail on battery power. The energy management system ensures that the master of the tug always gets the power he needs, regardless of whether the power comes from batteries or from one or more diesel generators. When sailing at cruising speed, only one generator is used, cutting down on fuel consumption and maintenance. The vessel will have 70 t bollard pull and is equipped with a double drum, creating an independently controlled forward winch system. The concept is to pay out two tow-wires at the same time and control each wire independently - very practical when manoeuvring in narrow spaces.
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