A 236.80 meter long as well as 52.00 meter broad crane ship purchased by Belgium based Jan De Nul Group at the CMHI Haimen Shipyard in China last November (see earlier tale) will certainly have a complete Schottel propulsion bundle. To be called Les Aliz és, it is intended mostly at installment of brand-new generation overseas wind ranches as well as will certainly be outfitted with a crane with a training ability of 5,000 lots as well as was purchased simply 6 months after Jan De Nul’s getting of a gigantic overseas installment jack-up vessel, the Voltaire, at China’s COSCO Shipping Heavy Industry shipyard.
The Schottel bundle being provided for Les Aliz és consists of 4 rudderpropellers, 2 retracting rudderpropellers as well as 2 transverse thrusters, guaranteeing optimum propulsion effectiveness along with optimal ability to move.
“Thanks to her dimensions and her impressive lifting and loading capacities, ‘Les Alizés’ will be able to load out, transport and install multiple units of the largest and heaviest wind turbine foundations. In addition, as a crane vessel that floats, it will be able to install heavier and larger foundations into deeper waters and in more challenging seabed conditions,” states Philippe Hutse, Offshore Director atJan De Nul Group “To meet these demanding tasks, we are pleased that the reliable propulsion solutions from Schottel have been selected.”
OPTIMUM PROPULSION PERFORMANCE
The major propulsion system of the crane vessel contains 4 electrically driven Schottel Rudderpropellers kind SRP 610 FP– each with an input power of 3,000 kW as well as a prop size of 3.30 m– set up at the demanding. With this arrangement, Les Aliz és will certainly accomplish an optimum rate of 13 knots.
To guarantee specific setting maintaining in DP solution, 2 Schottel Retractable Rudderpropellers kind SRP 610 R (3,250 kW each as well as a prop size of 3.00 m) as well as 2 Schottel Transverse Thrusters kind STT 7 FP (2,600 kW each as well as with a prop size of 2.79 m) are set up in the bow of the vessel. The retracting devices are fitted with an 8 ° downwards-tilted prop shaft in order to lower thruster-thruster as well as thruster-hull communications as well as raise propulsion effectiveness.
The passage thrusters are developed to ensure that they can be serviced while the vessel is afloat.
DECREASED DOWNTIME, DECREASED LIFECYCLE PRICES
As component of an extensive drydocking program, “Les Alizés” will certainly have the ability to extend its dry-docking duration from 5 to 7.5 years. To make this feasible, the vessel will certainly be outfitted with a modern problem tracking system fromSchottel It provides automated, 24/7 on-board monitoring of the propulsion devices– also completely offline setting. The irreversible resonance tracking of the system as well as automated fad monitoring of the kept an eye on information permits thruster upkeep based upon their existing problem. This assists to prevent unneeded component exchanges as well as downtimes.
GREATER ENVIRONMENTAL MANAGEMENT
The 236.80 meter long as well as 52.00 meter broad crane vessel will certainly be ecologically certified many thanks to the on-board combination of the very same sophisticated discharge control innovation discovered on all various other low-emission vessels in the Jan De Nul fleet. It will certainly bring a Cleanship NDO7 tag as well as a Green Passport EU tag.
The vessel’s thrusters will certainly be outfitted with the copyrighted as well as DNV-GL type-approved Schottel LEACON securing system. This system makes certain constant leak control of the seals as well as stops water from going into the transmission as well as, of also higher significance, oil from running away right into the salt water. Considered a non-oil-to-water user interface, the system abides by the VGP laws of the UNITED STATE Environmental Protection Agency (EPA) without the requirement to make use of ecologically appropriate lubes (EALs).
The brand-new crane vessel is set up to go into procedure in 2022.