Posted on August 10, 2015
The order is part of Van Oord’s continuous investment program.
The new dredges will have a hopper capacity of approximately 17,000 cu.m, a length of 158 m and a width of 36 m. Each will have accommodations for 38 persons.
They will be equipped with two suction pipes with submerged e-driven dredge pumps, two shore-discharge dredge pumps, six bottom doors and a total installed power of of 23,680 kW.
Each vessel will feature a complete
- MAN 6L48/60CR engines
- RENK gearboxes with PTO
- MAN Alpha CP Propeller systems
- AHT (Alpha High Thrust) Propeller nozzles
- MAN Alpha AT3000 propulsion-control systems.
Special attention was paid to the energy-efficiency of the vessels. The design includes several aspects which result in substantial reductions in fuel consumption and consequently a fall in
The 48/60CR engine type is one of the most successful engine types used in dredging applications. Currently, MAN Diesel & Turbo has 14 of these engines on order for installation aboard cutter- and hopper-dredge newbuildings for customers in
The engines are equipped with key, in-house-developed technologies to optimize their economic and ecological performance, including
- high-efficiency, TCA-type, exhaust-gas turbochargers
- advanced, electronic fuel-injection system
- electronic hardware and software for engine control, monitoring and diagnosis,
- SaCoSone and CoCoS EDS.
The MAN Alpha propeller and aft-ship package supply for each Van Oord vessel consists of a complete twin-screw propeller, nozzle and shaft system, including Alphatronic 3000 propulsion controls.
The CP propellers are driven via shaft lines. Each shaft includes a disc brake and locking system. The ducted propellers are headbox-mounted AHT nozzles. A high degree of service friendliness is ensured since the propeller-hub mechanism can be inspected and dismantled from aft. Additionally, by means of intermediate plates between propeller blade flanges and propeller blades, the propeller blades are underwater replacement friendly – avoiding the need for docking should such a scenario arise.
The twin-screw Alphatronic 3000 system will control the two propulsion lines with engine, reduction gear and