Artemis is the second self propelled cutter suction dredger (CSD) built for Van Oord, a company based in the Netherlands.
The vessel’s naming and launch ceremony was held at the IHC Dredgers shipyard in Kinderdijk, the Netherlands, in June 2012. It was successfully commissioned in April 2013.
Artemis is a sister ship to Athena dredger which was delivered in late 2011. The Athena is currently being used at the Ichthys LNG project in Darwin, Australia.
IHC Merwede signed a contract with Van Oord for the design, construction and delivery of the vessel in December 2010.
The ship is one of the largest cutter suction dredgers ever built in the Netherlands for a Dutch dredging company. It is one of the most modern and powerful self-propelled cutter suction dredgers in the world.
Van Oord currently operates 23 cutter suction dredgers in its fleet, including Artemis, Athena, Castor, Hector, HAM 218, HAM 217, Hercules, Zeeland II, Haarlem, Nuo xi Hao, Sliedrecht 34, Zeeland/Riekerpolder, HAM 219, Merwede, Calabar River, Aegir, HAM 253, HAM 250, Schelde, Laurum, Ajax, Kruipnix and Gooiboog.
Details of the Artemis dredger
The ship, named after Artemis, the Greek goddess of the hunt, is being used specially for dredging work on hard ground at the Liverpool2 Container Terminal Quay Wall. The vessel is expected to remove 588,000 cubic metres of underlying rock, sand and gravels, which will be reused in the infill operations behind the quay wall.
The cutter suction dredger was used with Multicat (MuC) Cronus at the Wilhelmina Quay in the Port of Rotterdam to deepen the harbour basin and dredge a trench in the access channel to the harbour. Approximately 500,000m³ of hard rock and clay was dredged from the basin.
Design of Van Oord’s MV Artemis CSD
The ship has an overall length of approximately 131.5m and can accommodate 50 people. The beam and draught of the ship are 27.8m and 6.6m respectively. The moulded depth is nine metres.
The 9,547GT vessel can dredge to a maximum depth of 32.4m using a suction pipe of 1,000mm diameter.
The ship features a spud carriage with hydraulic buffering, which enables the ship to work for longer periods in dreadful weather. The deckhouse of the ship is mounted on air springs to reduce noise and vibrations in the accommodation section. The ship is highly robust and can operate in harsh conditions.
The large steel teethed rotating cutting head on the front of the vessel loosens the soil from the harbour. The loosened soil gets sucked up by a powerful centrifugal pump and is discharged further with the help of a steel pipe. The spud ensures the ship can remain stable.
Artemis dredger propulsion system and performance
Artemis can run at a maximum cutter power of 7,100kW with a sailing speed of 12kts. Its propulsion system includes three Wärtsilä 6L46F engines and Wärtsilä fixed pitch propellers (FPPs).
Konutherm provided efficient thermal oil systems for the dredger to achieve optimal heat recovery.
The dredger is installed with three exhaust gas heaters and a fired heater.
Zenitel Marine provided its VINGTOR ACM solutions for communications and signalling aboard the ship.
Total installed power of the ship is 24,650kW. The inboard dredge pumps and submerged dredge pumps are rated at 5,000kW each.
Dockwise Vanguard is a semi-submersible heavy transport vessel (SSHTV) built by Hyundai Heavy Industries (HHI) in Ulsan for the Dutch shipping company Dockwise.
Aegir is a deepwater construction vessel (DCV) scheduled to start operations in the fourth quarter of 2013.