Veerhaven X - Orka Scheepswerf Gebroeders Kooiman Delivers Powerful New Pusher Tug
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©REPRINTED FROM HSB INTERNATIONAL Photo by Flying Focus-Bussum,The Netherlands VEERHAVEN X - ORKA SCHEEPSWERF GEBROEDERS KOOIMAN DELIVERS POWERFUL NEW PUSHER TUG Builders: Shipyard Gebr. Kooiman BV, Zwijndrecht,The Netherlands Owners:ThyssenKrupp Veerhaven B.V., Brielle,The Netherlands The push boat Veerhaven X ‘Orka’ was named waterway route Rotterdam Europoort to and Principal particulars by Mrs Ursula Göbel, spouse of Dr. Göbel, from Duisburg.The busy, shallow and winding Length o.a. .40.00 m chairman of the board of commissioners of river, in combination with the tight voyage Breadth o.a. .15.00 m ThyssenKrupp Veerhaven B.V. The boat was schedule demand a vessel with good manoeu- Depth mld. .2.75 m Draught . .1.74 m (half load) delivered twelve months after keel laying.The vrability and considerable propulsion power. Propulsion power . .3 x 1,360 kW Veerhaven X ‘Orka’ is the first push boat built This resulted for the ‘Veerhaven X’ in a triple- Bowthrusters . .2 x 400 kW by Scheepswerf Gebr. Kooiman BV and num- screw propulsion installation with three noz- ber nine for ThyssenKrupp Veerhaven BV. zles and three fishtail rudders. In order to Accommodation Trials on the 24th of May 2007 proved the keep optimum manoeuvrability when navigat- The accommodation is situated in the two- push boat to be a quality vessel, sailing the ing astern with six barges attached, the vessel tier superstructure and comprises nine cabins Rhine in power, speed, manoeuvrability, is equipped with two bow thruster units. for the crew, including an owner’s cabin, each silence and smooth operation. with separate sanitary facilities. Furthermore, General Characteristics a fitness room, a messroom with lounge facil- Design The main characteristics of the pushboat ities, the galley,stores and a change room have The ‘Veerhaven X’ is designed to navigate ‘Veerhaven X ‘ built under yard number 172 been provided.The living quarters, the engine with a total of six push barges on the inland are: control room and the wheelhouse are fully HSB INTERNATIONAL JUNE 2007 - 7 of the overall operational costs.Therefore the performances of the push boats of ThyssenKrupp Veerhaven BV are monitored and tracked, using a sophisticated system “Tempomaat” installed by Techno Fysica.The resistance characteristics of the river from Rotterdam to Duisburg have been processed in a data base as well as the engine character- istics. Position and speed over ground input is carried out by a GPS. During the voyage the measured engine data are checked with the engine characteristics and the river charac- teristic. After departure the system is switched on, the computer now continuously calculates the optimum speed for a pre-set time of arrival and adjusts the throttles accordingly in order to optimise fuel con- sumption. This permits the officer of the watch to fully concentrate on navigation. If necessary for nautical reasons the system can manually be overruled. The system can be compared with a cruise control on cars, except that in this case the target speed is not set by the driver but calculated on arrival time and minimum fuel consumption. A visual display unit (VDU) provides the offi- To improve the view forward, the bridge windows are without mullions cer of the watch with up-to-date information on speed, main engine revolutions and fuel airconditioned. In order to obtain the strict munication and navigational aids include: two consumption. Data are also stored on floppy noise levels required by ThyssenKrupp raster scan radars, radar chart overlay system, disks and sent to the head office where they Veerhaven BV, the accommodation has been two rate-of-turn indicators, one echo are stored in the owner’s database after hav- resiliently mounted on pneumatic shock sounder, two VHF sets, one integrated auto ing been checked.This way savings of 2 to 5% absorbers. Furthermore, acoustic insulation, pilot system, GPS, CCTV camera system have been achieved in the field of operational sound insulated glass panels and floating around the engine room, rudder indicators costs. floors have been installed to prevent machin- for own system and barges, and an anemome- ery noise from penetrating the accommoda- ter. Propulsion Plant tion area, where the noise level in the cabins The propulsion installation is situated in the is about 54dBA at maximum. “Economic cruise control” midship section of the vessel.The installation For a highly powered push boat on the coal consists of three MaK 8M20 marine diesel Wheelhouse and ore trade, fuel costs are a substantial part engines, rated 1,360KW at 900rpm. The A lot of effort has been made to realise a Three MaK engines provide a total of 4.080 kW of propulsion power clear view over 360 degrees from the wheel- house. In order to obtain this, there is no steel construction at all in the wheelhouse front and rear, and only a minimum of steel construction in the sides.The frameless win- dows are made of double glass which is glued directly to the construction and to each other. The spacious wheelhouse contains a central command console which has been arranged for one-man watch operation of the vessel. In order to have an unobstructed view to the foredeck during manoeuvring and coupling of the barges, the two radar monitors are fitted on a separate swing arms, which can be shift- ed from the position in front of the central command console to the side on a rail system integrated in the command consoles. The vessel’s navigation and communication equipment is fitted in the central command console and in overhead displays. The com- HSB INTERNATIONAL JUNE 2007 - 8 engines are each fitted with a This resulted in a significant reduc- Vulkan highly flexible coupling of tion of vibrations around the the type RATO-R G2120R-2200 engineroom. and a Reintjes WAF 1943 marine reduction gearbox giving the three Electric Power propellers a speed of 256 rpm. Auxiliary power is derived from The main engines are flexibly four 315kW diesel alternator sets. mounted to the motor girders, Each alternator set is driven by a again an improvement to the noise Scania DS-12-62M diesel engine and vibration levels of the vessel. developing 380 kVA/50Hz at The five-blade Wärtsilä propellers 1,500rpm. have a diameter of 2,050mm and Furthermore a 80kW John Deere are fitted in propeller nozzles from harbour generator set is installed. Lips/Wärtsilä HR. A lot of atten- During normal service electric The gearboxes were delivered by Reintjes tion has been given to the design power is supplied by one auxiliary of the propellers and nozzles made generator. However, when the by Wärtsilä.. In order to improve bowthrusters are to be used, the the propeller and nozzle design other generator sets can be Wärtsilä has in close cooperation remotely started from the wheel- with ThyssenKrupp Veerhaven BV house. A PLC controlled system and DST carried out extensive automatically synchronises the analysis studies.These studies have generators to the bus bars. After led to the application of the HR use of the bow thrusters, the alter- nozzles featuring an inner stainless nator sets can be stopped from the steel covering over the complete wheelhouse. A black-out preven- length. tion is incorporated in the PLC In theory the new propeller-nozzle system. The complete electrical combination would give: installation has been designed, – more propulsion power ahead; delivered, installed and commis- – more thrust power astern sioned by GTI Marine & Offshore Four gensets are located in the spacious engine room (stopping manoeuvre); (GTI Suez). The scope of supply –a reduction of sound and vibration includes the main switchboard, the emissions. motor control centres and distri- During the technical trials of the bution and lighting panels, the con- push boat, the propeller nozzle trol boards in the switchboard characteristics matched the expec- room and the electrical outfit of tations. The boat attained a speed the mahogany wooden wheel- of 18.5 km/h while pushing six house consoles. The SAM engine loaded pushbarges. room alarm system consisting of 220 channels, and the frequency Exhaust silencers control of the bow thrusters was For fuel oil and lubricating oil also included in the scope of sup- treatment, two Westfalia separator ply of GTI. modules are installed. Heating is The shipboard electrical installa- incorporated in the lubricating oil tion consists of the following volt- module.Two bow thrusters are fit- age circuits: Caldic supplied the alternators for the gensets ted in a thruster nacelle. Each –a 220/380V,50Hz, three-phase Steering is with three independent rudders thruster is powered by a 400kW circuit for power and lighting; reversible electric motor and is –a 24VDC circuit for control and stepless frequency controlled. The signal appliances; tunnel thrusters are equipped with –a 24VDC circuit for starting four-blade fixed pitch propellers. purposes of the auxiliary Special care is taken for the design generators; and construction of the exhaust –a 24VDC circuit for emergency system. Under the silencers of the steering. main engines a special bridge con- Each 24VDC circuit is provided struction is constructed to sup- with separate batteries and charg- port the weight of the exhaust ers which however, for emergency installation directly to the bottom purposes can be interchanged by structure of the vessel. The means of switches. The chargers silencers are fitted onto the bridge are of the automatic type with construction with flexible mounts. boosting facility. A shore supply HSB INTERNATIONAL JUNE 2007 - 9 The electrical installation was done by GTI Suez The alarm and monitoring system is accessible through TFT screens socket of 63A is fitted near the starboard Subcontractors and suppliers of equipment fitted Kooiman, Scheepsbouwkundig entrance of the engine room.