WORLD DIAMOND – A SPARKLING GEMSTONE IN THE DAMEN CROWN

No 5 MbH Juli-Aug 2013-Voor Website.jpg 38 1On 18 January 2013 Damen Shipyards launched hull number 1230, to be named World Diamond, at their facilities in Galati in Romania. This platform supply vessel (PSV 3300 CD) is part of a contract from the Norwegian company World Wide Supply (WWS) for six identical vessels. These vessels are mainly built at Damen Shipyards Galati with support from their colleagues at Damen Shipyards Gorinchem, the Netherlands in combination with mainly Dutch sub-contractors and suppliers. The Dutch ‘Damen’ team provided all engineering and main equipment to ensure solid Dutch quality.

During MV World Diamond’s build process the schedule was brought forward. As a result the vessel successfully completed her sea trails at the end of May and beginning of June 2013 ahead of the original schedule. The vessel has recently been handed over to her owners WWS and is performing well for her new charter client in the North Sea region.

In the meantime the launching events continue in Galati, as they launched PSV number two and three on 28 February and 28 March. These two sister ships are to be named World Peridot and World Pearl respectively. The last vessels (for the time being) of the WWS-series of six is expected to be delivered at the end of 2013.

Damen Shipyards Group

The Damen Shipyards Group operates more than 55 shipyards, repair yards and related companies worldwide. They employ 8,000 people in 35 countries, delivered over 5,000 vessels since 1969 and deliver some 150 vessels annually to worldwide customers. Damen’s focus on standardisation, modular construction and keeping vessels in stock leads to short delivery times, low ‘total cost of ownership’, high resale value, proven technology and reliable performance. Damen offers a wide range of products and extensive services, such as lifecycle maintenance services, customer finance, training and transfer of (shipbuilding) knowledge. As a result of recent additions to the group, Damen can now also offer a network of 16 ship repair and conversion yards worldwide providing facilities for a comprehensive spectrum of conversions.

World Wide Supply

World Wide Supply AS is a newly established shipping company located in Ulsteinvik in M0re og Romsdal. M0re og Romsdal is a county in the northernmost part of Western Norway and the centre of the Norwegian technology cluster for offshore service vessels. The company focuses on offshore support shipping with medium sized PSVs. WWS is owned by a group of Norwegian and international investors and companies all with a background in the offshore industry. One of the largest investors is Rem0y Management AS.

No 5 MbH Juli-Aug 2013-Voor Website.jpg 38 2Rem0y Management AS is a well-established shipping company, located in Fosnavaag, also in M0re og Romsdal. Rem0y Management has a history of involvement in the supply vessel market. Recently they have concentrated more on the management (ownership and operation) of all the Coast Guard vessels of the Norwegian government and activities in ship management and crewing. With this investment Rem0y Management are re-establishing their position in the supply vessel market. WWS has committed MV World Diamond to transporting supplies, including fuel, water, cement and pipes, and crew to and from oil and gas platforms.

The general concept of the PSV 3300 CD

The Damen range of PSVs consists of five designs, each dedicated to the transport of supplies to and from oil and gas rigs. All vessels in this series have the sleek bow, providing them with a distinctive profile. The emphasis on all designs lies on high cargo capacity combined with efficient fuel consumption. Other important design features are the DP2 capability, good sea keeping characteristics, custom designed anti-roll tanks, azimuth stern drive propulsion, safety and high level of comfort.

MV World Diamond is the first of the new PSV 3300 CD series and follows on from the Damen PSV 3000 of which nearly 20 have been built so far. The building and completion of this vessel and others in the 3300 series are carried out by specialised partner companies, preferably with

E3: Environmentally friendly, Efficient in operation and Economically viable

a Dutch background or with Dutch headquarters. Among these companies are renowned names like Helmers for insulations, upholstery and furniture, Eekels for the electrical equipment and installations, Den Breejen for painting and conservation, and De Haan (Johnson Control) for air conditioning and ventilation.

Main purpose of the PSVs is the transportation of different cargo (fuel, drinking water, salt brine, cement, barite, drilling mud, drilling pipes, etc.) and personnel to and from the North Sea offshore drilling rigs and production platforms in support of hydrocarbon exploration and production activities. The vessels can also play a role in oil recovery operations. When used for oil recovery, skids with explosion proof equipment will be mounted in the dedicated local recess in aft main deck. For the purpose of loading this equipment and deploying it, the transom features a large door, which can be opened inward. Although this series of vessels is primarily designed for above purposes, they can also serve as a basis for other offshore support services such as diving support, drilling or well stimulation and even firefighting.

No 5 MbH Juli-Aug 2013-Voor Website.jpg 38 3Deck lay-out S cargo arrangement

The vessel boasts a large 730 m2 main deck, which is also suitable for carrying conventional containers. The hold can carry 10% more cargo than Damen’s former PSV 3000. Whilst the (cargo) tank lay-out has been optimised, not a single ‘litre’ of space is wasted, the liquid cargo intake as maximised to the limit. The double hull in combination with the lay-out of all of these tanks provides the optimal (environmental) safety.

A full suite of mooring and anchoring equipment is provided as is to be expected. The sheltered foredeck houses one electro-hydraulic anchor and mooring winch, with two warping heads and rope storage drums. On the aft main deck, two electro-hydraulic capstans (five tons bollard pull each) are installed on either side of the deck . Just behind the aft bulkhead of the superstructure on starboard side is a knuckle boom deck crane of 2.3 tons at a reach of eleven metre of lifting purposes when in harbour. At the same location, but now on centreline, two electro-hydraulic tugger winches of ten tons bollard pull each are available.

Wheelhouse

The bridge houses ergonomically designed consoles, specially designed to provide optimal visibility. The lay-out is rationalised lay to provide minimum personnel movement around the bridge for the loading and the DP operator.

The wheelhouse area is environmentally controlled by means of a balanced climate control system. The World Diamond is equipped with a comprehensive navigation, communication and entertainment package, supplied by Alphatron Marine, who also supplied the bulk handling control system. A notable feature is the central dimming system for all TFT monitors on the bridge.

Safety and comfort

The hull is designed to perform equally well in calm water as in rough seas. The sleek bow (which is akin to, but not the same as the Damen Sea Axe bow) literally ‘cuts’ through the waves reducing slamming to very low levels. This results in improved comfort and safety for the crew, vessel and cargo. Safety and comfort have been given a great deal of attention in the vessel.

The World Diamond has a high comfort level, which has been achieved by detailed noise and vibration analysis coupled with the use of high quality materials. Special attention has also been paid to the layout of the ventilation and air conditioning systems, accommodation colours, lighting and furniture. The interior is designed to the current standards in the 24/7 offshore industry and each cabin has access to internet, radio and television. Accommodation for a crew compliment of 16 persons and six passengers has been provided.

The vessel provides a very safe working environment, not only on deck, but also in all other working areas. The foredeck is completely sheltered for the same reason. When raising the issue of safety, the colour of the vessel’s hull and superstructure cannot go unnoticed. In the first instance, the bright almost fluorescent yellow is the specified choice of the owners. The choice of paint, however, is a typical Damen safety statement to make the vessel extremely visible at sea.

No 5 MbH Juli-Aug 2013-Voor Website.jpg 38 4Engine room and propulsion

Even though it has a larger cargo capacity, the slender hull of the new design has improved speed performance with the same engine size, facilitating significant savings in fuel costs and emissions. Diesel-electric propulsion was selected, because it has considerably reduced exhaust gas emissions. Power generation comprises of two smaller diesel alternators of 940 kW and two larger units of 1,370 kW, all which can be used in any combination. This flexibility ensures fuel consumption is reduced to a minimum, while speed and manoeuvrability is guaranteed. All generator sets are water-cooled Caterpillar engines with Stamford alternators, delivered by Caldic, and are all located down in the engine room in the foreship. The emergency/ harbour generator set, also a Caterpillar, is located higher in the superstructure on C deck.

The main alternators can all be run in parallel and the selection of the correct number of generators for any given scenario is done by the Deif power management system (also delivered by Caldic). This provides a measured response to changes in demand by starting or stopping generators as appropriate.

The exhaust systems are designed and installed in such a way as to provide for future (environmental) modifications, such as catalytic converters. A waste heat recovery system ensures no energy is lost while the cooling water system of the generator sets is fitted with a heat exchanger. Recovered heat can be used for domestic purposes (water makers and interior heating), engine pre-heating and the tank cleaning system.

The propulsion system of the vessel consists of two azimuthing Z-drive thrusters in the stern and two bow thrusters. The stern thrusters are Schottels with fixed pitch propellers in a nozzle, driven by Marelli electro-motors of 1,500 kW. The bow thrusters are Schottels with 735 kW e-motors again supplied by Marelli. Eekels Technology is responsible for the complete electrical installation, including the installation of all drives, converters, the power management system and the alarm/detection systems.

No 5 MbH Juli-Aug 2013-Voor Website.jpg 38 5The PSV will be kept on station with a dynamic positioning (Class DP2) system of Marine Technology (MT), when carrying out loading/ unloading operations around offshore drilling rigs or production platforms. The MT DP concept is based on a distributed architecture system that addresses both redundancy and segregation. The DP2 system uses three control computers and two operator stations. Using three control computers makes it possible to perform majority voting between the computers and to reject a computer should it fail. These are supported by stand-alone IO-units dedicated to each sets of sensors, position reference system, power management and each thruster. This system reduces cable installation considerably.

The Damen E3-standard

The Damen mind set during the design process was to reduce the vessel’s impact on the environment and improve efficiency at the same time. In order to achieve this, Damen build the PSVs according to their own E3-principles: Environmentally friendly, Efficient in operation and Economically viable. Thus combining the needs of the planet, the people operating the ship and the owner’s need to make a profit. In addition, the vessels fulfil the latest requirements of Clean Design and Environmental Protection standards of the major classification societies. The hull shape, the location of oil tanks, the choice of hull coatings and refrigerants, ballast water treatment, recovery of waste heat, engine emissions and other environmental aspects were also given special attention.

Tom Oomkens

 

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