With an eye to the precious and fragile North Sea’s wadden sea national park, an UNESCO World heritage, the idea arose to develop an emission-free ferry with very low draught for shallow coastal waters. In close cooperation between Becker marine System and Schramm Group GmbH arise the new sister ships FERING and ÖÖMRANG. Both the ferries will be the first ships with LNG HYBRID drive. The new ferries will go into service on the Dagebüll-Föhr-Amrum route by the end of 2013.
The drive consists of a combination of LNG gensets and batteries. The gas engine generator sets provide the batteries and the batteries supply electric energy to highly efficient electric torque units. The large battery capacity of both the ships will be, during night times, charged by wind energy. For the first time a “green” ferry operation by carbon trading can be done. The new wadden sea ferries do not play a part in contributing for additional charge of the environmentally s... [More]
The definition describes a hybrid-drive as a propulsion system, which consists out of two different drive-systems. For this purpose at least two energy converters and energy storages must be in use. Apart from some exceptions preferably combustion engines and electric motors are combined into a hybrid-drive.Dutch Veth Propulsions Technical Director Marco Huisman: ”The innovation on this new system is that two different drives are used. The Veth Propulsion hybrid drive offers a lot more solutions for drive profiles, because of its combination of diesel and / or electric motor propulsion. Both drives can be used within their optimal system effectiveness curve. This offers all benefits of a diesel electric drive without any disadvantages.
The hybrid drive features moreover an additional advantage: the asynchronous electric motor can also be used as a generator. In doing so it does not cost any additional fuel compared to a separate running gen-set which runs in low idle &nda... [More]
New marine diesel engines by Cummins are now available in its Quantum series, Tier 3 certified by the US Environmental Protection Agency (EPA). To sell an engine or vehicle within the United States manufacturers must demonstrate compliance with the Clean Air Act and all applicable EPA regulations. Hence Cummins has now upgraded its popular Tier 2 certified QSK19 and QSK60 engines to comply with the more stringent Tier 3 standard.
Marine Diesel Engine: Cummins QSK19: Photo credit Cummins
A Tier 3 engine requires 50% reduction in particulate matter and a 20% reduction in nitrogen oxides compared to Tier 2 standards, which Cummins achieved through the application of advanced combustion technology without any need for after-treatment of engine exhaust gas emissions.The Tier 3-certified QSK19 and QSK60 feature the same premium base engine hardware and footprint as the existing MCRS product. Furthermore, the lubrication, cooling, air handling, fuel and exhaust systems are the same de... [More]
The world fleet will be greener, leaner and meaner in the next eight years according to DNV’s Research and Innovation Unit in their just published ‘Technology Outlook 2020’ as they follow the example of the poet Tennyson – “For I dipt into the future, far as human eye could see, saw the vision of the world, and all the wonder that would be.” So too, the DNV team made many correct predictions in its last 2008 ‘Outlook’ (although they admit surprise that the wind energy sector developed so rapidly) which gives added weight to their latest analysis.
Photo credit:stock.xchange (Goodmorph)
Key prognostications with a bearing on developments in marine power and propulsion technology, follow.
Upcoming Energy Efficient Design Index (EEDI)The EEDI (Energy Efficient Design Index) regulation requires new-buildings in 2025 to be 30% more energy efficient than today’s average ship which will drive implementation of energy efficiency mea... [More]
A tugboat commissioned by a Japanese operator is the first to be fitted with a fully electronic control system uniquely installed on the rotor casing foundation of its Voith Schneider Propellor propulsion unit. An arrangement that not only saves space, but also simplifies maintenance and increases reliability.The new Voith Water Tractor (VWT) ‘Shinano’, designed for harbour assistance and escort duties, was constructed by Niigata Shipbuilding based in Niigata, Japan, for owner Dr. Nakamura, who operates his fleet of tugs in the port city of Iwaki.
Voith Water Tractor ‘Shinano’: Photo credit Voith TurboVoith Electronic Control SystemThis first installation of a fully electronic control system in a VWT, now integrated into the propulsion system, offers actuation and control of the propulsion systems, remote diagnostics via the Internet and communication through an embedded CAN networks. (The CAN bus – Controller Area Network – is designed to allow mic... [More]
Clean, renewable electricity from onshore means that Swedish Shipping Company Stena Line’s vessels Stena Germanica and Stena Scandinavica could shut off their diesel generators during their stay at Port of Gothenburg since early 2011 onwards. This pioneering project has gained a lot of interest among shipowners, ports and power utilities all over Europe. Now, after almost one year of tests, Stena expands their shore power supply activities also in the port of Rotterdam at its Stena Line terminal. Terminal operator Stena Line contracted ABB to provide the technology for its ferries in order to mitigate any negative impact of its operations on the local community and the environment. As part of the plan to cut its fleet’s fuel consumption, Stena Line invested in the complete electrical infrastructure needed to simultaneously power two vessels while berthed in Hoek van Holland.The two Cavotec Alternative Maritime Power (AMP) systems at the Hoek van Holland Holland terminal are... [More]
Damen Shipyards, headquartered in The Netherlands, has just secured an order for no less than fourteen ship-handling tugboats from the Kuwait Oil Company (KOC) nine of them to their latest ASD TUG 3212 design, and five to their better-known 2810 design. The new 3212 tugs, designed to push, pull and tow, will be assisting tankers at nearshore loading terminals and will also be equipped with a powerful fire-fighting system for station at the new single point moorings further offshore Kuwait.These vessels, due for delivery from Damen Shipyards Galati in Romania in 2014, have been tailored to meet KOC’s requirements, but the design features of Damen’s standard version of the optimised model 3212, with its stronger 80 ton bollard pull are the focus here.
Damen Shipyards ASD TUG 3212:Image courtesy Damen Shipyards
New Hull FormAt 32.70m in length overall, 12.82m beam, a draft aft of 5.6m and a displacement of approximately 800 tons the ASD Tug 3212 has a completely revised hull... [More]
Times of economic austerity in the maritime sector demand of new engines the lowest possible operational costs and best environmental performance, factors that led two Singapore companies to choose Wärtsilä’s recently introduced X72 licensed engines to power four new-build container ships and two bulk carriers now on order in Chinese shipyards. Indeed, Wärtsilä claim that with the X72 engine, compared to similar vessels that have recently been delivered, the bulk carriers’ fuel consumption can be reduced by approximately 5 tons/day, while the container vessels can achieve savings of 4 tons/day.Wärtsilä had in mind Capesize bulk carriers, and Panamax container vessels just such as these new vessels as ideal applications for the 72-bore engine when they began R&D about two years ago at their Low-Speed Competence Centre in Winterthur, Switzerland.The Wärtsilä X72 Engine
Image courtesy of Wärtsilä
Basically, this ma... [More]
One of the first ships in the world to use a DC bus system for the main electrical installation recently entered service – the Abis Dover a 6000 dwt twin screw, diesel-electric powered, multipurpose special cargo vessel.
M/V Abis Dover: Photo credit Alewijnse Marine Systems
Built in the Shipkits shipyard in a project that included Vuyk Engineering Groningen, Alewijnse Marine Systems, all based in The Netherlands, and Finland’s Vacon, the ship’s upper cargo hold is a remarkable 80 m (262.5 ft) in length, almost 75% of the LOA of 107m (351ft), achieved by avoiding space-consuming propellor shafts and going for the diesel-electric propulsion option. Propulsion power comes from six Scania gensets, tucked away in space otherwise wasted, to drive steerable Z-drive thrusters.
Not content with that, the design team set themselves the task of overcoming the main disadvantage of conventional AC power, namely that all the generators have to run synchronously ... [More]
“Look at the ships also: though they are so large and are driven by strong winds, they are guided by a very small rudder …”. Thus St. James remarked in the early years of the first millennium, and nothing much has changed since then except the power source and the addition of a propellor.The interactive dynamic between those two appendages – rudder and propeller – in modern ships, and the part that plays in efficient and economic ship operation has been recognised by two long established Dutch/German rudder and propellor specialists who have recently joined hands to optimise design and manufacture. Van der Velden Marine Systems (VDV) and Mecklenburger Metallguss (MMG) name their solution the ‘Energy Saving Package’ which is intended to do ‘what it says on the box’.In general terms, rudder and propeller designer both have one thing in common amongst a myriad of complexities: their design parameters are set by the mission profile of ... [More]