What will the marine propulsion system of the future look like? An interview with Dr. Andreas Lingens, Executive Vice President Development at MTU. [More]
Leading engine manufacturers partner to renew work toward increased efficiency [More]
Example of a bulk carrier with four Norsepower Rotor Sails on the port side
Finnish marine engineering company Norsepower Oy Ltd. announced this week that it will bring to the commercial maritime market an auxiliary wind propulsion solution aimed at maximizing cargo ship fuel efficiency, with first sea tests on a Finnish cargo ship slated to begin later this year.Norsepower’s Rotor Sail Solution is an updated version of the Flettner rotor, a concept that dates back to Finnish engineer Sigurd Savonius in the early 1900s. The Flettner rotor gets its name from German engineer Anton Flettner, who was the first to build a ship which used spinning vertical cylinder rotor sails for propulsion.Though the basis for this technology is not entirely new, Norsepower has improved upon the original concept with various improvements. Norsepower said its update uses improved technology, advanced materials and a leading-edge control system to allow the main engines to be throttled back when... [More]
New marine diesel engine from MHI-MME offers lower fuel consumption during slow steaming [More]
Wärtsilä said its new inline scrubber system offers a number of “notable benefits” over conventional exhaust gas cleaning systems. Already with several ships in line for installation, the company says its new product, saves space, lowers cost and eases installation.Important for all vessels, but particularly for smaller vessels and retrofit projects, space is of chief concern when considering engine room configuration. Add after-treatment products such as scrubber systems into the mix, and space becomes an even greater priority.Sigurd Jenssen, Director, Exhaust Gas Cleaning, Wärtsilä Ship Power, said, “Space availability is a challenge that makes it difficult for many vessels to have exhaust gas cleaning systems installed.” That’s why Wärtsilä has placed a great deal of emphasis on compactness when designing its new inline scrubber system, which was engineered to conserve considerable (and precious) space. The company said thi... [More]
Sinopacific builds cargo tanks for 9.686 cubic meter with BV-ClassThe future of the Natural Gas Shipping keeps a majority of the shipping industry busy. Again and again new equipment and machinery is developed. Such as in China. At present there arise the largest Bilobe-Liquid Gas Storage tanks.They are nearing completion at China’s Sinopacific yard and will be installed in a series of four 27,500 cu m semi-refrigerated LNG/Ethylene carriers building for Denmark’s Shipping Company Evergas. Each of the IMO Type C Bilobe tanks has a capacity of 9,686 cu m. Two of the tanks in each vessel will be supplemented by a third conical Type C cargo tank and a smaller LNG fuel tank on the deck of the vessels. International classification society Bureau Veritas is classing the world’s largest Bilobe-Gas Tanks.
MAN EcoCam further optimises slow-steaming concept
MAN Diesel & Turbo has introduced the MAN EcoCam as a retrofit solution for the low-load optimisation of its low-speed, mechanical engines with single turbochargers. The EcoCam offers significant fuel savings of 2 - 5 g/kW – with short payback times – and delivers an increased Pmax cylinder pressure through the adjustable exhaust-valve timing.Christian Ludwig – Head of Retrofit & Upgrade – MAN Diesel & Turbo, said: “Slow-steaming is now an established industry standard across all segments, including the tanker and bulker markets, and MAN continuously seeks to further refine its technology and improve efficiency. The MAN EcoCam adjusts the exhaust-valve timing between 10 and 60% load, giving a 2 - 5 g/kW fuel saving with minimal to no interruption to a vessel's schedule during installation. . For smaller engines, this can result in a payback period of as little as 1½ years as is the case,... [More]
New functions for the autonomous ship
The KISS principle will also be applied to the ship itself and it is also important to look at how existing vessels can be modified to support unmanned operation. At the hardware level, technical modifications will be necessary, for example to the fuel-processing system, while an electric-powered water-jet for back-up propulsion and steering may have to be retrofitted.New sensors to replace the look-out are also an important part of the unmanned ship. A combination of high resolution radar, low-Iight and infrared cameras form the 'advanced sensor system'. Most of the technology involved is already available and its adoption would be more a question of cost than of general availability. The sensor-system will be integrated with more conventional equipment such as the AIS system and ARPA radar. Computer-based data fusion, using Information from the various sensors, will further increase the capability of the sensor system. All these systems are alre... [More]
DP3 is a new offshore vessel positioning technology standard set by IMO that will enable a couple of new Farstad offshore vessels on the stocks in Norway to work safely in the most demanding and potentially dangerous situations using systems equipment provided by Rolls Royce.Basically, to maintain an accurate position determined mainly by satellite navigation system (anchoring is not in itself precise enough) an offshore vessel needs to be equipped with propulsors and thrusters controlled automatically by a dynamic positioning (DP) system in such a way as to oppose the resultant force of wind, waves, tides and currents.
Dynamic positioning, propulsion & thruster schematic: Courtesy of Rolls-Royce
Deep-water drilling for oil or gas (common now as shallower resources deplete) is an operation that often carries with it the need for jack-ups, construction and support vessels to operate in extremely demanding situations where any loss of position might result in fatal accidents, severe ... [More]
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