Scrubber strips the exhaust gas of sulphur

By Peter Pospiech at September 28, 2012 06:31
Filed Under: Company News, drive systems
New legislation governing SOx emissions of ships affects ship design and operation. If the vessel operates in areas where SOx emissions are controlled, compliance can be achieved by using low sulphur fuel, or by cleaning exhaust gases using SOx scrubbers, or by a combination of both. Exhaust gas scrubbers offer shipowners an alternative to switching to more expensive marine gas oil as they prepare to meet tougher IMO regulations on sulphur oxide (SOx) Emissions. The fuel sulphur limit applicable in Emission Control Areas (ECA) will be reduced to 0.1% from January 2015. However, as yet, not everyone is convinced that the technology is all it’s cracked up to be.Wärtsilä, beside Alfa Laval, is a well-known manufacturer of all kinds of marine related products. The company is aggressively contesting the SOx scrubber market. The company’s system uses fresh water, closed-loop configuration in which sulphur oxides in the exhaust are neutralized with caustic soda. A small ... [More]

New Narrow Wärtsilä RT-flex50 D Series

By Keith Henderson at June 12, 2012 07:55
Filed Under: Company News
Wärtsilä has announced the successful testing of a special version of its RT-flex50 two-stroke slow speed series. Designated the D version, it has the turbocharger relocated on the driving end side of the engine. The new RT-flex50D series is much more compact by locating the turbocharger directly above the fly wheel at the driving end of the engine. In ships with narrow stern sections the engine choice was limited and often required specifying an engine of smaller bore and higher rotational speed. The Wärtsilä RT-flex50D is offered in five to eight cylinders configurations in the power range of 6,100 to 13,960 kW with a speed band of 99 to 124 rpm. Typical applications for the new D series would be in small bulker and product tankers, handymax and panamax bulk carriers, container and feeder container vessels, and feeder ships. [More]

GE Turbines Offer Hybrid Solutions

By Keith Henderson at May 10, 2012 07:36
Filed Under: Company News, Navy News
GE is offering hybrid propulsion systems for military and commercial applications based on its LM series gas turbines using electric motors and drives, to reduce noise and emissions through improved fuel economy. GE has a wide experience of hybrid systems, acting as systems integrator, GE is able to team with other industry suppliers to provide all electric propulsion solutions. A particularly successful combination with gas turbines is the CODAG or CODOG arrangement where diesel engines are employed at low output with the gas turbine(s) only used to produce boost power. As the cost of fuel increases, such solutions are not limited to newbuilds, repowering of existing vessels can also provide tangible financial benefits. In the future wider use of fuel cells can replace diesel engines to provide further reductions in exhaust, noise and vibration emissions. [More]

New X92 Model Added To Wärtsilä Low Speed Range

By Keith Henderson at April 26, 2012 07:57
Filed Under: Company News
Wärtsilä today announced the addition of a new X92 model with 9,200 mm bore. The X-series features an extra long stroke with reduced engine revolutions allowing a higher efficiency larger diameter propeller to be used. The X92 series is aimed at the market for large and ultra-large container vessels with a size above 8,000 TEU up to to any size under construction and beyond. The first 92 bore engine is planned for delivery in 2014.Power output figures have not yet been released but an estimation would give a value of around 5,200 kW per cylinder for the new engine. [More]

Dual Fuel Guide Ship for S.Korea

By Keith Henderson at April 19, 2012 08:00
Filed Under: Company News
Samsung Heavy Industries (SHI), Republic of Korea has designed a 200 GT Guide ship for the Port of Incheon Authority with environmental sustainability as a priority. The Guide ship has an LOA of 115 ft (38 m) and will have a service speed of about 15 kn. When operating on LNG it will be compliant with Tier III exhaust emission regulations. The propulsion system selected is a medium speed Wärtsilä 9L20DF with an output of 1,584 kW at 1,200 rpm. [More]

Incat 130 m Train Ferry

By Keith Henderson at April 10, 2012 07:52
Filed Under: Company News
Incat, Australian builder of fast ferries has produced a design for a modern day fast train ferry with a capacity for 44 container or special wagons aimed at speeding up rail freight across water. The design follows the Incat preference for a catamaran hull of 1,700 dwt with a LOA of 426 ft . Propulsion is by four medium speed MAN 20V28/33D diesels each rated at 12,064 hp (9 MW) at 1,000 rpm powering a Wärtsilä LJX 1500 SR waterjet. Running with 200 tons deadweight, speeds of 39+ kn and fully laden with 1,700 t speeds in excess of 30 kn may be expected. In addition to the 900 rail lane meters on the main deck, there is an upper deck for road vehicles and passenger accommodation for up to 200 passengers and crew. [More]

Megayacht Designed for Dual Fuels

By Keith Henderson at March 29, 2012 06:57
Filed Under: Company News, Research & Development
Italian builder Fincantieri, together with engine manufacturer Wärtsilä and designer Stefano Pastrovich have put forward a 325 ft megayacht concept called X-Vintage, using the dual fuels of LNG and MGO. The impending IMO Tier 3 regulation deadline of 2016 and the expected expansion of Emission Control Areas, using LNG avoids the necessity of having to incorporate exhaust treatment equipment to ensure compliance with the forthcoming regulations. In the X-Vintage, the twin tanks are located forward of the “garage for toys” where the headroom, out of necessity to accommodate some of the toys, is greater than on the other decks. A twin shaft electric propulsion system is specified with six Wärtsilä 6L20DF dual fuel generators each rated at 1,056 kW at 1,200 rpm. [More]

Mechanical Drive First With Dual Fuel Newbuild.

By Keith Henderson at March 27, 2012 06:13
Filed Under: Company News, Industry Events
Specialist ship owner Anthony Veder, Netherlands, new LNG carrier ordered from Mayer Werft, Germany is due for delivery in the second quarter of 2012. A direct mechanical drive system is specified for the vessel which is believed to be the first application of its type. The new LNG carrier has a capacity of 550,000 ft3 (15,600 m3) with a LOA of 512 ft (156 m) The single shaft propulsion system comprises a Wärtsilä 50DF dual-fuel engine going through a reduction gearbox to a controllable pitch propeller. Operation on LNG all but eliminates SOx emissions and reduces the production of CO2 and NOx to levels that are sufficiently low as to be within the IMO Tier 3 NOx regulations and compliant with the requirements of the ECAs. [More]

Wärtsilä X35 Engine Now Available For Market Introduction

By Keith Henderson at March 22, 2012 07:50
Filed Under: Company News, General
Two six cylinder X35 engines successfully completed the Factory Acceptance Trials last month in two separate facilities, one at 3.MAJ Engines & Cranes, Croatia, and the other at Yuchai Marine Power Co., Ltd. (YCMP), China. The trials were witnessed by representatives of the Classification Society, the shipbuilder, and the shipowner. The new engine series was originally introduced in May 2011 as the RT-flex35, following these good results, the X35 engine series as it is now known, is henceforth available for introduction to the market. It is a completely new engine that, together with the Wärtsilä X40, will cover the small-bore end of the market and fills a gap in a segment where Wärtsilä has not been present for a number of years. [More]

Wärtsilä Diesel Engines Mated with Scrubbers for New Lakers

By George Backwell at February 07, 2012 09:45
Filed Under: General
St. Lawrence  –  Great Lakes Seaway shipping line Algoma Central Marine is spending $300 million on new ships, including six that will be 45% more fuel efficient per cargo tonne/kilometre than existing vessels. These ‘Equinox-class’ lakers  provide Wärtsilä with a $12 million ground-breaking order for complete propulsion packages that come with fully integrated fresh water scrubber systems.  The lakers to be delivered by China’s Nantong Mingde Heavy Industrial Stock Company shipyard over the next couple of years are designed to lift 30,000 dwt of bulk cargo, wheat and ore, for carriage through the seaway to the American heartland in ‘Lakers’ hallmark slim 225 m long hulls. Algoma Equinox-class Laker: Image credit – Algoma Central Corporation Replacement of the St Lawrence Seaway FleetsThe big three fleet operators, Algoma Central, Canada Steamship Lines and Fednav, all with relatively elderly ships, have been s... [More]

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