New Bunker Fuel-blending S3 Device: A Scrubber Alternative For Some Trades

By George Backwell at August 17, 2013 00:49
Filed Under: Fuels & Lubes, Marine Diesel Engines, New Technology
The S3 switch (a marketing acronym for ‘Smart Sulphur Switch) is a prototype developed by Denmark’s Insatech in cooperation with O.W. Bunkers, to blend and adjust two fuels (HFO and MDO) to a desired sulphur content enabling monitoring and control of marine diesel engine exhaust gas emissions without fitting expensive scrubber units.  The S3 is presently on trial aboard ships belonging to some of this major bunker supplier’s customers in Northern European waters, and commercial production is planned for later this year. S3 Fuel Switch Skid: Image credit Insatech Fuel Switching and BlendingOn most modern ships two service tanks are provided: one service tank contains the higher sulphur fuel oil and the other may contain low sulphur fuel to ensure MARPOL Annex VI emission regulations are met. This arrangement will involve a fuel changeover at some point during the ship’s engine operation, normally achieved by means of a three-way valve, and it is at this poin... [More]

Eidesvik Orders LNG Powered PSV from Wärtsilä

By Jocelyn Redfern at December 28, 2010 11:19
Filed Under: Company News
Wärtsilä Corporation, Trade & Technical Press release, December 2010 [More]

Dual Fuel Marine Diesel Engines – LNG & MDO – the Way Ahead?

By George Backwell at November 09, 2010 08:05
Filed Under: General
Marine Diesel engines, thanks to enormous technological strides in the past few decades, have proven themselves powerful, reliable and efficient, to the extent that by year 2000 motor ships composed no less than 98% of the merchant fleet. Despite these plaudits, regulatory bodies continue to penalise the Diesel engine for exhaust gas emissions inherent in a combustion process using Marine Diesel Oil (MDO) fuel that almost always leaves by-products of oxides of nitrogen, unburned hydrocarbons, and carbon monoxide in the exhaust smoke.Environmentalists have the expectation that technology will solve all political and economic problems, and will not be disappointed to hear that developers have succeeded in harnessing low emission Liquid Natural Gas (LNG), a  clean fuel with lean burn combustion characteristics, to power the engine invented by Rudolf Diesel in 1897. Many analysts confirm the recent prediction of Klaus Deleroi, Senior V-P, MAN Diesel & Turbo SE, that: "When it come... [More]

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