World transport produces 13% of the total greenhouse gas emissions. The Navy accounts for only 3% of these. However, due to the intensive development of the fleet over the past five years this index has doubled: more powerful propulsion systems require more fuel, number of vessels increases, proportionally increase emissions. In addition, from the perspective of environmental management for the global shipping industry questions of ballast water treatment, waste disposal, development of port receiving facilities, oil spill response and treatment of decommissioned ships are relevant.
"Marine Technics" Group is one of the first companies on the Russian shipbuilding market to respond to the trend of environmental regulations strengthening. Currently the company is actively developing the department of supplies of marine equipment meeting the strictest environmental standards. Today the company offers not only waste water treatment and oily water separation systems, but also the latest developments in diesel engine manufacturing.
Currently the only specified parameter for marine engines is nitrogen oxide emission (NOx) in accordance with MARPOL. During combustion process in an engine a number of compounds is produced which falls into the atmosphere, but the nitrogen oxides are the most harmful ones. In a diesel engine they make up from 30 to 80% of all emissions. Since 2000, marine engines at the manufacturing stage pass through the test that shows NOx content in exhaust gases, and receive the so-called technical file, which specifies the reference values for the different modes of operation. Prior to 2010 the standard TIER I has been in force (allowed 17 grams of NOx per kilowatt-hour), now TIER II is in force (14,4 g), and in 2016 will come into force standard TIER III.
For several years, the German concern MAN has been developing modern equipment complex, which will allow reducing NOx emissions significantly. Thus the "MAN SCR" system was born.
"SCR" system consists of several blocks and is designed to operate on the engines of series 2868 and 2862 which have already proved themselves. The engines are available in the range from 441 to 732 kW in heavy-duty, from 588 to 1029 in medium duty, and from 557 to 1324 kW in light duty.
Thanks to the work of the staff of designers and engineers, the "MAN SCR" system may be designed in different forms, making it easy to fit the structure of most of existing ships. The system is fully autonomous and does not require the installation of additional equipment. Engines with "MAN SCR" already meet the standards Tier III, which are coming into force on January 1, 2016.
Detailed information on MAN SCR system you can get from our managers by phone (812) 309-46-46 or by e-mail to:man.marine@marinetec.com
