Integrated management of exhaust gases of marine diesel engines as a way to ensure their environmental performance

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Published: Aug 11, 2020
DOI: https://doi.org/10.47049/2226-1893-2020-2-142-159
Keywords:
diesel ecological parameters, exhaust gases recirculation, exhaust gases by-pass, complex operation of exhaust gases

Main Article Content

O. Kuropyatnyk
National University «Odessa Maritime Academy»

Abstract

The analysis of ship Diesel engines exhaust gases, assured the reduction of Nitrogen oxide emission into environmental, has been performed. The recirculation exhaust gases system has been analyses, when at 0-21 % of gases return to charge air receiver, as well as the system of exhaust gases by-pass, when 0-10 % of gases return to the exhaust receiver, without preliminary passing through the gas turbine. The result of research on influence of recirculation systems and exhaust gases by-pass to the ecological and economic parameters of ship engine 16V32 Wartsila-Sulzer has been provided. The level of exhaust gases recirculation has been changed from 0- 21 % and has been controlled on the coefficient excess air ratio during appliance of recirculation and during working of diesel without appliance of recalculated gases. The level of exhaust gases by- pass has been changed into the range 0-6 % and has been controlled based on the quantity of exhaust gases-general and going to by-pass. Experiments provide that the usage of exhaust gases recirculation into the range of Diesel engine operation service load 16V32 Wartsila-Sulzer 35-95 % assure the decrease of nitrogen oxide emission on 2,4-33,6 %. During this the increasing of specific effective fuel consumption on 3,3-2,2 % is performed. The by-pass system of exhaust gases into the range of Diesel engine charge 16V32 of Wartsila-Sulzer 35-95 % assure the oxide nitrogen emission decreasing on 6,5-17,9 % at simultaneous increasing of specific fuel consumption on 2,7-1,2 %. The appliance of complex system of exhaust gases operation (combining recirculation system and exhaust gases by-pass) assure maximum decrease of oxide nitrogen emission at minimum increase of specific effective fuel consumption. In the meantime for the effective combination of recirculation system and by-pass (that is for the current Diesel engine 16V32 Wartsila-Sulzer comes to 15 % and 6 %) the oxide nitrogen emission decrease assure on 31,27-38,23 % with respective increasing of specific effective fuel consumption on 2,68-1,11 %. The usage of complex system exhaust gases operation of Diesel engine is the most effective measure to assure its ecological working parameters.

Article Details

How to Cite
Kuropyatnyk, O. (2020). Integrated management of exhaust gases of marine diesel engines as a way to ensure their environmental performance. Herald of the Odessa National Maritime University, (62), 142-159. https://doi.org/10.47049/2226-1893-2020-2-142-159
Issue
No 62 (2020): Herald of the Odessa National Maritime University
Section
Technical problems of operation of ship power equipment
Author Biography

O. Kuropyatnyk, National University «Odessa Maritime Academy»

graduate student

References

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