Influence of after-treatment systems on NO2 emissions in diesel engines
More details
Hide details
Environmental Protection Center in Motor Transport Institute
Publication date: 2017-08-01
Combustion Engines 2017,170(3), 24-29
The article discusses the results of bench tests that monitor the increase of NO2 emissions in the heavy duty vehicles engines exhausts as a result of the use of particulate matter filters. The use of passive particulate matter filters inevitably leads to an increase in NO2 emissions from the engine. The particularly intensive increase in the emissions occurs when SCR reactors are shut off, which is still a common practice among drivers. NO2 concentrations in exhaust gases of DPF-equipped engines reach concentration dangerous for human health and life. The causes of the NO2 formation in the vehicles’ exhaust systems, the harmfulness of this chemical, and the results of NO2 measurements in different tests, are discussed. In addition, the effect of the presence of this compound on the accuracy of opacity measurement is discussed.
ŻÓŁTOWSKI, A., TAUBERT, S., WIŚNIOWSKI, P. Ograniczenie emisji cząstek stałych z silników o zapłonie samoczynnym oraz opracowanie metodyki wyznaczania macierzy emisji masy i liczby cząstek stałych. Work No. 6503/COŚ of Motor Transport Institute, 2017.
40 C.F.R. Appendix A to Part 355 – The list of extremely hazardous substances and their threshold planning quantities. (July 1, 2008 ed.). Government Printing Office. Retrieved October 29, 2011.
BISHOP, G.A., STEDMAN, D.H. Emissions of nitrogen dioxide from modern diesel vehicles. WIT Transactions on Ecology and the Environment. 2008, 116.
DAVIDSSON, J.A., CANTRELL, C.A., MCDANIEL, A.H. et al. Visible-ultraviolet absorption cross sections for NO2 as a function of temperature. J. Geophys. Res. 1988, 93, 7105.
ŻÓŁTOWSKI, A. Badania skuteczności filtru CRT w silnikach pojazdów ciężkich. Combustion Engines. 2009-SC1, 391-397.
ŻÓŁTOWSKI, A. Analiza porównawcza testów badawczych emisji zanieczyszczeń. Transport Samochodowy. 2008, 2, 63-74.
An Experimental Study on the Performance and Emission of the diesel/CNG Dual-Fuel Combustion Mode in a Stationary CI Engine
Arkadiusz Jamrozik, Wojciech Tutak, Karol Grab-Rogaliński
Journals System - logo
Scroll to top