Influence of after-treatment systems on NO2 emissions in diesel engines

• Autorzy: Żółtowski A.

Identyfikatory

DOI

10.19206/CE-2017-304

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

emissions measurements; aftertreatment system; particulate filter

PL

pomiary emisji; filtry cząstek stałych

• Wydawca: Polskie Towarzystwo Naukowe Silników Spalinowych
• Czasopismo: Combustion Engines
• Rocznik: 2017
• Tom: R. 56, nr 3
• Strony: 24--29
• Opis fizyczny: Bibliogr. 6 poz., wykr.

Twórcy

autor

Żółtowski A.

• Environmental Protection Center in Motor Transport Institute

Bibliografia

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• [2] 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.
• [3] BISHOP, G.A., STEDMAN, D.H. Emissions of nitrogen dioxide from modern diesel vehicles. WIT Transactions on Ecology and the Environment. 2008, 116.
• [4] 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.
• [5] ŻÓŁTOWSKI, A. Badania skuteczności filtru CRT w silnikach pojazdów ciężkich. Combustion Engines. 2009-SC1, 391-397.
• [6] ŻÓŁTOWSKI, A. Analiza porównawcza testów badawczych emisji zanieczyszczeń. Transport Samochodowy. 2008, 2, 63-74.