Investigation of NOx Emissions From Euro-IV Diesel Buses Using PEMS

DOI

10.2991/eame-15.2015.66How to use a DOI?

Keywords

diesel bus; Selective Catalytic Reduction (SCR); Work-based Window Method; Portable Emissions Measurement System (PEMS); NOx Emission

Abstract

In this study, gaseous pollutants from three Euro-IV diesel buses equipped with urea selective catalytic reduction (SCR) system were investigated using portable emission measurement system (PEMS) in real world operating conditions. A work-based window method was applied to calculate on-road brake-specific oxides of nitrogen (NOx) emissions for the diesel buses. The emission test results showed that the Brake-Specific NOx (BSNOx) emission was significantly higher than the diesel engine corresponding legislation limit because the urea SCR system was not activated or not at optimal operation state under low exhaust temperature condition when the diesel buses run at low average vehicle speed.

Copyright

© 2015, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

Download article (PDF)

TY  - CONF
AU  - L.J. Hao
AU  - Q. Liang
AU  - J.D. Guo
AU  - Y.S. Ge
PY  - 2015/07
DA  - 2015/07
TI  - Investigation of NOx Emissions From Euro-IV Diesel Buses Using PEMS
BT  - Proceedings of the 2015 International Conference on Electrical, Automation and Mechanical Engineering
PB  - Atlantis Press
SP  - 242
EP  - 244
SN  - 2352-5401
UR  - https://doi.org/10.2991/eame-15.2015.66
DO  - 10.2991/eame-15.2015.66
ID  - Hao2015/07
ER  -