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Experimental approach concerning the selective catalytic reduction of NOx for diesel engines of Romanian railway transport

R. M. BALOGH1, I. IONEL1,*

Affiliation

  1. ”Politehnica” University of Timisoara, Faculty of Mechanical Engineering, Timisoara, Romania

Abstract

Transportation and its systems are one of the most used and important mobility systems worldwide, assuring the development of economy and society. For this reason it is important to have non polluting characteristics, especially in the case of being equipped with internal combustion engines (most diesel ones). In this case, it is extremely important to determine the chemical pollution produced by the large diesel engines and limit, by all means, the impact of the exhausted flue gas emissions on human health and environment. The Western part of Romania has the most developed rail network of the country concerning the diesel traction, and this article is focusing on on line NOx concentration, generated by such diesel locomotives, used in the real regional railway transport. Representative measurements data set of NOx from a diesel engine will be presented. Finally, the authors demonstrate that the SCR (selective catalytic reduction) after-treatment is a present necessity to reduce NOx concentration and a best available technique to modernise the national railway fleet in Romania..

Keywords

NOx concentration, Diesel engine, Selective catalytic reduction (SCR), Environment, Pollution.

Citation

R. M. BALOGH, I. IONEL, Experimental approach concerning the selective catalytic reduction of NOx for diesel engines of Romanian railway transport, Optoelectronics and Advanced Materials - Rapid Communications, 5, 10, October 2011, pp.1123-1129 (2011).

Submitted at: Oct. 5, 2011

Accepted at: Oct. 20, 2011