Acta Univ. Agric. Silvic. Mendelianae Brun. 2016, 64(4), 1205-1210 | DOI: 10.11118/actaun201664041205

Reduction of NOx Emission of a Diesel Engine with a Multiple Injection Pump by SCR Catalytic Converter

Vít Marek, Lukáš Tunka, Adam Polcar, Dušan Slimařík
Department of Technology and Automobile Transport, Faculty of AgriSciences, Mendel University in Brno, Zemědělská 1, 613 00 Brno, Czech Republic

This paper deals with reduction of NOx-emission of a diesel engine with multiple injection pump by SCR catalytic converter. Main aim of the measurement was the detection of SCR catalyst converter efficiency. Tests were realized at the Research and Development workplace of Zetor Tractor a.s. Used engine was equipped with a multiple injection pump with electromagnetic regulator of a fuel charge. During the experiment selective catalytic reduction and diesel particulate filter were used as an after treatment of harmful pollutants reduction. Testing cycle of the eight-point test was chosen and Non-Road Steady Cycle (NRSC) was maintained according to 97/68/EC directive. Results confirmed the dependencies between temperatures of SCR catalyst and exhaust gases and the volume of exhaust gases on efficiency of SCR catalyst. During the operation load of the engine, selective catalytic reduction reached efficiency over 90 %. Used after treatment system is suitable for reduction of harmful pollutants according to the Tier 4f norm.

Keywords: SCR catalytic converter, reduction efficiency, temperature of exhaust gases
Grants and funding:

This study was financed by the project of Internal Grant Agency of Mendel University in Brno, IP 35/2015: "Application of wireless communication protocols in system on-board vehicle diagnostics".

Prepublished online: August 30, 2016; Published: September 1, 2016  Show citation

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Marek, V., Tunka, L., Polcar, A., & Slimařík, D. (2016). Reduction of NOx Emission of a Diesel Engine with a Multiple Injection Pump by SCR Catalytic Converter. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis64(4), 1205-1210. doi: 10.11118/actaun201664041205
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