Important Contributions to Reducing Nitrogen Oxide Emissions from Internal Combustion Engines

Daniela Laura Buruiana, Adrian Sachelarie, Claudiu Butnaru and Viorica Ghisman
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Daniela Laura Buruiana: Interdisciplinary Research Centre in the Field of Eco-Nano Technology, Advance Materials CC-ITI, Faculty of Engineering, “Dunarea de Jos” University of Galati, 47 Domneasca, 800008 Galati, Romania
Adrian Sachelarie: Faculty of Mechanical Engineering, “Gheorghe Asachi” Technical University of Iasi, 61–63 Mangeron Blvd, 700050 Iasi, Romania
Claudiu Butnaru: Faculty of Mechanical Engineering, “Gheorghe Asachi” Technical University of Iasi, 61–63 Mangeron Blvd, 700050 Iasi, Romania
Viorica Ghisman: Interdisciplinary Research Centre in the Field of Eco-Nano Technology, Advance Materials CC-ITI, Faculty of Engineering, “Dunarea de Jos” University of Galati, 47 Domneasca, 800008 Galati, Romania

IJERPH, 2021, vol. 18, issue 17, 1-13

Abstract: Nitrogen oxides are considered significant pollutants because of their effects on ecosystems and human health. The amount of NO x emitted by internal combustion engines can be reduced, mostly by acting on the conditions in which combustion takes place, respectively by lowering the peak flame temperature, reducing the excess of oxygen, etc. The homogeneous charge compression ignition (HCCI) engine represents a new technology that can simultaneously reduce NO x emissions and fuel consumption. This article presents these benefits of the HCCI engine by comparing the emissions and fuel consumption of a monocylinder engine when it is operated in a conventional way, with spark ignition, with those obtained when the engine is running in the HCCI mode. Moreover, since engine simulation has become an important tool for investigating the HCCI process and for developing new control strategies for it, this was used in this study to determine the effects of the exhaust gas recirculation on the combustion quality, respectively, on emissions.

Keywords: emissions; risks; combustion dioxide (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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