NO_x Pollutants from Diesel Vehicles and Trends in the Control Technologies

Abstract

Nowadays, climate change that caused from air pollution has become a major problem on the agenda of almost all countries around the world. Compared to other air pollutants, NO x emissions have an important share in climate change, and especially diesel vehicles are one of the most important sources for the formation of NO x pollutants. This chapter focused on NO x emissions from diesel vehicles and the trends in NO x control technologies; Exhaust Gas Recirculation (EGR), Lean NO x trap (LNT) and Selective Catalytic Reduction of NO x by ammonia (NH 3-SCR) and hydrocarbons (HC-SCR). The reasons of the NO x emissions, environmental effects and damages on human health, NO x emissions from diesel engines and diesel engine parameters affecting NO x emissions are handled in detail. The EGR, LNT and SCR technologies that had large reduction rates of NO x emissions and the latest developments in these systems are comprehensively explained.

Low-Temperature Combustion in Diesel Engines

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Improving environmental conditions of a Room and Pillar underground quarry using numerical modelling of the ventilation system

“…To evaluate the quantity and type of exhaust gases of Diesel machines, it is necessary to consider the type of engine, the available safety devices (such as the diesel oxidation catalysts – DOC and the selective catalytic reducer – SCR), the operating conditions of the machine and the quality of the maintenance performed. It is now possible to obtain an estimate of the average composition of the exhaust gases of modern (Euro V) diesel engines used in mines, on the basis of studies by different authors (Majewski and Khair 2006; Zapletal et al 2014; Reif 2015; Reşitoğlu 2018) (volumetric concentrations): N 2 : 70–80%; CO 2 : 6–18%; CO: 0.015–0.060% (150–600 ppm); NO x : ≈ 0.10% (1000 ppm); H 2 O: 10–15%; O 2 : 3–15%.…”

Effects of biodiesel usage on mechatronic components in automobiles with diesel engine: A review

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