A modelling and analysis of exhaust gas recirculation system to lower the NOx emission from internal combustion engine: a review on advanced and novel concepts Online publication date: Wed, 28-Feb-2018
by Zulfukar Ali Ahmed; Dinesh Kumar Sharma
International Journal of Renewable Energy Technology (IJRET), Vol. 9, No. 1/2, 2018
Abstract: Internal combustion (IC) engines emit harmful gases such as HC, CO2, and NOx, etc. Search is on for better alternatives to the fossil fuels and engine modifications are also being tried to lower the harmful emissions. NOx is very toxic gas and is responsible for very horrible effects such as acid rain, water quality deterioration, ground level ozone, and visibility impairment. Uses of vegetable oil as fuel, water injection, exhaust gas recirculation (EGR) and after treatment technique are the basic ways to minimise the NOx. EGR technique is worldwide opted technique to reduce the NOx emission by diluting fresh charge with recirculation of some amount of exhaust gas. In this review, modelling and analysis of different types of EGR have been reported and compared. Out of them, analytical results favour the use of long route (LR) EGR over short route (SR) EGR.
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