Experimental investigation of argon gas induction on diesel engine performance and emission characteristics: A comprehensive study on de-NOx techniques

Abstract

Abstract Diesel engines are considered as the most efficient type of internal combustion engines that are widely used for transportation and power generation around the world. However, NOx emissions have always been a major concern for the development of clean diesel vehicles. As this is the global byproduct of high temperature combustion, the dwindling of NOx from emissions is required in stationary as well as mobile applications. Induction of argon into the combustion chamber is one of the promising methods to reduce NOx emissions. This paper mainly focuses on the influence of argon atmosphere in diesel engine induction system and its effect on reduction of oxides of nitrogen and carbon dioxide emissions. Experimental investigation has been carried out on a single cylinder diesel engine with varying percentages of argon gas induction from 0 to 12 % in the intake manifold. The results revealed that the induction of argon at different dilution ratios has potential to significantly reduce the formation of carbon dioxide and oxides of nitrogen. It is also observed that, a slight reduction in exhaust gas temperature with no much variation in performance parameters. This paper has also reviewed various de-NOx techniques used for diesel vehicles in detail.