Experimental Study of Exhaust Manifold Water Injection on Emission of CI Engine Fueled with Madhuca Longifolia and Diesel Blends

Abstract

Nitrogen dioxide (NO₂) is the ubiquitous chemical structure of NO_x in the ambience that is initiated by anthropogenic (human) acts. NO₂ is also reacts in the surrounding to result in ozone (O₃) and the main culprits for acid rain. Captured proportion of NO_x by moisture forms acid rain. Acid rain severely affects certain ecosystems. The facts mentioned indicate necessity to reduce NO_x pollution. When any of these oxides disintegrate in H₂O and breakup, they result in nitric acid (HNO₃) or nitrous acid (HNO₂). Automobiles is one of the major sources of the NO_x that is emitted. Here in this experimental based research effort has been made to reduce emissions of NO_x and CO emitted by the diesel based engine powered by Madhuca longifolia as a biodiesel blended with diesel (B10, B20, B30) by injecting water after exhaust gas manifold to get reaction so as oxides disintegrate in H₂O and breakup, they result in nitric acid (HNO₃) or nitrous acid (HNO₂). Experimental work conducted on Mono-cylinder CRDI engine. Trials were taken with different blends of Madhuca longifolia by setting CR 15,16, 17 and 18 with water injected at 3 different mass flow rates (38.7, 82.7, 130.4 CC/min). Results shows average reduction in NO_x by 7.89%, 12.26%, and 17.73% respectively.