Analytical and Experimental Investigations on Variable Water Emulsified CI Engine

Abstract

quotDiesel engines surpass gasoline engines in the transportation and power generation sectors due to their superior fuel economy, reliability and dependability. Today, diesel power is inextricably linked to the global economy. Peoples movement, shipment, and territorial accessibility are all important aspects of this interaction. However, these diesel engines are significant contributors to environmental degradation. In addition to environmental challenges, the issue of fossil fuel reserves, which are estimated to last only four decades, is a major concern. As a result, these two critical issues have sparked research interest among researchers all over the world in order to find a solution. newlineSeveral studies have been conducted in order to achieve low emission levels while using less energy in existing diesel engines. These studies are based on preformation and/or post formation emission control measures such as biodiesel, water in diesel (WDE) fuel, particulate filters, catalytic converters etc. out of these techniques, the introduction of WDE has triggered a lot of interest because it promotes better efficiency with low NOx emissions without any additional costs or engine modifications. newlineThe challenges with introducing WDE emulsion fuel into existing diesel engines are maintaining the emulsion fuel quality. In addition, the prolonged ignition delay of WDE fuel leads to greater premixed combustion rate, high heat release rate, and high peak pressure, resulting in rough engine operation and slightly increased HC and CO emissions. newlineEmulsified fuels are the emulsions composed of water and a combustible diesel fuel. In this work, the performance of an engine together with its effect on environment are tested when engine powered by both pure diesel and emulsified fuel with various quantities of water content in the diesel fuel. The physical properties of stable water-diesel emulsions such as density, viscosity and pour point are being observed. The aim of this work is to study and analyze the performance characteristic