The Influence of Hexanol and Methyl Acetate as Oxygenated Additives with Diesel Fuel in a Diesel Engine Generator

Abstract

Diesel engines play a vital role in all the major sectors (such as transportation and industrial) due to their high efficiency, durability, reliability and low operating cost. At the same time, they are considered as one of the biggest contributors of environmental pollution by releasing enormous amount of toxic gases to atmosphere (such as NOx, HC, CO2 and PM). Emissions from transport, especially motor vehicles, increase the level of gases in the atmosphere. Due to these problems, many researchers have put their efforts and carried out several experiments to curtail harmful emissions from diesel engines. In present work, oxy additive chemicals (such as Hexanol and Methyl Acetate) are blended with pure diesel in specific proportions to run in a diesel engine generator. The whole experimentation was conducted in six stages. In the first stage, critical information collection of oxy-additive chemicals was carried out. In second stage, blending of selected oxy-additive chemicals with pure diesel was carried out in different proportions (like 95D5H, 90D10H, 85D15H, 80D20H, 95D2.5H2.5MA, 90D5H5MA, 85D7.5H7.5MA, 80D10H10MA). In the third stage, the prepared blended fuels were subjected for stability investigations. In the fourth stage, the prepared stable fuels were subjected for testing the fuel properties (such as flash point, fire point, density, kinematics viscosity). In the fifth stage, performance and emissions attributes of diesel engine was studied using pure diesel (for reference). Finally, in the sixth stage, the performance and emissions attributes of diesel engine was investigated using the above prepared stable fuels by varying the engine load (from 1000W to 4000W). The experiment results revealed a sharp reduction in the harmful gases for the prepared fuels compared to that of neat diesel. Also, the hexanol and methyl acetate blended fuels revealed a better performance characteristic than that of neat diesel.