An Experimental Study using Diesel Additives to Examine the Combustion and Exhaust Emissions of CI Engines

Abstract

A single-cylinder diesel engine is used for an experimental inquiry utilizing diesel fuel (Di) and two different improver types: diethyl ether (DE) and bael oil (BO). The purpose of this research is to enhance fuel quality for improved engine efficiency in reduced emissions from engines by using diethyl ether and Bael oil. The fuel's cetane number was tested after 15% bael oil and 10% diethyl ether were added to commercial diesel. In order to assess engine performance and emissions, engine tests were conducted with the three fuels at progressively higher speeds, without load, and in the 1000–2500 RPM range with 250 RPM steps. The study's findings indicate that using diethyl ether and bael oil, respectively, improved the fuel cetane number from 48 to 52 and 54. Additionally, a notable rise in engine efficiency by 9.9% and 17.6% and a notable increase in engine brake power by approximately 15.9% and 26.8%, respectively, had been observed for the entire engine speed. At low and medium engine speeds, there was a notable decrease in specific fuel consumption of 19.7% and 36.6%, respectively. Furthermore, compared to commercial diesel, a discernible decrease in emissions has been noted for CO of 15.3% and 29.8%, CO₂ of 9.2% and 24.2%, and HC of 13% and 24.4%, respectively. Thus, it can be concluded that if you want to improve engine performance and lower exhaust emissions, you can use diethyl ether as a fuel additive with commercial diesel.