Study on the Greenhouse Gases Generated by the Direct Injection Diesel Engines Running on Biodiesel

Abstract

The formation of CO 2 emissions is largely dependent on the carbon content of the fuel used in diesel engines and on the fuel consumption. The mixture of biodiesel in fossil fuels is in line with most of the research presented in the specialty literature, a method of reducing CO 2 emissions from diesel engines. Due to these controversies on the obtained results, the research of the biodiesel effects blended with fossil fuels is still a matter of study. Therefore, a laboratory study has been conducted on a naturally aspirated 4-stroke diesel engine, using different mixtures (10, 15, 20, 25, 30, 40 and 50%) of diesel with biodiesel produced from oil rape. The results of the study revealed the fact that CO 2 emissions of the blends used are lower than the same emissions produced when powering the engine with diesel fuel. Furthermore, of all blends used in the study, the 15% biodiesel mixture in diesel fuel was marked by a major decrease of CO 2 emissions and of specific fuel consumption.

A comprehensive review on the use of biodiesel for diesel engines

“…One of the biggest differences between biodiesel and diesel fuel is the oxygen content (Coşofreţ et al, 2016). While the oxygen content of diesel is very low or even absent, biodiesel is an oxygen-rich fuel.…”

“…With the ever-increasing energy demand and political instability directly affecting the supply stability of fossil fuels, the development and utilization of biodiesel becomes more relevant than ever (Coşofreţ et al, 2016). The diversity in production inputs, coupled with the fact that it has been shown to significantly reduce greenhouse gas emissions, which has been a sore point in recent years, creates extremely favorable conditions for biodiesel to compete with fossil fuel sources.…”