Biodiesel Effects on the Emissions and the Performance of the Engine - A Review

Abstract

In the last 15 years, biodiesel instead of diesel has been progressively used to examine its impact on engine performance and emissions as a renewable, sustainable, and alternative fuel for compression ignition engines. Saturated and unsaturated long-chain fatty acid alkyl esters make up biodiesel, which is made through the transesterification of vegetable oils or animal fats. Engine manufacturers are concerned about the particles created by diesel and spark-ignition engines because they affect engine performance and wear, as well as their environmental effect. Despite certain application issues, it is now widely regarded as one of the most promising alternative fuels for internal combustion engines. The purpose of this study is to conduct a full assessment of engine performance and emissions using biodiesel derived from various feedstocks and compare them to diesel. According to the findings, using biodiesel results in significant reductions in PM, HC, and CO emissions, as well as undetectable power loss, increased fuel consumption, and increased NOx emissions on conventional diesel engines with no or little modifications. However, many more studies on engine modifications, low-temperature engine performance, new instrumentation and measuring technique, and so on are recommended when utilizing biodiesel as a diesel alternative.