Diesel Combustion Characteristics of 2-Butanol/Gas Oil and Isobutanol/Gas Oil

Abstract

In order to utilize bio-butanol as an alternative diesel fuel, three blend fuels of gas oil and butanol isomers (1-butanol, 2-butanol and isobutanol) were investigated using a single cylinder DI diesel engine for the ignitability, combustion characteristics and exhaust emissions. For the three blends, butanol content is 40 mass%. The experimental result shows that in order of 1-butanol/gas oil, 2-butanol/gas oil and isobutanol/gas oil the ignition delay becomes longer and the HC and CO emissions increase at low load.