Study on co-combustion of diesel fuel with oxygenated alcohols in a compression ignition dual-fuel engine

摘要: Abstract Alcohol fuels offer opportunities to reduce the use of fossil in CI engines and increase percentage biofuels transport energy sectors, where combustion are often used. This study presents experimental examinations a stationary single-cylinder compression ignition dual-fuel engine based on co-combustion diesel fuel with alcohols. The evaluated effect addition methanol, ethanol, 2-propanol 1-butanol process, performance emissions from research engine. Percentage supplied alcohol was 15, 30, 45, 55 70% total results were compared for fuelled pure as reference. Addition had positive level mean indicated pressure, thermal efficiency stability each 55% during led effective pressure (IMEP) by 22%, (ITE) almost 13% reduction coefficient variation COVIMEP 52%. Of alcohols analysed study, methanol most beneficial terms high efficiency, maximal values IMEP = 0.86 MPa ITE = 35.3% at DM55. nitrogen oxides (by 139% average), decline carbon oxide 45% average) dioxide 17% average). However, it did not lead significant changes hydrocarbons. highest content NOx, CO CO2 exhaust found methanol.