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Keywords

Dual-alcohol blend, engine performance, emission characteristics, iso-butanol additive, heat of evaporation

Document Type

Research Article

Abstract

Nowadays, alternative fuels for internal combustion engines (IC) have gained traction due to environmental concerns and the necessity to reduce reliance on fossil fuels. Iso-butanol is an alternative fuel with low emissions that can be used in IC engines. The performance and emissions of a single-cylinder spark-ignition (SI) engine running on pure gasoline and iso-butanol additives (iB) at various engine load and blending ratios of EM10, EM10iB3, EM10iB5, and EM10iB10 were investigated experimentally in existing dual ethanol-methanol-gasoline blended fuel (EM10). The calorifc value of the fuel sample containing iso-butanol additive is 6.3% higher than that of the EM10 blended fuel. As per engine performance and emissions, iso-butanol additive blended fuel had a better brake power than the EM10 blended fuel, with a mean increase of 3.1%, 1.2%, and 3.8% for the EM10iB3, EM10iB5, and EM10iB10, respectively. The EM10iB5 signifcantly increased brake thermal efciency (BTE) by 5.4% higher than EM10 blended fuel. The CO and HC emissions from iso-butanol additive blends were reduced by 1.8% and 7.1%, respectively, compared to EM10 blended fuel. When combined with existing lower ratios of EM10 blended fuel, the iso-butanol additive is found to be a viable alternative fuel for SI engines.

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Publication Date

30-9-2022

First Page

2

Last Page

14

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