Title: Comprehensive investigation of using n-butanol/gasoline blends in a port-fuel injection spark-ignition engine

Authors: Murat Kadir Yesilyurt; Hayri Yaman

Addresses: Department of Mechanical Engineering, Faculty of Engineering-Architecture, Yozgat Bozok University, 66200, Yozgat, Turkey ' Department of Automotive Technology, Kırıkkale Vocational School, Kirikkale University, 71450, Kirikkale, Turkey

Abstract: In this study, butanol was examined mixing with gasoline at different ratios (Bu0, Bu5, Bu10, Bu20, and Bu30) in a single-cylinder, four-stroke, PFI SI engine for monitoring engine characteristics at various loads to perform thermodynamic analyses. It can be reported that the maximum efficiencies were calculated at the highest load for tested fuels. Accordingly, the maximum thermal efficiencies were computed to be between 35.85%-40.60% meanwhile corresponding exergetic efficiency results were found to be between 33.33%-37.85% for tested fuel samples. In addition, the maximum SIN values were achieved between 1.500-1.609.

Keywords: butanol; economic; emissions; exergy; higher alcohol; performance; sustainability.

DOI: 10.1504/IJEX.2022.10043776

International Journal of Exergy, 2022 Vol.37 No.1, pp.1 - 23

Received: 14 Oct 2020
Accepted: 16 Feb 2021

Published online: 07 Jan 2022 *

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