Performance and emissions assessment of a spark-ignition engine fueled with ethanol-, methanol- and acetone-gasoline blends

Mehrez Gassoumi; Fakher Hamdi; Zouhaier Boutar; Mahdi Dhawi; Zouhaier Khalfet; Aliya Fazal; Raja Mazuir Raja Ahsan Shah; Ridha Ennetta; Hakan Serhad Soyhan

doi:10.14744/thermal.0000964

Performance and emissions assessment of a spark-ignition engine fueled with ethanol-, methanol- and acetone-gasoline blends

Abstract

Alternative fuels have the potential to reduce exhaust emissions in the transportation sector. This research investigates the use of oxygen-enriched fuel mixtures as practical alternatives to pure gasoline in spark-ignition engines. Unlike previous studies that only focused on individual or paired oxygenated fuel comparisons, this study analyzes simultaneously three oxygenated fuels (ethanol, methanol, and acetone) at identical blending ratios. Experiments were performed with an engine testing rig under full load conditions at varying engine speeds. The tested fuel blends included pure gasoline and blends, with 10% ethanol, acetone, and methanol by volume. The results indicated that all the tested fuel blends led to slight improvements in engine performance. The methanol blend provided the highest increases in brake torque, power, and mean effective pressure, with enhancements of up to 19%. Meanwhile, the ethanol blend notably enhanced fuel consumption and thermal efficiency by 25% and 40%, respectively. Regarding the exhaust emissions, it was observed that all the oxygenated fuel blends reduced the carbon monoxide and carbon dioxide emissions. The best achievement was obtained with the ethanol blend, which reduced carbon monoxide and carbon dioxide emissions by 35% and 15%, respectively. However, nitrogen oxide emissions increased with both alcohol blends. On the other hand, it decreases with the acetone blend across all engine speeds. Thus, this work proposes innovative pure gasoline alternatives that can reduce hazardous emissions without requiring technical interventions or loss in engine power.

Keywords

References

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Details

Primary Language

English

Subjects

Aerodynamics (Excl. Hypersonic Aerodynamics)

Journal Section

Research Article

Authors

Mehrez Gassoumi
0000-0003-4724-6377
Tunisia

Fakher Hamdi
0000-0001-9765-3048
Tunisia

Zouhaier Boutar This is me
0000-0003-0097-0835
Tunisia

Mahdi Dhawi This is me
Tunisia

Zouhaier Khalfet This is me
0009-0005-2962-0806
Tunisia

Aliya Fazal This is me
0000-0003-4275-1761
Pakistan

Raja Mazuir Raja Ahsan Shah This is me
0000-0002-3408-4391
Qatar

Ridha Ennetta ^*
0000-0002-1646-7145
Tunisia

Hakan Serhad Soyhan
0000-0003-3723-9640
Türkiye

Publication Date

July 31, 2025

Submission Date

June 25, 2024

Acceptance Date

October 4, 2024

Published in Issue

Year 2025 Volume: 11 Number: 4

DOI

https://doi.org/10.14744/thermal.0000964

IZ

https://izlik.org/JA26PW67TM

Cite

RIS / Bibtex

APA

Gassoumi, M., Hamdi, F., Boutar, Z., Dhawi, M., Khalfet, Z., Fazal, A., Shah, R. M. R. A., Ennetta, R., & Soyhan, H. S. (2025). Performance and emissions assessment of a spark-ignition engine fueled with ethanol-, methanol- and acetone-gasoline blends. Journal of Thermal Engineering, 11(4), 970-981. https://doi.org/10.14744/thermal.0000964

AMA

1.Gassoumi M, Hamdi F, Boutar Z, et al. Performance and emissions assessment of a spark-ignition engine fueled with ethanol-, methanol- and acetone-gasoline blends. Journal of Thermal Engineering. 2025;11(4):970-981. doi:10.14744/thermal.0000964

Chicago

Gassoumi, Mehrez, Fakher Hamdi, Zouhaier Boutar, et al. 2025. “Performance and Emissions Assessment of a Spark-Ignition Engine Fueled With Ethanol-, Methanol- and Acetone-Gasoline Blends”. Journal of Thermal Engineering 11 (4): 970-81. https://doi.org/10.14744/thermal.0000964.

EndNote

Gassoumi M, Hamdi F, Boutar Z, Dhawi M, Khalfet Z, Fazal A, Shah RMRA, Ennetta R, Soyhan HS (July 1, 2025) Performance and emissions assessment of a spark-ignition engine fueled with ethanol-, methanol- and acetone-gasoline blends. Journal of Thermal Engineering 11 4 970–981.

IEEE

[1]M. Gassoumi et al., “Performance and emissions assessment of a spark-ignition engine fueled with ethanol-, methanol- and acetone-gasoline blends”, Journal of Thermal Engineering, vol. 11, no. 4, pp. 970–981, July 2025, doi: 10.14744/thermal.0000964.

ISNAD

Gassoumi, Mehrez - Hamdi, Fakher - Boutar, Zouhaier - Dhawi, Mahdi - Khalfet, Zouhaier - Fazal, Aliya - Shah, Raja Mazuir Raja Ahsan - Ennetta, Ridha - Soyhan, Hakan Serhad. “Performance and Emissions Assessment of a Spark-Ignition Engine Fueled With Ethanol-, Methanol- and Acetone-Gasoline Blends”. Journal of Thermal Engineering 11/4 (July 1, 2025): 970-981. https://doi.org/10.14744/thermal.0000964.

JAMA

1.Gassoumi M, Hamdi F, Boutar Z, Dhawi M, Khalfet Z, Fazal A, Shah RMRA, Ennetta R, Soyhan HS. Performance and emissions assessment of a spark-ignition engine fueled with ethanol-, methanol- and acetone-gasoline blends. Journal of Thermal Engineering. 2025;11:970–981.

MLA

Gassoumi, Mehrez, et al. “Performance and Emissions Assessment of a Spark-Ignition Engine Fueled With Ethanol-, Methanol- and Acetone-Gasoline Blends”. Journal of Thermal Engineering, vol. 11, no. 4, July 2025, pp. 970-81, doi:10.14744/thermal.0000964.

Vancouver

1.Mehrez Gassoumi, Fakher Hamdi, Zouhaier Boutar, Mahdi Dhawi, Zouhaier Khalfet, Aliya Fazal, Raja Mazuir Raja Ahsan Shah, Ridha Ennetta, Hakan Serhad Soyhan. Performance and emissions assessment of a spark-ignition engine fueled with ethanol-, methanol- and acetone-gasoline blends. Journal of Thermal Engineering. 2025 Jul. 1;11(4):970-81. doi:10.14744/thermal.0000964