An Experimental Study on the Effects of Bioethanol-Unleaded Gasoline Blends on Engine Performance in a Spark Ignition Engine

In the present study, the effects of bioethanol-unleaded gasoline blends on engine performance were investigated in a spark ignition engine. Fuel containing 100% ethanol (E100), fuel blend containing 40% bioethanol by volume (E40) and 100% unleaded gasoline (E0) were tested and the test results were compared. As the result of the study, it was found that the use of unleaded gasoline and bioethanol-unleaded gasoline blends as fuel did not cause a significant change in engine performance. The results of the engine tests showed that the use of unleaded gasoline-bioethanol blends as fuel caused a decrease in engine torque and engine power depending on the increase in the ratio of bioethanol in the fuel blend. As the result of these decreases, increases of up to 30% were observed in the specific fuel consumption of the engine.

• A. Engin Özçelik
• Hasan Aydoğan
• Mustafa Acaroğlu

• Bioetanol
• engine performance
• unleaded gasoline.

[1] D. Hansdah, S. Murugan, L.M. Das, Experimental Studies On A DI
Diesel Engine Fueled With Bioethanol-Diesel Emulsions, Alexandria
Engineering Journal, In Press, Corrected Proof, Available online 1 July
2013
[2] A. Kuruvilla Mathew, M. Crook, K. Chaney, A.C. Humphries,
Comparison Of Entrapment And Biofilm Mode Of İmmobilisation For
Bioethanol Production From Oilseed Rape Straw Using Saccharomyces
Cerevisiae Cells, Biomass and Bioenergy, Volume 52, May 2013, Pages
1-7
[3] H. Kim, B.lChoi, The Effect Of Biodiesel And Bioethanol Blended
Diesel Fuel On Nanoparticles And Exhaust Emissions From CRDI
Diesel Engine, Renewable Energy, Volume 35, Issue 1, January 2010,
Pages 157-163
[4] S.H. Yoon, C. Sik Lee, Effect Of Undiluted Bioethanol On Combustion
And Emissions Reduction In A SI Engine At Various Charge Air
Conditions, Fuel, Volume 97, July 2012, Pages 887-890
[5] S.H. Park, J. Cha, Chang S. Lee, Impact Of Biodiesel In Bioethanol
Blended Diesel On The Engine Performance And Emissions
Characteristics İn Compression İgnition Engine, Applied Energy,
Volume 99, November 2012, Pages 334-343
[6] I. Barabás, A. Todoruţ, D. Băldean, performance And Emission
Characteristics Of An CI Engine Fueled With Diesel–Biodiesel-
Bioethanol Blends, Fuel, Volume 89, Issue 12, December 2010, Pages
3827-3832
[7] E. Torres-Jimenez, M.P. Dorado, B. Kegl, Experimental Investigation
On Injection Characteristics Of Bioethanol–Diesel Fuel Ana
Bioethanol–Biodiesel Blends, Fuel, Volume 90, Issue 5, May 2011,
Pages 1968-1979
[8] H. Aydogan, An Experimental Study of the Effects of Bioethanol-
Unleaded Gasoline Blends on Engine Performance and Emissions,
Energy Education Science and Technology, Volume 28, Issue 2, January
2012, Pages 623-630