• I Made Suarta Teknik Mesin, Politeknik Negeri Bali
  • I Putu Gede Sopan Rahtika Teknik Mesin, Politeknik Negeri Bali
  • Putu Wijaya Sunu Teknik Mesin, Politeknik Negeri Bali
  • Ketut Bangse Teknik Mesin, Politeknik Negeri Bali
  • I Nengah Teknik Mesin, Politeknik Negeri Bali
Keywords: anhydrous ethanol, fuel, ethanol, hydrous ethanol, engine performance


In this study observed the role of molecular clustering on engine performance produced by hydrous ethanol fuel (95.5% v). The test was performed using variation load for four-cylinder motor. Engine performance is measured using Brake Power Engine load cell type indicator TD 800PM. The engine performance produced by anhydrous ethanol was also tested. The resulting engine performance of both fuels is compared. The results showed that the power produced by hydrous ethanol was slightly higher than that of anhydrous ethanol. The charging effisiency generated by hydrous ethanol is upper than that of anhydrous ethanol.


[1] Awad, Omar I., Mamat, R., Ali Obed M., Sidik N.A.C., Yusaf, T., Kadirgama K.& Maurice Kettner. (2018). Alcohol and ether as alternative fuels in spark ignition engine. Renewable and Sustainable Energy Reviews.
[2] Suarta I Made; Baliarta I Nyoman Gede; Rahtika I.P.G. Sopan & Sunu Putu Wijaya . (2017). The Role of Hydrogen Bonds Of The Azeotropic Hydrous Ethanol Fuel Composition To The Exhaust Emissions. IOP Conf. Series: Journal of Physics: Conf. Series 953
[3] Sathaporn Chuepeng; Sudecha Srisuwan & Manida Tongroon. (2016) Lean hydrous and anhydrous bioethanol combustion in spark ignition engine at idle. Energy Conversion and Management 128 (2016) 1–11
[4] Suarta I Made; Wardana I. N. G.; Hamidi Nurkholis & Wijayanti Widya. (2016) The Role of Molecule Clustering by Hydrogen Bond in Hydrous Ethanol on Laminar Burning Velocity. Journal of Combustion. Article ID 5127682, 9 pages.
[5] Fagundez J.L.S.; Sari R.L.; Mayer F.D.; Martins M.E.S.& Salau N.P.G. (2016). Determination of optimal wet ethanol composition as a fuel in spark ignition engine. Applied Thermal Engineering
[6] Thompson Diórdinis Metzka Lanzanova; Macklini Dalla Nora & Hua Zhao. (2016) Performance and economic analysis of a direct injection spark ignition engine fueled with wet ethanol. Applied Energy 169 (2016) 230–239
[7] Breaux Baine B.& Sumanta Acharya. (2013). The effect of elevated water content on swirl-stabilized ethanol/air flames. Fuel 105 (2013) 90–102.
[8] Yusri I.M.; Mamat R.; Najafi G.; Razman A.; Awad Omar I.; Azmi W.H.; Ishak W.F.W.& Shaiful A.I.M. (2017). Alcohol based automotive fuels from first four alcohol family in compression and spark ignition engine: A review on engine performance and exhaust emissions. Renewable and Sustainable Energy Reviews 77 (2017) 169–181
[9] Morganti Kai; Almansour Mohammed; Khan Ahmad; Kalghatgi Gautam & Przesmitzki Steven. (2018). Leveraging the benefits of ethanol in advanced engine-fuel systems. Energy Conversion and Management 157 (2018) 480–497
[10] Schifter I.; Diaz L.; Gómez J.P.& Gonzalez U.(2013). Combustion characterization in a single cylinder engine with mid-levels hydrated ethanol–gasoline blended fuels. Fuel 103 (2013) 292–298
[11] Suarta I Made; Wardana I. N. G.; Hamidi Nurkholis & Wijayanti Widya. (2016). The Role of Hydrogen Bonding on Laminar Burning Velocity of Hydrous and Anhydrous Ethanol Fuel with Small Addition of n-Heptane. Journal of Combustion Volume 2016, Article ID 9093428, 8 pages
[12] Munsin R.;Laoonual Y.; Jugjai S.;, Imai Y. (2016). An experimental study on performance and emissions of a small SI engine generator set fuelled by hydrous ethanol with high water contents up to 40%. Fuel 106 (2013) 586–592