Karakteristik Pembakaran Droplet dengan Variasi Komposisi Campuran Bensin - Etanol


  • Arwin Arwin Universitas Brawijaya
  • Lilis Yuliati Universitas Brawijaya
  • Agung Sugeng Widodo Universitas Brawijaya




Droplet Combustion Characteristics, Gasoline, Ethanol


The objective of this research is to investigate the droplet combustion characteristics of gasoline-ethanol fuel blended. The combustion characteristics included ignition delay time, burning lifetime, burning rate constant, flame height, flame temperature, and microexplosion. Testing was conducted using fuel blended with ethanol percentage of 0%(E0), 10%(E10), 20% (E20), 30% (E30) and 100% (E100). The fuel was dripped on the tip of the thermocouple junction and ignited using a torch of a butane-air mixture on a cylindrical burner. The results showed that the ignition delay time increase with the increase of ethanol percentage due to its high latent heat of evaporation and flash point temperature. However, flame temperature decrease with the increase of ethanol percentage due to the lower heat release rate of the mixture, related to the lower heating value of ethanol, and the burning rate constant of the fuels were not different significantly. The droplet diameter of the E100 (pure ethanol) decrease according to the d2–law, but the droplet diameters of the E0, E10, E20, and E30 changed drastically, exhibiting expansion and shrinkage. The Combustion of E20 fuel droplet has the highest burning rate constant, and flame height due to the oxygen content in ethanol can accelerate the combustion reaction and the fastest fuel droplet evaporates and diffuses into the air. Besides, the combustion of the E20 fuel droplet has the lowest burning lifetime due to the intensity of the microexplosion often makes the fuel droplet break into small droplets, which helps accelerate the process of evaporation and mixing of fuel with air, so that the combustion reaction occurs faster. Microexplosionphenomenon also identified due to the difference between the boiling point temperature gasoline and ethanol.



U.S EIA (Energy Information Administration)., “International Energy Outlookâ€, https://www.eia.gov/outlooks/steo/report/global_oil.php. Diakses: Februari 2019.

THANGAVELU, S.K., AHMED, A.S., ANI, F.N., “Review on bioethanol as alternative fuel for spark ignition enginesâ€, Science Direct Journal Renewable and Sustainable Energy Reviews, v. 56, n. 1, pp. 820-

, April 2016.

ZABED, H., SAHU, J.N., SUELY, A., BOYCE, A.N., FARUQ, G., “Bioethanol production from renewable sources: Current perspectives and technological progressâ€, Science Direct Journal Renewable and Sustainable Energy Reviews, v. 71, n. 1, pp. 475-501, Mei 2017.

SINGH, P.A., RAMADHAS, R., MATHAI, A., SEHGAL, “Investigation on combustion, performance and emissions of automotive engine fueled with ethanol-blended gasolineâ€, SAE Internasional Journal of Fuels and Lubricants, v. 9, n. 1, pp. 215–223, April 2016.

IODICE, P., LANGELLA, G., AMORESANO, A., “Ethanol in gasoline fuel blends: effect on fuel consumption and engine out emissions of SI engines in cold operating conditionsâ€, Science Direct Journal Applied Thermal Engineering, v. 130, n. 1, pp. 1081–1089, Februari 2018.

HUANG, Y., HONG, G., “Investigation of the effect of heated ethanol fuel on combustion and emissions of an ethanol direct injection plus gasoline port injection (EDI+GPI) engineâ€, Science Direct Journal Energy Conversion and Management, v. 123, n. 1, pp. 338–347, September 2016.

RAO, D.C.K., Syam, S., Karmakar, S., Joarder, R., “Experimental investigations on nucleation, bubble growth, and microexplosion characteristics during the combustion of ethanol/Jet A-1 fuel dropletsâ€, Science Direct Journal Experimental Thermal and Fluid Science, v. 89, n. 1, pp. 284–294, Desember 2017.

YANG, S.I. dan Wu, M.S., “The droplet Combustion and thermal characteristics of pinewood bio-oil from slow pyrolysisâ€, Science Direct Journal Energy, v. 141, n. 1, pp. 2377–2386, November 2017.

QIAN, Y., LIU, G., GUO, J., ZHANG, Y., ZHU, L., LU, X., “Engine performance and octane on demand studies of a dual fuel spark ignition engine with ethanol/gasoline surrogates as fuelâ€, Science Direct Journal Energy Combustion and Management, v. 183, n. 1, pp 296-306, Maret 2019.

YUSUF, A.A. & INAMBAO, F.L., “Bioethanol production from different Matooke peels species: A surprising source for alternative fuelâ€, Science Direct Journal Case Studies in Thermal Engineering, v. 13, n. 1, pp. 1–10, Maret 2019.

CAPATANO, F., SEMENTA, P., VAGLIOCE, B.M., “Air-fuel mixing and combustion behavior of gasoline-ethanol blends in a GDI wall-guided turbocharged multi-cylinder optical engineâ€, Science Direct Journal Renewable Energy, v. 96, n. 1, pp. 319-332, Oktober 2016.

SHINGO, J., XIA, J., GANIPPA LC., MEGARITIS, A., “Physics of pufï¬ng and micro explosion of emulsion fuel dropletsâ€, In: Physics of Fluids 26, 103302-22, AIP Publishing, Oktober 2014.

SHAHIR, S.A., et al., “Feasibility of diesel-biodiesel-ethanol/bioethanol blend as existing CI engine fuel: An assessment of properties, material compatibility, safety and combustionâ€, Science Direct Journal Renewable and Sustainable Energy Reviews, v. 32, n. 1, pp. 379-395, April 2014.

MISBACHUDIN., YULIATI, L., NOVAREZA, O., “Pengaruh persentase biodiesel minyak nyamplung-solar terhadap karakteristik pembakaran dropletâ€, Jurnal Rekayasa Mesin, v. 8, n. 1, pp. 9-14, Mei 2017.

IODICE, P., SENATORE. A,.LANGELLA. G,. AMORESANO, A., “Effect of ethanol–gasoline blends on CO and HC emissions in last generation SI engines within the cold-start transient: An experimental investigationâ€, Science Direct Journal Applied Energy, v. 179, n. 1, pp. 182-190, Oktober 2016.

RAJA, A.S., A., ARASU, A.V., SORNAKUMAR, T., “Effect Of Gasoline - Ethanol Blends on Performance and Emission Characteristics Of A Single Cylinder Air Cooled Motor Bike Si Engineâ€, Journal of Engineering Science and Technology, v. 10, n. 12, pp. 1540-1552, Maret 2015.

BINDAR, Y., “Tinjauan penggunaan air teremulsi dalam minyak bakar sebagai bahan bakar industri dan mesin diesel: Apakah menguntungkan atau merugikan dan apa permasalahan standarisasinya?â€, In: Temu Karya Uji Profisiensi Laboratorium BBM, Pelumas, dan Gas, Bandung, 21-22 Oktober 2015.

SARATHY, S.M., KUKKADAPU, G., MEHL, M., WANG ,W., JAVED, T., PARK, S., MATTEW, A., OEHLSCHLAEGER., FAROOQ, A., WILLIAM, J.P.,SUNG, J., “Ignition of alkane-rich FACE gasoline fuels and their surrogate mixturesâ€, Science Direct Proceedings of the Combustion Institute, v. 35, n. 1, pp. 249-257, Juli 2015.




How to Cite

Arwin, A., Yuliati, L., & Widodo, A. S. (2020). Karakteristik Pembakaran Droplet dengan Variasi Komposisi Campuran Bensin - Etanol. Jurnal Rekayasa Mesin, 11(1), pp. 1–9. https://doi.org/10.21776/ub.jrm.2020.011.01.1