THERMAL SCIENCE
International Scientific Journal
A COMPREHENSIVE NUMERICAL STUDY OF THE ETHANOL BLENDED FUEL EFFECT ON THE PERFORMANCE AND POLLUTANT EMISSIONS IN SPARK-IGNITION ENGINE
ABSTRACT
In the present work, the performance and pollutant emissions in a spark ignition engine has been numerically investigated. For this purpose, the coupled KIVA code with CHEMKIN is used to predict the thermodynamic state of the cylinder charge during each cycle. Computations were carried out for a four cylinder, four strokes, multi point injection system (XU7 engine). Numerical cases have been performed up to 30% vol. of ethanol. Engine simulations are carried out at 2000, 2500 and 3000 rpm and full load condition. The numerical results showed that pollutant emissions reduce with increase in ethanol content. Based on engine performance, the most suitable fraction of ethanol in the blend was found to be nearly 15% for the XU7 engine.
KEYWORDS
PAPER SUBMITTED: 2012-10-05
PAPER REVISED: 2013-03-31
PAPER ACCEPTED: 2013-06-05
PUBLISHED ONLINE: 2013-07-06
THERMAL SCIENCE YEAR
2014, VOLUME
18, ISSUE
Issue 1, PAGES [29 - 38]
- Bayraktar, H., Experimental and theoretical investigation of using gasoline-ethanol blends in sparkignition engines, Renewable Energy, 2005, 30(11), 1733-1747.
- Al-Baghdadi, M.A.R., A simulation model for a single cylinder four-stroke spark ignition engine with alternative fuels, Turkish Journal of Engineering and Environmental Science, 2006, 30, 331-350.
- Balki, M.K., Sayin, C., Canakci, M., The effect of different alcohol fuels on the performance, emission and combustion characteristics of a gasoline engine, Fuel, 2012.
- Wu, C.-W., Chen R.-H., Pu, J.-Y., Lin, T.-H., The influence of air-fuel ratio on engine performance and pollutant emission of an SI engine using ethanol-gasoline-blended fuels, Atmospheric Environment, 2004, 38(40), 7093-7100.
- Yücesu, H.S., Topgül, T., Çinar, C., Okur, M., Effect of ethanol-gasoline blends on engine performance and exhaust emissions in different compression ratios, Applied Thermal Engineering, 2006, 26(17-18), 2272-2278.
- Ceviz, M.A., Yüksel, F., Effects of ethanol-unleaded gasoline blends on cyclic variability and emissions in an SI engine, Applied Thermal Engineering, 2005, 25(5-6), 917-925.
- Al-Hasan, M., Effect of ethanol-unleaded gasoline blends on engine performance and exhaust emission, Energy Conversion and Management, 2003, 44(9), 1547-1561.
- He, B.-Q., Jian-Xin, W., Hao, J.-M., Yan, X.-G., Xiao, J.-H., A study on emission characteristics of an EFI engine with ethanol blended gasoline fuels, Atmospheric Environment, 37 (2003), 7, pp. 949-957.
- Stojiljkovi, D.D., Nestorovi, D.B., Jovanovi, V.V., Mani, N.G., Mixtures of bioethanol and gasoline as a fuel for SI engines, Thermal science, 2009, 13, 219-228.
- Altun, S., Öztop, H.F., Öner C., Varol. Y., Exhaust emissions of methanol and ethanol-unleaded gasoline blends in a spark ignition engine, Thermal science, 2012.
- Bayraktar, H., Theoretical investigation of flame propagation process in an SI engine running on gasoline-ethanol blends, Renewable Energy, 2007, 32(5), 758-771.
- Abdel-Rahman, A.A., Osman, M.M., Experimental Investigation on varying the compression ratio of SI engine working under different ethanol-gasoline fuel blends, International Journal of Energy Research,1997, 21(1), 31-40.
- Celik, M.B., Experimental determination of suitable ethanol-gasoline blend rate at high compression ratio for gasoline engine, Applied Thermal Engineering, 2008, 28(5-6), 396-404.
- Lin, W.Y., Chang, Y.Y., Hsieh, Y.R., Effect of ethanol-gasoline blends on small engine generator energy efficiency and exhaust emission, Journal of the Air & Waste Management Association, 2010, 60(2), 142-148.
- Torres, D.J., KIVA-4 Manual, Los Alamos National laboratory Theoretical division, 2006
- O'Rouke, P.J., Collective drop effects on vaporizing liquid sprays, Ph.D. Thesis, Princeton University, 1981.
- Amsden, A.A., O'Rouke, P.J., Butler, T.D., KIVA-II- A computer program for chemically reactive flows with sprays, Los Alamos National Lab., LA-11560-MS, 1989.
- Torres, D.J., O'Rouke, P.J., Amsden, A.A., A discrete multicomponent fuel model, Atomization and Sprays, 2003, 13(2&3), 42.
- Torres, D.J., O'Rouke, P.J., Amsden, A.A., Efficient multicomponent fuel algorithm, Combustion Theory and Modeling, 7 (2003), 1, pp. 66-86.
- Kong, S.C., Reitz, R.D., Use of detailed chemical kinetics to study HCCI engine combustion with consideration of turbulent mixing effects, Journal of Engineering for Gas Turbines and Power, 2002, 124(3), 702-707.
- Ra, Y., Reitz, R.D., A combustion model for IC engine combustion simulations with multicomponent fuels, Combustion and Flame, 2011, 158(1), 69-90.
- Ferguson, C.R., Kirkpatrick, A.T., Internal combustion engines: applied thermoscience. 2nd ed, John Wiley and Sons, Inc., 2001.
- Daniel, R., Tian, G., Xu, H., Wyszynski, M.L., Wu, X., Huang, Z., Effect of spark timing and load on a DISI engine fuelled with 2,5-dimethylfuran, Fuel, 2011, 90(2), 449-458.
- H. J.A., S. R.C., A single-cylinder engine study of the effects of fuel type, fuel stoichiometry, and hydrogen-to-carbon ratio and CO, NO, and HC exhaust emissions, SAE 730476, 1973.