Authors:
Mohanad Aldhaidhawi,Muneer Naji,Abdel Nasser Ahmed,DOI NO:
https://doi.org/10.26782/jmcms.2020.06.00030Keywords:
LPG and Ethanol fuels,SI engine,Engine performance,Emissions,Abstract
The engine performance, combustion characteristics and exhaust gas emissions of a four-cylinder, four-stroke indirect injection spark ignition engine has been numerically investigated at constant engine speed and different ignition timings when using gasoline, ethanol and LPG fuels. For this purpose, a model has been suggested by using a two-zone burnt and unburnt gas for in-cylinder combustion. The experimental data related to the cylinder pressures have been carried out to validate the engine model. The optimal effective power and effective torque were shown at advanced crank angle degrees before the top dead center. It is observed that the brake specific fuel consumption decreases if the ignition timings increase. The ethanol fuel exhausted a minimum level of carbon monoxide, unburnt hydrocarbon and oxide nitrogen emissions when compared with the gasoline fuel at all operating conditions. LPG fuel produced promising good emission results than that obtains from gasoline fuel.Refference:
I. B. Erkuş, A. Sürmen, M. İ. Karamangil, “A comparative study of carburation and injection fuel supply methods in an LPG-fuelled SI engine,” Fuel, vol. 107, pp. 511–517, May 2013.
II. C. D. Rakopoulos, C. N. Michos, E. G. Giakoumis. “Availability analysis of a syngas fueled spark ignition engine using a multi-zone combustion model,” Energy, vol. 33, no. 9, pp. 1378-1398, September 2008.
III. C. Ji, C. Liang, S. Wang, “Investigation on combustion and emissions of DME/gasoline mixtures in bja spark-ignition engine,” Fuel, vol. 90, no. 3, pp. 1133-1138, Mar. 2011.
IV. C. Park, S. Oh, T. Kim, H. Oh, C. Bae, “Combustion Characteristics of Stratified Mixture in Lean-Burn Liquefied Petroleum Gas Direct-Injection Engine with Spray-Guided Combustion System,” Journal of Engineering for Gas Turbines and Power, vol. 138, no. 7, PP. 071501, Jul 2016.
V. C. P. Cooney, J. J. Worm, J. D. Naber, “Combustion characterization in an internal combustion engine with ethanol-gasoline blended fuels varying compression ratios and ignition timing,” Energy & Fuels, vol. 23, no. 5, pp. 2319-2324, April 2009.
VI. E. Hu, Z. Huang, B. Liu, J. Zheng, X. Gu, “Experimental study on combustion characteristics of a spark-ignition engine fueled with natural gas–hydrogen blends combining with EGR,” International journal of hydrogen energy, vol. 34, no. 2, pp. 103 5-1044, January 2009.
VII. E. Singh, K. Morganti, R. Dibble, “Dual-fuel operation of gasoline and natural gas in a turbocharged engine,” Fuel, vol. 237, pp. 694-706, February 2019.
VIII. H. Bayraktar O. Durgun, “Investigating the effects of LPG on spark ignition engine combustion and performance,” Energy Conversion and Management, vol. 46, no. 14, pp. 2317-2333, August 2005.
IX. H. Bayraktar, “An experimental study on the performance parameters of an experimental CI engine fueled with diesel–methanol–dodecanol blends,” Fuel, vol. 87, no. 2, pp. 158–164, February 2008.
X. H. Hedfi, A. Jbara, H. Jedli, K. Slime, A. Stoppato, “Performance enhancement of a spark ignition engine fed by different fuel types Performance enhancement of a spark ignition engine fed by different fuel types,” Energy Conversion and Management, vol. 112, pp. 166–175, Mar. 2016.
XI. K. Dheeraj, B. Veeresh, K. Vijay, “Effects of LPG on the performance and emission characteristics of SI engine – An Overview,” IJEDR, vol. 2, no. 3, pp. 2997-3003, 2014.
XII. K. Kim, J. Kim, S. Oh, C. Kim, Y. Lee, “Lower particulate matter emissions with a stoichiometric LPG direct injection engine,” Fuel, vol. 187, no. 1, pp. 197–210, January 2017.
XIII. K. Kim, J. Kim, S. Oh, C. Kim, Y. Lee, “Evaluation of injection and ignition schemes for the ultra-lean combustion direct-injection LPG engine to control particulate emissions,” Applied Energy, vol. 194, pp. 123-135, May 2017.
XIV. L. Tunka, A. Polcar, “Effect of various ignition timings on combustion process and performance of gasoline engine,” Acta Univ. Agric. Silvic. MendelianaeBrun., vol. 65, no. 2, pp. 545–554, April 2017.
XV. M. Aldhaidhawi, M. Naji, K. A. Subhi, “Numerical study of combustion characteristic, performance and emissions of a SI engine running on gasoline, ethanol and LPG” Teat Engineering and Management, vol. 82, pp. 3559-3565, January-February 2020
XVI. M. Gumus, “Effects of volumetric efficiency on the performance and emissions characteristics of a dual fueled (gasoline and LPG) spark ignition engine,” Fuel Processing Technology, vol. 92, no. 10, 1862-1867, October 2011.
XVII. M. Najee, M. Aldhaidhawi, O. Khudhair, “Study on performance and emissions of SI engine fueled by different fuels” ARPN Journal of Engineering and Applied Sciences, vol. 14, no. 8, pp. 1490-1494, April 2019
XVIII. M. Pecqueur, K. Ceustermans, P. Huyskens, D. Savvidis, “Emissions Generated from a Suzuki Liane Running on Unleaded Gasoline and LPG under the Same Load Conditions,” SAE Technical Paper, 2637, Oct. 2008.
XIX. O. I.Awad, R. Mamat, O. M. Ali, N. A. C. Sidik, T. Yusaf, K. Kadirgama, M. Kettner, “Alcohol and ether as alternative fuels in spark ignition engine: A review,” Renewable and Sustainable Energy Reviews, vol. 82, no. 3, PP. 2586-2605, February 2018.
XX. S. Yousufuddina, M. Masoodb, “Effect of ignition timing and compression ratio on the performance of a hydrogen–ethanol fuelled engine,” International journal of hydrogen energy,” vol. 34, no. 16, pp. 6945- 6950, August 2009.
XXI. T. Hu, Y. Wei, S. Liu, L. Zhou, “Improvement of sparkignition (SI) engine combustion and emission during cold start, fueled with methanol/gasoline blends,” Energ& Fuels, vol. 21, pp. 171-175, November 2007.
View Download