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Experimental studies on simultaneous injection of ethanol–gasoline and n-butanol–gasoline in the intake port of a four stroke SI engine

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  • Thangavel, Venugopal
  • Momula, Sai Yashwanth
  • Gosala, Dheeraj Bharadwaj
  • Asvathanarayanan, Ramesh

Abstract

Two separate injectors were used to simultaneously inject ethanol and gasoline in the intake port of a single cylinder SI engine. The relative amounts of the two fuels on mass basis and the spark timing were changed using a real time controller. Neat gasoline could be used till 35% throttle beyond which higher thermal efficiency and torque could be obtained by switching to 30% ethanol. This system can be used to provide sufficient margin for knock free operation. Efficiency and torque were better at a mass ratio of 1:1 (50% of ethanol and 50% of gasoline) due to faster combustion as a result of better mixture preparation as compared to conventional pre-blended injection of gasoline and ethanol. However, NO and HC were slightly elevated. This dual injection system can allow the use of ethanol only when needed while permitting stoichiometric operation even under high torque conditions by adjusting the proportion of ethanol. Ethanol–gasoline and n-butanol–gasoline were compared in terms of performance and emission with dual injection strategy. The amount of n-butanol has to be increased with increase in torque conditions for better performance and low emission. The benefit of using ethanol with gasoline is significant at high torque conditions.

Suggested Citation

  • Thangavel, Venugopal & Momula, Sai Yashwanth & Gosala, Dheeraj Bharadwaj & Asvathanarayanan, Ramesh, 2016. "Experimental studies on simultaneous injection of ethanol–gasoline and n-butanol–gasoline in the intake port of a four stroke SI engine," Renewable Energy, Elsevier, vol. 91(C), pages 347-360.
    • Handle: RePEc:eee:renene:v:91:y:2016:i:c:p:347-360
    DOI: 10.1016/j.renene.2016.01.074
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    References listed on IDEAS

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    Cited by:

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    2. Meng, Xianglong & Xie, Fangxi & Li, Xiaona & Han, Linghai & Duan, Jiaquan & Gong, Yanfeng & Zhou, You, 2024. "Study on the effects of intake valve timing and lift on the combustion and emission performance of ethanol, N-butanol, and gasoline engine under stoichiometric combustion and lean burn conditions," Energy, Elsevier, vol. 300(C).
    3. Yaman, Hayri & Yesilyurt, Murat Kadir & Uslu, Samet, 2022. "Simultaneous optimization of multiple engine parameters of a 1-heptanol / gasoline fuel blends operated a port-fuel injection spark-ignition engine using response surface methodology approach," Energy, Elsevier, vol. 238(PC).
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    5. Sofia Agostinelli & Mehdi Neshat & Meysam Majidi Nezhad & Giuseppe Piras & Davide Astiaso Garcia, 2022. "Integrating Renewable Energy Sources in Italian Port Areas towards Renewable Energy Communities," Sustainability, MDPI, vol. 14(21), pages 1-18, October.
    6. Mourad, M. & Mahmoud, K., 2019. "Investigation into SI engine performance characteristics and emissions fuelled with ethanol/butanol-gasoline blends," Renewable Energy, Elsevier, vol. 143(C), pages 762-771.
    7. Juan E. Tibaquirá & José I. Huertas & Sebastián Ospina & Luis F. Quirama & José E. Niño, 2018. "The Effect of Using Ethanol-Gasoline Blends on the Mechanical, Energy and Environmental Performance of In-Use Vehicles," Energies, MDPI, vol. 11(1), pages 1-17, January.
    8. Yuce, Bahadir Erman & Oral, Faruk, 2024. "Multi objective optimization of emission and performance characteristics in a spark ignition engine with a novel hydrogen generator," Energy, Elsevier, vol. 289(C).
    9. Huang, Yuhan & Surawski, Nic C. & Zhuang, Yuan & Zhou, John L. & Hong, Guang, 2021. "Dual injection: An effective and efficient technology to use renewable fuels in spark ignition engines," Renewable and Sustainable Energy Reviews, Elsevier, vol. 143(C).
    10. Weiwei Shang & Xiumin Yu & Kehao Miao & Zezhou Guo & Huiying Liu & Xiaoxue Xing, 2023. "Research on Combustion and Emission Characteristics of a N-Butanol Combined Injection SI Engine," Sustainability, MDPI, vol. 15(12), pages 1-19, June.
    11. Tian, Zhi & Zhen, Xudong & Wang, Yang & Liu, Daming & Li, Xiaoyan, 2020. "Combustion and emission characteristics of n-butanol-gasoline blends in SI direct injection gasoline engine," Renewable Energy, Elsevier, vol. 146(C), pages 267-279.

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