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Experimental and numerical investigation of performance of an ethanol-gasoline dual-injection engine

Author

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  • Zhuang, Yuan
  • Zhu, Guodong
  • Gong, Zhen
  • Wang, Chenfang
  • Huang, Yuhan

Abstract

Experiments and simulations were performed to investigate the effect of ethanol direct injection plus gasoline port injection (EDI + GPI) on engine performance. Gasoline direct injection plus GPI (GDI + GPI) was also tested as a reference to EDI + GPI. The experimental results showed that volumetric efficiency increased with the raise of direct injection ratio in both EDI + GPI and GDI + GPI conditions. The volumetric efficiency and IMEP of EDI + GPI were greater than that of GDI + GPI, due to the stronger charge cooling effect of EDI. Combustion process was improved by EDI when ethanol energy ratio (EER) was less than 42%, however further increase of EER led to the deterioration of combustion process. Simulation results showed that ethanol's high laminar flame speed played a dominate role to the improvement of combustion process. Although EDI negatively affected the equivalence ratio around spark plug, this disadvantage was offset by the high laminar flame speed of ethanol, resulting in shorter initial and major combustion durations. Simulation results also found that combustion process was deteriorated when EER was greater than 42%, which was mainly due to over-cooling and poor mixing of EDI. Regarding emissions, NO decreased while CO and HC increased with the raise of both EDI and GDI ratios.

Suggested Citation

  • Zhuang, Yuan & Zhu, Guodong & Gong, Zhen & Wang, Chenfang & Huang, Yuhan, 2019. "Experimental and numerical investigation of performance of an ethanol-gasoline dual-injection engine," Energy, Elsevier, vol. 186(C).
    • Handle: RePEc:eee:energy:v:186:y:2019:i:c:s0360544219315075
    DOI: 10.1016/j.energy.2019.07.165
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    Cited by:

    1. Xiang Li & Yiqiang Pei & Dayou Li & Tahmina Ajmal & Khaqan-Jim Rana & Abdel Aitouche & Raouf Mobasheri & Zhijun Peng, 2021. "Effects of Water Injection Strategies on Oxy-Fuel Combustion Characteristics of a Dual-Injection Spark Ignition Engine," Energies, MDPI, vol. 14(17), pages 1-24, August.
    2. Zhang, Qing & Gao, Ya & Chu, Miaoqi & Chen, Pice & Zhang, Qingteng & Wang, Jin, 2023. "Enhanced energy conversion efficiency promoted by cavitation in gasoline direct injection," Energy, Elsevier, vol. 265(C).
    3. Zhang, Miao & Derafshzan, Saeed & Richter, Mattias & Lundgren, Marcus, 2020. "Effects of different injection strategies on ignition and combustion characteristics in an optical PPC engine," Energy, Elsevier, vol. 203(C).
    4. Li, Xiaoyan & Zhen, Xudong & Wang, Yang & Tian, Zhi, 2022. "Numerical comparative study on performance and emissions characteristics fueled with methanol, ethanol and methane in high compression spark ignition engine," Energy, Elsevier, vol. 254(PA).
    5. Liu, Shang & Lin, Zhelong & Zhang, Hao & Fan, Qinhao & Lei, Nuo & Wang, Zhi, 2023. "Experimental study on combustion and emission characteristics of ethanol-gasoline blends in a high compression ratio SI engine," Energy, Elsevier, vol. 274(C).
    6. Zhen, Xudong & Tian, Zhi & Wang, Yang & Xu, Meng & Liu, Daming & Li, Xiaoyan, 2022. "Knock analysis of bio-butanol in TISI engine based on chemical reaction kinetics," Energy, Elsevier, vol. 239(PC).
    7. Shi, Cheng & Ji, Changwei & Ge, Yunshan & Wang, Shuofeng & Yang, Jinxin & Wang, Huaiyu, 2021. "Effects of split direct-injected hydrogen strategies on combustion and emissions performance of a small-scale rotary engine," Energy, Elsevier, vol. 215(PA).
    8. Lin, Wen-Ting & Chen, Guo & Zhou, Xiaojun, 2022. "Distributed carbon-aware energy trading of virtual power plant under denial of service attacks: A passivity-based neurodynamic approach," Energy, Elsevier, vol. 257(C).
    9. Catapano, Francesco & Di Iorio, Silvana & Magno, Agnese & Vaglieco, Bianca Maria, 2022. "Effect of fuel quality on combustion evolution and particle emissions from PFI and GDI engines fueled with gasoline, ethanol and blend, with focus on 10–23 nm particles," Energy, Elsevier, vol. 239(PB).
    10. Gong, Changming & Zhang, Zilei & Sun, Jingzhen & Chen, Yulin & Liu, Fenghua, 2020. "Computational study of nozzle spray-line distribution effects on stratified mixture formation, combustion and emissions of a high compression ratio DISI methanol engine under lean-burn condition," Energy, Elsevier, vol. 205(C).
    11. 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).

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