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Study on the Effect of Second Injection Timing on the Engine Performances of a Gasoline/Hydrogen SI Engine with Split Hydrogen Direct Injecting

Author

Listed:
  • Guanting Li

    (State Key Laboratory of Automotive Simulation and Control, Jilin University, Renmin Street 5988, Changchun 130022, Jilin, China)

  • Xiumin Yu

    (State Key Laboratory of Automotive Simulation and Control, Jilin University, Renmin Street 5988, Changchun 130022, Jilin, China)

  • Ping Sun

    (State Key Laboratory of Automotive Simulation and Control, Jilin University, Renmin Street 5988, Changchun 130022, Jilin, China)

  • Decheng Li

    (State Key Laboratory of Automotive Simulation and Control, Jilin University, Renmin Street 5988, Changchun 130022, Jilin, China)

Abstract

Split hydrogen direct injection (SHDI) has been proved capable of better efficiency and fewer emissions. Therefore, to investigate SHDI deeply, a numerical study on the effect of second injection timing was presented at a gasoline/hydrogen spark ignition (SI) engine with SHDI. With an excess air ratio of 1.5, five different second injection timings achieved five kinds of hydrogen mixture distribution (HMD), which was the main factor affecting the engine performances. With SHDI, since the HMD is manageable, the engine can achieve better efficiency and fewer emissions. When the second injection timing was 105° crank angle (CA) before top dead center (BTDC), the P max was the highest and the position of the P max was the earliest. Compared with the single hydrogen direct injection (HDI), the NO X , CO and HC emissions with SHDI were reduced by 20%, 40% and 72% respectively.

Suggested Citation

  • Guanting Li & Xiumin Yu & Ping Sun & Decheng Li, 2020. "Study on the Effect of Second Injection Timing on the Engine Performances of a Gasoline/Hydrogen SI Engine with Split Hydrogen Direct Injecting," Energies, MDPI, vol. 13(19), pages 1-14, October.
    • Handle: RePEc:gam:jeners:v:13:y:2020:i:19:p:5223-:d:424582
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    References listed on IDEAS

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    1. Shang, Zhen & Yu, Xiumin & Ren, Lei & Wei, Guowu & Li, Guanting & Li, Decheng & Li, Yinan, 2020. "Comparative study on effects of injection mode on combustion and emission characteristics of a combined injection n-butanol/gasoline SI engine with hydrogen direct injection," Energy, Elsevier, vol. 213(C).
    2. He, Fengshuo & Li, Shuo & Yu, Xiumin & Du, Yaodong & Zuo, Xiongyinan & Dong, Wei & Sun, Ping & He, Ling, 2018. "Comparison study and synthetic evaluation of combined injection in a spark ignition engine with hydrogen-blended at lean burn condition," Energy, Elsevier, vol. 157(C), pages 1053-1062.
    3. Gong, Changming & Li, Zhaohui & Li, Dong & Liu, Jiajun & Si, Xiankai & Yu, Jiawei & Huang, Wei & Liu, Fenghua & Han, Yongqiang, 2018. "Numerical investigation of hydrogen addition effects on methanol-air mixtures combustion in premixed laminar flames under lean burn conditions," Renewable Energy, Elsevier, vol. 127(C), pages 56-63.
    4. Kamil, Mohammed & Rahman, M.M., 2015. "Performance prediction of spark-ignition engine running on gasoline-hydrogen and methane-hydrogen blends," Applied Energy, Elsevier, vol. 158(C), pages 556-567.
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    Cited by:

    1. Chang, Ke & Ji, Changwei & Wang, Shuofeng & Yang, Jinxin & Wang, Huaiyu & Meng, Hao & Liu, Dianqing, 2023. "Numerical investigation of the synchronous and asynchronous changes of ignition timing in a double spark plugs direct injection rotary engine," Energy, Elsevier, vol. 268(C).

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