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Ultra-high speed imaging study of the diesel spray close to the injector tip at the initial opening stage with single injection

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  • Wang, Ziman
  • Ding, Haichun
  • Ma, Xiao
  • Xu, Hongming
  • Wyszynski, Miroslaw L.

Abstract

This study focused on the primary breakup of spray at the initial injector opening stage at injection to atmospheric conditions. A real-time mass flow rate instrument was first used to study the injection characteristics at the injector opening stage. A long distance microscope together with an ultrahigh speed CCD camera was then employed to study the primary breakup of diesel spray by photography technique with the help of backlighting. The mechanism of the formation of the mushroom shaped spray head was discussed and the laminar flow regime was expected to be the main reason for the resultant shape. During the initial spray stage, the mushroom spray head penetrated almost linearly with respect to time. The quantification of the fuel mass/spray area ratio suggested that the dispersion of the spray is greatly improved within a very short time, which is assumed to be caused by the further opening of injector.

Suggested Citation

  • Wang, Ziman & Ding, Haichun & Ma, Xiao & Xu, Hongming & Wyszynski, Miroslaw L., 2016. "Ultra-high speed imaging study of the diesel spray close to the injector tip at the initial opening stage with single injection," Applied Energy, Elsevier, vol. 165(C), pages 335-344.
    • Handle: RePEc:eee:appene:v:165:y:2016:i:c:p:335-344
    DOI: 10.1016/j.apenergy.2015.12.046
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    Cited by:

    1. Wang, Ziman & Wang, Bo & Jiang, Changzhao & Xu, Hongming & Badawy, Tawfik, 2016. "Microscopic characterization of isooctane spray in the near field under flash boiling condition," Applied Energy, Elsevier, vol. 180(C), pages 598-606.
    2. Hwang, Joonsik & Bae, Choongsik & Patel, Chetankumar & Agarwal, Rashmi A. & Gupta, Tarun & Kumar Agarwal, Avinash, 2017. "Investigations on air-fuel mixing and flame characteristics of biodiesel fuels for diesel engine application," Applied Energy, Elsevier, vol. 206(C), pages 1203-1213.
    3. Xu, Leilei & Bai, Xue-Song & Jia, Ming & Qian, Yong & Qiao, Xinqi & Lu, Xingcai, 2018. "Experimental and modeling study of liquid fuel injection and combustion in diesel engines with a common rail injection system," Applied Energy, Elsevier, vol. 230(C), pages 287-304.
    4. de la Garza, Oscar A. & Martínez-Martínez, S. & Avulapati, Madan Mohan & Pos, Radboud & Megaritis, Thanos & Ganippa, Lionel, 2021. "Biofuels and its spray interactions under pilot-main injection strategy," Energy, Elsevier, vol. 219(C).
    5. G.M. Hasan Shahariar & Ock Taeck Lim, 2018. "A Study on Urea-Water Solution Spray-Wall Impingement Process and Solid Deposit Formation in Urea-SCR de-NO x System," Energies, MDPI, vol. 12(1), pages 1-18, December.
    6. Wang, Ziman & Badawy, Tawfik & Wang, Bo & Jiang, Yizhou & Xu, Hongming, 2017. "Experimental characterization of closely coupled split isooctane sprays under flash boiling conditions," Applied Energy, Elsevier, vol. 193(C), pages 199-209.
    7. Liao, Yujun & Dimopoulos Eggenschwiler, Panayotis & Rentsch, Daniel & Curto, Francesco & Boulouchos, Konstantinos, 2017. "Characterization of the urea-water spray impingement in diesel selective catalytic reduction systems," Applied Energy, Elsevier, vol. 205(C), pages 964-975.
    8. Liu, Fushui & Li, Zhishuang & Wang, Ziman & Dai, Xiaoyu & He, Xu & Lee, Chia-Fon, 2018. "Microscopic study on diesel spray under cavitating conditions by injecting fuel into water," Applied Energy, Elsevier, vol. 230(C), pages 1172-1181.
    9. Wang, Ziman & Guo, Hengjie & Wang, Chongming & Xu, Hongming & Li, Yanfei, 2017. "Microscopic level study on the spray impingement process and characteristics," Applied Energy, Elsevier, vol. 197(C), pages 114-123.
    10. Wang, Ziman & Jiang, Changzhao & Xu, Hongming & Badawy, Tawfik & Wang, Bo & Jiang, Yizhou, 2017. "The influence of flash boiling conditions on spray characteristics with closely coupled split injection strategy," Applied Energy, Elsevier, vol. 187(C), pages 523-533.
    11. Pos, Radboud & Wardle, Robert & Cracknell, Roger & Ganippa, Lionel, 2017. "Spatio-temporal evolution of diesel sprays at the early start of injection," Applied Energy, Elsevier, vol. 205(C), pages 391-398.
    12. Zhishuang Li & Ziman Wang & Haoyang Mo & Han Wu, 2022. "Effect of the Air Flow on the Combustion Process and Preheating Effect of the Intake Manifold Burner," Energies, MDPI, vol. 15(9), pages 1-17, April.

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