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Experimental Research on the Injection Rate of DME and Diesel Fuel in Common Rail Injection System by Using Bosch and Zeuch Methods

Author

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  • Seemoon Yang

    (Leaders in Industry-University Cooperation (LINC) of Chosun University, 309 Pilmun-daero, Dong-gu, Gwangju 61452, Korea)

  • Changhee Lee

    (Department of Mechanical and Automotive Engineering, Songwon University, Songarm-ro, Gwangju 61756, Korea)

Abstract

This study investigates a preliminary injection characterization of the injection rate and the injection quantity behavior in a high-pressure common rail injection system used in a heavy-duty engine. The injection rate meter and the injection quantity meter used in the test meter measuring systems were jointly connected under the Zeuch method measurement principles at a constant volume chamber and under the Bosch method measurement principles at a long pipe flow. The trade-off trend for the injection rate and the injection quantity was observed according to the injection pressure. As expected, fuel injection with pilot injection affected the spray quantity and the injection evolution of subsequent fuel injection without pilot injection in dimethyl ether and diesel fuel. The pressure variations in the initial injection duration (2000–6000 µs) of the main and pilot injections for diesel and DME were similar. However, after 7000 µs, the pressure of DME increased more rapidly compared to that of diesel. This finding was the result of the rapid density changes caused by the nature of compressive fluid. Therefore, the DME supply pump was expected to require a higher drive energy by approximately 20% compared to that of the diesel supply pump.

Suggested Citation

  • Seemoon Yang & Changhee Lee, 2018. "Experimental Research on the Injection Rate of DME and Diesel Fuel in Common Rail Injection System by Using Bosch and Zeuch Methods," Energies, MDPI, vol. 11(2), pages 1-11, January.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:2:p:273-:d:128338
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    References listed on IDEAS

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    1. Jung, Dongwon & Iida, Norimasa, 2015. "Closed-loop control of HCCI combustion for DME using external EGR and rebreathed EGR to reduce pressure-rise rate with combustion-phasing retard," Applied Energy, Elsevier, vol. 138(C), pages 315-330.
    2. Seung Hyun Yoon & Seung Chul Han & Chang Sik Lee, 2013. "Effects of High EGR Rate on Dimethyl Ether (DME) Combustion and Pollutant Emission Characteristics in a Direct Injection Diesel Engine," Energies, MDPI, vol. 6(10), pages 1-11, October.
    3. Hanzhengnan Yu & Xingyu Liang & Gequn Shu & Xu Wang & Yuesen Wang & Hongsheng Zhang, 2016. "Experimental Investigation on Wall Film Distribution of Dimethyl Ether/Diesel Blended Fuels Formed during Spray Wall Impingement," Energies, MDPI, vol. 9(11), pages 1-17, November.
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    Cited by:

    1. Intarat Naruemon & Long Liu & Qihao Mei & Xiuzhen Ma, 2019. "Investigation on an Injection Strategy Optimization for Diesel Engines Using a One-Dimensional Spray Model," Energies, MDPI, vol. 12(21), pages 1-19, November.

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