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Experimental Investigation on Establishing the HCCI Process Fueled by N-Heptane in a Direct Injection Diesel Engine at Different Compression Ratios

Author

Listed:
  • Tuan Le Anh

    (School of Transportation Engineering, Hanoi University of Science and Technology, Hanoi 100000, Vietnam)

  • Vinh Nguyen Duy

    (School of Transportation Engineering, Hanoi University of Science and Technology, Hanoi 100000, Vietnam)

  • Ha Khuong Thi

    (Faculty of Mechanical Engineering, University of Transport and Communications, Hanoi 100000, Vietnam)

  • Hoi Nguyen Xa

    (University of Fire Fighting and Prevention, Hanoi 100000, Vietnam)

Abstract

Establishing the homogeneous charge compression ignition (HCCI) process in a diesel engine, in order to improve exhaust emission quality while extending the HCCI regime, is one of the challenges in applying HCCI in worldwide applications. This can be done by decreasing the compression ratio, and controlling the exhaust gas recirculation (EGR) rate and charging temperature. In this paper, an original single cylinder diesel engine was converted to n-heptane-fueled HCCI with the fuel injected into the intake manifold. At the designed compression ratio of 20:1, the HCCI engine could operate stably at low speed (from 1600 rpm to 2000 rpm) and low load (10% to 20% load). In addition, reducing the compression ratio from 20:1 to 14.87:1 by changing the thickness of the cylinder head gasket and with no EGR applied extended the operating range to 50% load and 3200 rpm speed.

Suggested Citation

  • Tuan Le Anh & Vinh Nguyen Duy & Ha Khuong Thi & Hoi Nguyen Xa, 2018. "Experimental Investigation on Establishing the HCCI Process Fueled by N-Heptane in a Direct Injection Diesel Engine at Different Compression Ratios," Sustainability, MDPI, vol. 10(11), pages 1-11, October.
    • Handle: RePEc:gam:jsusta:v:10:y:2018:i:11:p:3878-:d:178212
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    References listed on IDEAS

    as
    1. Jun Cong Ge & Min Soo Kim & Sam Ki Yoon & Nag Jung Choi, 2015. "Effects of Pilot Injection Timing and EGR on Combustion, Performance and Exhaust Emissions in a Common Rail Diesel Engine Fueled with a Canola Oil Biodiesel-Diesel Blend," Energies, MDPI, vol. 8(7), pages 1-14, July.
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