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Effect of the Air Flow on the Combustion Process and Preheating Effect of the Intake Manifold Burner

Author

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  • Zhishuang Li

    (School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China)

  • Ziman Wang

    (School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China)

  • Haoyang Mo

    (School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China)

  • Han Wu

    (School of Mechanical Engineering, Beijing Institute of Technology, Beijing 100081, China)

Abstract

Diesel engines show poor performance and high emissions under cold-start conditions. The intake manifold burner is an effective method to increase the intake air temperature and improve engine performance. In this paper, a visualization system was employed to investigate the combustion process of the intake manifold burner. The effects of diesel flow rate and airflow velocity on combustion performance were investigated. The combustion process of the intake manifold burner showed four stages: preparing stage A, rapid development stage B, steady-development stage C, and stable stage D. Flame stripping was found in stages C and D, presenting the instability of the combustion process. With the increase in air flow velocity from 1.4 m/s to 3.0 m/s, the flame stripping was enhanced, leading to the increasing combustion instability and regular flame penetration fluctuations. The average temperature rise and combustion efficiency increased with the increasing diesel flow rate, indicating the combustion enhancement. Comparison of temperature rise and combustion efficiency under 2.0 m/s and 10.0 m/s showed that stronger cross wind enhances the heat convection, improving the temperature uniformity and combustion efficiency.

Suggested Citation

  • 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.
    • Handle: RePEc:gam:jeners:v:15:y:2022:i:9:p:3260-:d:805470
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    References listed on IDEAS

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    Cited by:

    1. Xuewen Zhang & Xiang Huang & Peiyong Ni & Xiang Li, 2023. "Strategies to Reduce Emissions from Diesel Engines under Cold Start Conditions: A Review," Energies, MDPI, vol. 16(13), pages 1-21, July.
    2. Zongyu Yue & Haifeng Liu, 2023. "Advanced Research on Internal Combustion Engines and Engine Fuels," Energies, MDPI, vol. 16(16), pages 1-8, August.
    3. Leonid Plotnikov, 2023. "Preparation and Analysis of Experimental Findings on the Thermal and Mechanical Characteristics of Pulsating Gas Flows in the Intake System of a Piston Engine for Modelling and Machine Learning," Mathematics, MDPI, vol. 11(8), pages 1-16, April.

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