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Experimental Investigation of the Loading Strategy of an Automotive Diesel Engine under Transient Operation Conditions

Author

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  • Qiang Liu

    (State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130025, China
    Jilin Engineering Normal University, Innovative Research Team of Jilin Engineering Normal University (IRTJLENU), Changchun 130052, China)

  • Zhongchang Liu

    (State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130025, China)

  • Yongqiang Han

    (State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130025, China)

  • Jing Tian

    (State Key Laboratory of Automotive Simulation and Control, Jilin University, Changchun 130025, China)

  • Jun Wang

    (Jilin Engineering Normal University, Innovative Research Team of Jilin Engineering Normal University (IRTJLENU), Changchun 130052, China)

  • Jian Fang

    (Jilin Engineering Normal University, Innovative Research Team of Jilin Engineering Normal University (IRTJLENU), Changchun 130052, China)

Abstract

Targeting the performance optimization of an automotive diesel engine under transient operation conditions, in this research, the effect of several non-linear loading strategies on diesel performance have been experimentally analyzed using a heavy-duty turbocharged diesel engine running under transient conditions based on the constant 1650 r/min speed, the load is increased from 10% to 100% in a 5 s transition time The results show that the larger the early loading rate and change point load, the better the dynamic torque response. The peak values of smoke and CO and the transient average of brake specific fuel consumption (BSFC), soot and CO can be decreased by increasing the early loading rate by the loading strategies with the appropriate change point load during transient operation. However, combustion deteriorates under the loading process with an overlarge change point load, causing emissions to increase, and the larger the early loading rate, the worse the worsening. Based on the trade-off consisting of torque dynamic response, transient total and transient average of the BSFC and brake specific emissions, peak values of smoke and CO emissions, it is concluded that the loading strategy with the early loading rate is the 50% load per second and the change point load in the 25% load is the most suitable in these strategies.

Suggested Citation

  • Qiang Liu & Zhongchang Liu & Yongqiang Han & Jing Tian & Jun Wang & Jian Fang, 2018. "Experimental Investigation of the Loading Strategy of an Automotive Diesel Engine under Transient Operation Conditions," Energies, MDPI, vol. 11(5), pages 1-15, May.
    • Handle: RePEc:gam:jeners:v:11:y:2018:i:5:p:1293-:d:147768
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    References listed on IDEAS

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    1. Han, Yongqiang & Zhang, Longping & Liu, Zhongchang & Tian, Jing, 2016. "Investigation of transient deterioration mechanism and improved method for turbocharged diesel engine," Energy, Elsevier, vol. 116(P1), pages 250-264.
    2. Zhongchang Liu & Xing Yuan & Jing Tian & Yongqiang Han & Runzhao Li & Guanlong Gao, 2018. "Investigation of Sectional-Stage Loading Strategies on a Two-Stage Turbocharged Heavy-Duty Diesel Engine under Transient Operation with EGR," Energies, MDPI, vol. 11(1), pages 1-19, January.
    3. Meng Xia & Changlu Zhao & Fujun Zhang & Ying Huang, 2017. "Modeling the Performance of a New Speed Adjustable Compound Supercharging Diesel Engine Working under Plateau Conditions," Energies, MDPI, vol. 10(5), pages 1-14, May.
    4. Shen, Zhaojie & Liu, Zhongchang & Tian, Jing & Liu, Jiangwei, 2014. "Investigation of in-cylinder gas stratification of diesel engine during intake and compression stroke," Energy, Elsevier, vol. 72(C), pages 671-679.
    5. Jinxi Zhou & Song Zhou & Yuanqing Zhu, 2017. "Characterization of Particle and Gaseous Emissions from Marine Diesel Engines with Different Fuels and Impact of After-Treatment Technology," Energies, MDPI, vol. 10(8), pages 1-14, July.
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    Cited by:

    1. Franklin Consuegra & Antonio Bula & Wilson Guillín & Jonathan Sánchez & Jorge Duarte Forero, 2019. "Instantaneous in-Cylinder Volume Considering Deformation and Clearance due to Lubricating Film in Reciprocating Internal Combustion Engines," Energies, MDPI, vol. 12(8), pages 1-21, April.
    2. Qiang Liu & Zhongchang Liu & Xiaoming Ren & Yongqiang Han & Jun Wang & Jian Fang, 2019. "Study on Sensitivity Differences of Critical Spontaneous Ignition Temperature between Alcohol and Hydrocarbon Fuels Based on Reaction Pathway," Energies, MDPI, vol. 12(3), pages 1-16, February.

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