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Research on Exhaust Emissions in Dynamic Operating States of a Combustion Engine in a Real Driving Emissions Test

Author

Listed:
  • Monika Andrych-Zalewska

    (Faculty of Mechanical Engineering, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland)

  • Zdzislaw Chlopek

    (Faculty of Automotive and Construction Machinery Engineering, Warsaw University of Technology, Narbutta 84, 02-524 Warsaw, Poland)

  • Jerzy Merkisz

    (Faculty of Civil and Transport Engineering, Poznan University of Technology, pl. M. Sklodowskiej-Curie 5, 60-965 Poznan, Poland)

  • Jacek Pielecha

    (Faculty of Civil and Transport Engineering, Poznan University of Technology, pl. M. Sklodowskiej-Curie 5, 60-965 Poznan, Poland)

Abstract

The paper describes the method of investigations of exhaust emissions from a combustion engine under operation classified in terms of its dynamic states. In this paper, the engine operating states are determined through the vehicle driving under actual traffic conditions in the RDE (Real Driving Emissions) test. Based on the recorded tracings of the vehicle velocity, the engine states were classified as static for the acceleration of the absolute value lower than the adopted classification limit. Besides, the authors analyzed the engine operating states for the positive as well as negative acceleration. For the adopted engine operating states, zero-dimensional characteristics of the emission intensity for individual exhaust components were determined (average value, coefficient of variation). The influence of the analyzed operating states on the emission of individual exhaust components was assessed. The greatest increase in the intensity of the emission of nitrogen oxides was observed for the positive vehicle acceleration model and the lowest (also for the nitrogen oxides) for the negative vehicle acceleration. On average, the greatest increase in the emission intensity of pollutants and the intensity of particle number occurred for the dynamic states of the engine corresponding to positive acceleration. The conclusions from the performed investigations entitle the authors to propose a greater allowance for the exhaust emission-related criteria in the engine control algorithms.

Suggested Citation

  • Monika Andrych-Zalewska & Zdzislaw Chlopek & Jerzy Merkisz & Jacek Pielecha, 2021. "Research on Exhaust Emissions in Dynamic Operating States of a Combustion Engine in a Real Driving Emissions Test," Energies, MDPI, vol. 14(18), pages 1-15, September.
    • Handle: RePEc:gam:jeners:v:14:y:2021:i:18:p:5684-:d:632450
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    References listed on IDEAS

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    1. Monika Andrych-Zalewska & Zdzislaw Chlopek & Jerzy Merkisz & Jacek Pielecha, 2021. "Investigations of Exhaust Emissions from a Combustion Engine under Simulated Actual Operating Conditions in Real Driving Emissions Test," Energies, MDPI, vol. 14(4), pages 1-20, February.
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    Cited by:

    1. Artur Jaworski & Maksymilian Mądziel & Hubert Kuszewski, 2022. "Sustainable Public Transport Strategies—Decomposition of the Bus Fleet and Its Influence on the Decrease in Greenhouse Gas Emissions," Energies, MDPI, vol. 15(6), pages 1-14, March.
    2. Andrzej Ziółkowski & Paweł Fuć & Aleks Jagielski & Maciej Bednarek, 2022. "Analysis of Emissions and Fuel Consumption in Freight Transport," Energies, MDPI, vol. 15(13), pages 1-14, June.
    3. Ireneusz Pielecha, 2022. "Modeling of Fuel Cells Characteristics in Relation to Real Driving Conditions of FCHEV Vehicles," Energies, MDPI, vol. 15(18), pages 1-18, September.
    4. Tadeusz Dziubak & Mirosław Karczewski, 2022. "Experimental Studies of the Effect of Air Filter Pressure Drop on the Composition and Emission Changes of a Compression Ignition Internal Combustion Engine," Energies, MDPI, vol. 15(13), pages 1-31, June.

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