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A physics-based time-varying transport delay oxygen concentration model for dual-loop exhaust gas recirculation (EGR) engine air-paths

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  • Zeng, Xiangrui
  • Wang, Junmin

Abstract

Dual-loop exhaust gas recirculation (EGR) systems can provide control authorities to adjust the engine in-cylinder gas conditions. The significant transport delays in the EGR air-paths can affect the performance of some simple oxygen concentration dynamic models under transient operating conditions. In this paper, a physics-based dual-loop EGR air-path oxygen concentration model considering the time-varying transport delays is developed and a method to calculate the delay time based on the continuity of fluid velocity is presented. Simulation studies with a high-fidelity, one-dimensional, computational GT-Power engine model and experimental validations on a Diesel engine test bench show that the developed model performs well under all tested operating conditions while the comparison models cannot capture the oxygen concentration dynamics under some transient operating conditions.

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  • Zeng, Xiangrui & Wang, Junmin, 2014. "A physics-based time-varying transport delay oxygen concentration model for dual-loop exhaust gas recirculation (EGR) engine air-paths," Applied Energy, Elsevier, vol. 125(C), pages 300-307.
    • Handle: RePEc:eee:appene:v:125:y:2014:i:c:p:300-307
    DOI: 10.1016/j.apenergy.2014.03.076
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    References listed on IDEAS

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    1. Dehghani Firoozabadi, M. & Shahbakhti, M. & Koch, C.R. & Jazayeri, S.A., 2013. "Thermodynamic control-oriented modeling of cycle-to-cycle exhaust gas temperature in an HCCI engine," Applied Energy, Elsevier, vol. 110(C), pages 236-243.
    2. Fathi, Morteza & Saray, R. Khoshbakhti & Checkel, M. David, 2011. "The influence of Exhaust Gas Recirculation (EGR) on combustion and emissions of n-heptane/natural gas fueled Homogeneous Charge Compression Ignition (HCCI) engines," Applied Energy, Elsevier, vol. 88(12), pages 4719-4724.
    3. Agarwal, Deepak & Singh, Shrawan Kumar & Agarwal, Avinash Kumar, 2011. "Effect of Exhaust Gas Recirculation (EGR) on performance, emissions, deposits and durability of a constant speed compression ignition engine," Applied Energy, Elsevier, vol. 88(8), pages 2900-2907, August.
    4. Millo, Federico & Giacominetto, Paolo Ferrero & Bernardi, Marco Gianoglio, 2012. "Analysis of different exhaust gas recirculation architectures for passenger car Diesel engines," Applied Energy, Elsevier, vol. 98(C), pages 79-91.
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    1. Park, Jungsoo & Song, Soonho & Lee, Kyo Seung, 2015. "Numerical investigation of a dual-loop EGR split strategy using a split index and multi-objective Pareto optimization," Applied Energy, Elsevier, vol. 142(C), pages 21-32.
    2. Zamboni, Giorgio & Moggia, Simone & Capobianco, Massimo, 2016. "Hybrid EGR and turbocharging systems control for low NOX and fuel consumption in an automotive diesel engine," Applied Energy, Elsevier, vol. 165(C), pages 839-848.
    3. Park, Jungsoo & Choi, Jungwook, 2016. "Optimization of dual-loop exhaust gas recirculation splitting for a light-duty diesel engine with model-based control," Applied Energy, Elsevier, vol. 181(C), pages 268-277.
    4. Andwari, Amin Mahmoudzadeh & Aziz, Azhar Abdul & Said, Mohd Farid Muhamad & Latiff, Zulkarnain Abdul, 2014. "Experimental investigation of the influence of internal and external EGR on the combustion characteristics of a controlled auto-ignition two-stroke cycle engine," Applied Energy, Elsevier, vol. 134(C), pages 1-10.
    5. Giorgio Zamboni & Simone Moggia & Massimo Capobianco, 2017. "Effects of a Dual-Loop Exhaust Gas Recirculation System and Variable Nozzle Turbine Control on the Operating Parameters of an Automotive Diesel Engine," Energies, MDPI, vol. 10(1), pages 1-18, January.

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