IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v17y2024i24p6473-d1550282.html
   My bibliography  Save this article

Impact of Multi-Valve Exhaust Gas Recirculation (EGR) System on Nitrogen Oxides Emissions in a Multi-Cylinder Engine

Author

Listed:
  • Konrad Krakowian

    (Department of Automotive Engineering, Mechanical Faculty, Wrocław University of Science and Technology, Braci Gierymskich 164, 51-640 Wrocław, Poland)

Abstract

Exhaust gas recirculation (EGR) systems, in addition to catalytic reactors, are now widely used in reciprocating internal combustion engines to reduce oxides of nitrogen (NOx) in the exhaust gases. They are characterized by the fact that part of the exhaust gas from the exhaust manifold is recycled and directed to the intake manifold through a special valve. This valve, depending on the current engine load and velocity, doses an appropriate amount of exhaust gas which, with each new charge, is fed to the individual engine cylinders. In addition, the positioning of the valve has a significant effect on the formation of nitrogen oxides in the exhaust gas from individual engine cylinders, which is due to the uneven distribution of exhaust gas into the intake manifold channels. Tests were carried out on a power unit equipped with a symmetrical intake manifold with a centrally located EGR valve. The article presents the results of tests on a system in which each cylinder was supplied with a separate EGR valve. This solution made it possible to charge each cylinder with the same mass of recirculated exhaust gas, which was dependent on engine velocity and load. The exhaust nitrogen oxides emissions were measured for the originally manufactured system and compared with the multi-valve system. The results confirmed the need for individual selection of the dose of recirculated exhaust gas for particular cylinders, as the multi-valve system equalized the levels of nitrogen oxides emissions in the exhaust gases coming from individual cylinders of the internal combustion engine.

Suggested Citation

  • Konrad Krakowian, 2024. "Impact of Multi-Valve Exhaust Gas Recirculation (EGR) System on Nitrogen Oxides Emissions in a Multi-Cylinder Engine," Energies, MDPI, vol. 17(24), pages 1-11, December.
    • Handle: RePEc:gam:jeners:v:17:y:2024:i:24:p:6473-:d:1550282
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/17/24/6473/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/17/24/6473/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Park, Youngsoo & Bae, Choongsik, 2014. "Experimental study on the effects of high/low pressure EGR proportion in a passenger car diesel engine," Applied Energy, Elsevier, vol. 133(C), pages 308-316.
    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. Zamboni, Giorgio & Capobianco, Massimo, 2012. "Experimental study on the effects of HP and LP EGR in an automotive turbocharged diesel engine," Applied Energy, Elsevier, vol. 94(C), pages 117-128.
    4. Choi, Seungmok & Park, Wonah & Lee, Sangyul & Min, Kyoungdoug & Choi, Hoimyung, 2011. "Methods for in-cylinder EGR stratification and its effects on combustion and emission characteristics in a diesel engine," Energy, Elsevier, vol. 36(12), pages 6948-6959.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Reihani, Amin & Hoard, John & Klinkert, Stefan & Kuan, Chih-Kuang & Styles, Daniel & McConville, Greg, 2020. "Experimental response surface study of the effects of low-pressure exhaust gas recirculation mixing on turbocharger compressor performance," Applied Energy, Elsevier, vol. 261(C).
    2. Ko, Jinyoung & Jin, Dongyoung & Jang, Wonwook & Myung, Cha-Lee & Kwon, Sangil & Park, Simsoo, 2017. "Comparative investigation of NOx emission characteristics from a Euro 6-compliant diesel passenger car over the NEDC and WLTC at various ambient temperatures," Applied Energy, Elsevier, vol. 187(C), pages 652-662.
    3. 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.
    4. Wang, Dawei & Shi, Lei & Zhu, Sipeng & Liu, Bo & Qian, Yuehua & Deng, Kangyao, 2020. "Numerical and thermodynamic study on effects of high and low pressure exhaust gas recirculation on turbocharged marine low-speed engine," Applied Energy, Elsevier, vol. 261(C).
    5. Zhu, Dengting & Zheng, Xinqian, 2019. "Fuel consumption and emission characteristics in asymmetric twin-scroll turbocharged diesel engine with two exhaust gas recirculation circuits," Applied Energy, Elsevier, vol. 238(C), pages 985-995.
    6. 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.
    7. Liu, Bolan & Zhang, Fujun & Zhao, Changlu & An, Xiaohui & Pei, Haijun, 2016. "A novel lambda-based EGR (exhaust gas recirculation) modulation method for a turbocharged diesel engine under transient operation," Energy, Elsevier, vol. 96(C), pages 521-530.
    8. 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.
    9. Rami Y. Dahham & Haiqiao Wei & Jiaying Pan, 2022. "Improving Thermal Efficiency of Internal Combustion Engines: Recent Progress and Remaining Challenges," Energies, MDPI, vol. 15(17), pages 1-60, August.
    10. Baek, Seungju & Woo, Seungchul & Kim, Youngkun & Lee, Kihyung, 2019. "Prediction of turbocharged diesel engine performance equipped with an electric supercharger using 1D simulation," Energy, Elsevier, vol. 185(C), pages 213-228.
    11. Giorgio Zamboni, 2018. "A Study on Combustion Parameters in an Automotive Turbocharged Diesel Engine," Energies, MDPI, vol. 11(10), pages 1-21, September.
    12. 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.
    13. Yoon, Wonjun & Kim, Jonghyun & Chung, Chungsoo & Park, Jungsoo, 2022. "Numerical study on prediction of icing phenomena in intake system of diesel engine: Operating conditions with low-to-middle velocity of inlet air," Energy, Elsevier, vol. 248(C).
    14. Lu, Zhen & Liu, Mengyu & Shi, Lei & Wang, Tianyou & Lu, Tianlong & Wang, Huaiyin, 2022. "Numerical research of the injected exhaust gas recirculation strategy on a two-stroke low-speed marine diesel engine," Energy, Elsevier, vol. 244(PA).
    15. Zhu, Dengting & Zheng, Xinqian, 2018. "A new asymmetric twin-scroll turbine with two wastegates for energy improvements in diesel engines," Applied Energy, Elsevier, vol. 223(C), pages 263-272.
    16. Jia, Ming & Li, Yaopeng & Xie, Maozhao & Wang, Tianyou, 2013. "Numerical evaluation of the potential of late intake valve closing strategy for diesel PCCI (premixed charge compression ignition) engine in a wide speed and load range," Energy, Elsevier, vol. 51(C), pages 203-215.
    17. Baek, Seungju & Lee, Hyeonjik & Lee, Kihyung, 2021. "Fuel efficiency and exhaust characteristics of turbocharged diesel engine equipped with an electric supercharger," Energy, Elsevier, vol. 214(C).
    18. Jarosław Ziółkowski & Mateusz Oszczypała & Jerzy Małachowski & Joanna Szkutnik-Rogoż, 2021. "Use of Artificial Neural Networks to Predict Fuel Consumption on the Basis of Technical Parameters of Vehicles," Energies, MDPI, vol. 14(9), pages 1-23, May.
    19. Zhaojie Shen & Wenzheng Cui & Xiaodong Ju & Zhongchang Liu & Shaohua Wu & Jianguo Yang, 2018. "Numerical Investigation on Effects of Assigned EGR Stratification on a Heavy Duty Diesel Engine with Two-Stage Fuel Injection," Energies, MDPI, vol. 11(3), pages 1-14, February.
    20. Lu, Kai & Bai, Shuzhan & Zang, Zhicheng & Li, Guoxiang, 2023. "Study on urea deposits risk of after-treatment system based on deposits boundary method," Energy, Elsevier, vol. 267(C).

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jeners:v:17:y:2024:i:24:p:6473-:d:1550282. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.