IDEAS home Printed from https://ideas.repec.org/a/eee/energy/v215y2021ipbs0360544220322234.html
   My bibliography  Save this article

Investigation on the EGR effect to further improve fuel economy and emissions effect of Miller cycle turbocharged engine

Author

Listed:
  • Shen, Kai
  • Xu, Zishun
  • Chen, Hong
  • Zhang, Zhendong

Abstract

Miller cycle and EGR have been proved to be the effective ways to improve the engine performance. In order to realize Miller cycle with high compression ratio, the piston and intake cam profile were redesigned for a turbocharged GDI engine. In-cylinder pressure was taken to clarify the difference of working cycles between Miller and Otto cycle. At full load, Miller engine with high compression ratio leads to the knock at a low speed. But at a high speed, engine can operate nearer stoichiometric conditions and get better economy. At partial load, engine can adopt higher compression ratio and intake pressure. The reduction of pumping losses and exhaust gas energy have become the key factors to improve fuel economy. On the basis, LP cooled EGR was introduced to study the further effect on Miller cycle. In-cylinder temperature is reduced due to the EGR dilution and heat capacity effect. Thus, engine can adopt larger ignition advance angle to obtain better combustion phase. For emission analysis, lower temperature can effectively reduce NOx emissions. However, because of the extended combustion duration and complex piston shape, insufficient combustion will result in the increase of THC. The constant excess-air coefficient makes the CO emissions almost unchanged.

Suggested Citation

  • Shen, Kai & Xu, Zishun & Chen, Hong & Zhang, Zhendong, 2021. "Investigation on the EGR effect to further improve fuel economy and emissions effect of Miller cycle turbocharged engine," Energy, Elsevier, vol. 215(PB).
    • Handle: RePEc:eee:energy:v:215:y:2021:i:pb:s0360544220322234
    DOI: 10.1016/j.energy.2020.119116
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0360544220322234
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.energy.2020.119116?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Tavakoli, Sady & Jazayeri, S. Ali & Fathi, Morteza & Jahanian, Omid, 2016. "Miller cycle application to improve lean burn gas engine performance," Energy, Elsevier, vol. 109(C), pages 190-200.
    2. Zhao, Jinxing, 2017. "Research and application of over-expansion cycle (Atkinson and Miller) engines – A review," Applied Energy, Elsevier, vol. 185(P1), pages 300-319.
    3. Gonca, Guven & Sahin, Bahri & Parlak, Adnan & Ayhan, Vezir & Cesur, İdris & Koksal, Sakip, 2015. "Application of the Miller cycle and turbo charging into a diesel engine to improve performance and decrease NO emissions," Energy, Elsevier, vol. 93(P1), pages 795-800.
    4. Fontana, G. & Galloni, E., 2009. "Variable valve timing for fuel economy improvement in a small spark-ignition engine," Applied Energy, Elsevier, vol. 86(1), pages 96-105, January.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Qiao, Junhao & Liu, Jingping & Liang, Jichao & Jia, Dongdong & Wang, Rumin & Shen, Dazi & Duan, Xiongbo, 2023. "Experimental investigation the effects of Miller cycle coupled with asynchronous intake valves on cycle-to-cycle variations and performance of the SI engine," Energy, Elsevier, vol. 263(PD).
    2. Weichao Wang & Guiyong Wang & Zhengjiang Wang & Jilin Lei & Junwei Huang & Xuexuan Nie & Lizhong Shen, 2022. "Optimization of Miller Cycle, EGR, and VNT on Performance and NOx Emission of a Diesel Engine for Range Extender at High Altitude," Energies, MDPI, vol. 15(23), pages 1-20, November.
    3. Wang, Yi & He, Guanzhang & Huang, Haozhong & Guo, Xiaoyu & Xing, Kongzhao & Liu, Songtao & Tu, Zhanfei & Xia, Qi, 2023. "Thermodynamic and exergy analysis of high compression ratio coupled with late intake valve closing to improve thermal efficiency of two-stage turbocharged diesel engines," Energy, Elsevier, vol. 268(C).
    4. Liu, Qi & Guo, Tao & Fu, Jianqin & Dai, Hongliang & Liu, Jingping, 2022. "Experimental study on the effects of injection parameters and exhaust gas recirculation on combustion, emission and performance of Atkinson cycle gasoline direct-injection engine," Energy, Elsevier, vol. 238(PB).
    5. Shen, Kai & Xu, Zishun & Zhu, Zhongpan & Yang, Linsen, 2022. "Combined effects of electric supercharger and LP-EGR on performance of turbocharged engine," Energy, Elsevier, vol. 244(PB).
    6. Meng, Xianglong & Xie, Fangxi & Li, Xiaona & Han, Linghai & Duan, Jiaquan & Gong, Yanfeng & Zhou, You, 2024. "Study on the effects of intake valve timing and lift on the combustion and emission performance of ethanol, N-butanol, and gasoline engine under stoichiometric combustion and lean burn conditions," Energy, Elsevier, vol. 300(C).
    7. Wang, Rumin & Qiao, Junhao & Jia, Dongdong & Shen, Dazhi & Duan, Xiongbo & Liu, Jingping, 2024. "Effects of asynchronous late intake valve closing combined with high geometric compression ratio and exhaust gas recirculation on combustion and fuel consumption in a turbocharged SI engine:An experim," Energy, Elsevier, vol. 290(C).
    8. Zhou, Su & Fan, Lei & Zhang, Gang & Gao, Jianhua & Lu, Yanda & Zhao, Peng & Wen, Chaokai & Shi, Lin & Hu, Zhe, 2022. "A review on proton exchange membrane multi-stack fuel cell systems: architecture, performance, and power management," Applied Energy, Elsevier, vol. 310(C).
    9. Galindo, José & Navarro, Roberto & De la Morena, Joaquín & Pitarch, Rafael & Guilain, Stéphane, 2022. "On combustion instability induced by water condensation in a low-pressure exhaust gas recirculation system for spark-ignition engines," Energy, Elsevier, vol. 261(PA).

    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. Osorio, Julian D. & Rivera-Alvarez, Alejandro, 2018. "Efficiency enhancement of spark-ignition engines using a Continuous Variable Valve Timing system for load control," Energy, Elsevier, vol. 161(C), pages 649-662.
    2. Zhao, Jinxing, 2017. "Research and application of over-expansion cycle (Atkinson and Miller) engines – A review," Applied Energy, Elsevier, vol. 185(P1), pages 300-319.
    3. Zambalov, Sergey & Kasaev, Dmitry & Yakovlev, Igor & Ji, Changwei & Yang, Jinxin & Maznoy, Anatoly, 2024. "Effect of over-expansion in a cycloidal rotary engine," Energy, Elsevier, vol. 302(C).
    4. Li, Yangtao & Khajepour, Amir & Devaud, Cécile & Liu, Kaimin, 2017. "Power and fuel economy optimizations of gasoline engines using hydraulic variable valve actuation system," Applied Energy, Elsevier, vol. 206(C), pages 577-593.
    5. Li, Yangtao & Khajepour, Amir & Devaud, Cécile, 2018. "Realization of variable Otto-Atkinson cycle using variable timing hydraulic actuated valve train for performance and efficiency improvements in unthrottled gasoline engines," Applied Energy, Elsevier, vol. 222(C), pages 199-215.
    6. Gonca, Guven & Sahin, Bahri & Parlak, Adnan & Ayhan, Vezir & Cesur, Idris & Koksal, Sakip, 2017. "Investigation of the effects of the steam injection method (SIM) on the performance and emission formation of a turbocharged and Miller cycle diesel engine (MCDE)," Energy, Elsevier, vol. 119(C), pages 926-937.
    7. Teodosio, Luigi & Pirrello, Dino & Berni, Fabio & De Bellis, Vincenzo & Lanzafame, Rosario & D'Adamo, Alessandro, 2018. "Impact of intake valve strategies on fuel consumption and knock tendency of a spark ignition engine," Applied Energy, Elsevier, vol. 216(C), pages 91-104.
    8. Wang, Dan & Kuang, Minneng & Wang, Zhongshu & Su, Xing & Chen, Yiran & Jia, Demin, 2024. "Experimental study on the impact of Miller cycle coupled EGR on a natural gas engine," Energy, Elsevier, vol. 294(C).
    9. Curto-Risso, P.L. & Medina, A. & Calvo Hernández, A. & Guzmán-Vargas, L. & Angulo-Brown, F., 2011. "On cycle-to-cycle heat release variations in a simulated spark ignition heat engine," Applied Energy, Elsevier, vol. 88(5), pages 1557-1567, May.
    10. Gonca, Guven & Dobrucali, Erinc, 2016. "Theoretical and experimental study on the performance of a diesel engine fueled with diesel–biodiesel blends," Renewable Energy, Elsevier, vol. 93(C), pages 658-666.
    11. 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).
    12. Ashish J Chaudhari & Santosh K Hotta & Niranjan Sahoo & Vinayak Kulkarni, 2019. "Effect of vertical location of the spark plug on the performance of a raw biogas-fueled variable compression ratio spark ignition engine," Energy & Environment, , vol. 30(7), pages 1313-1338, November.
    13. Zhang, Zhijin & Zhang, Haiyan & Wang, Tianyou & Jia, Ming, 2014. "Effects of tumble combined with EGR (exhaust gas recirculation) on the combustion and emissions in a spark ignition engine at part loads," Energy, Elsevier, vol. 65(C), pages 18-24.
    14. Yuan, Zhipeng & Fu, Jianqin & Liu, Qi & Ma, Yinjie & Zhan, Zhangsong, 2018. "Quantitative study on influence factors of power performance of variable valve timing (VVT) engines and correction of its governing equation," Energy, Elsevier, vol. 157(C), pages 314-326.
    15. Ramasamy, D. & Zainal, Z.A. & Kadirgama, K. & Walker-Gitano Briggs, Horizon, 2016. "Effect of dissimilar valve lift on a bi-fuel CNG engine operation," Energy, Elsevier, vol. 112(C), pages 509-519.
    16. Pedrozo, Vinícius B. & Zhao, Hua, 2018. "Improvement in high load ethanol-diesel dual-fuel combustion by Miller cycle and charge air cooling," Applied Energy, Elsevier, vol. 210(C), pages 138-151.
    17. Pauras Sawant & Michael Warstler & Saiful Bari, 2018. "Exhaust Tuning of an Internal Combustion Engine by the Combined Effects of Variable Exhaust Pipe Diameter and an Exhaust Valve Timing System," Energies, MDPI, vol. 11(6), pages 1-16, June.
    18. Wang, Rumin & Qiao, Junhao & Jia, Dongdong & Shen, Dazhi & Duan, Xiongbo & Liu, Jingping, 2024. "Effects of asynchronous late intake valve closing combined with high geometric compression ratio and exhaust gas recirculation on combustion and fuel consumption in a turbocharged SI engine:An experim," Energy, Elsevier, vol. 290(C).
    19. Jehad Yamin, 2018. "Relative Change in SI Engine Power and Economy with Variable Valve Timing: Simulation and ANOVA Analysis," Modern Applied Science, Canadian Center of Science and Education, vol. 12(7), pages 113-113, July.
    20. Deng, Banglin & Yang, Jing & Zhang, Daming & Feng, Renhua & Fu, Jianqin & Liu, Jingping & Li, Ke & Liu, Xiaoqiang, 2013. "The challenges and strategies of butanol application in conventional engines: The sensitivity study of ignition and valve timing," Applied Energy, Elsevier, vol. 108(C), pages 248-260.

    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:eee:energy:v:215:y:2021:i:pb:s0360544220322234. 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: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/energy .

    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.