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

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  • 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.

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  • 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
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    References listed on IDEAS

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    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.
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    Cited by:

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    2. 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).
    3. 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).
    4. 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).
    5. 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).
    6. 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).
    7. 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).

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