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Quantitative study on influence factors of power performance of variable valve timing (VVT) engines and correction of its governing equation

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  • Yuan, Zhipeng
  • Fu, Jianqin
  • Liu, Qi
  • Ma, Yinjie
  • Zhan, Zhangsong

Abstract

The influences of VVT on engine power performance were well summarized in previous studies from various aspects. However, most of the previous investigations were qualitative analysis and focused on the total effects of VVT without decoupling the influence factors. The primary cause is due to lack of an effective mathematic model to predict the IMEP of VVT engine. In this study, an approach to detect the VVT signals of engine was proposed, and the influence factors of power performance of VVT engines were quantitatively studied. The fundamental relationships among IMEP and its influencing parameters, i.e., intake density, intake VVT, RGF and thermal efficiency, were decoupled and the governing equation of IMEP was derived with the influences of VVT considered, the calculated results through which are in good agreement with tested data. Results indicate that, IMEP is directly proportional to effective cylinder volume at IVC timing and inversely proportional to RGF. The change rate of RGF influence coefficient is almost three times as that of RGF, and the combined effects of these parameters on IMEP equals the product of the coefficients of four influence factors. All these extended engine thermodynamics and provided theory basis for improving VVT engine's power performance.

Suggested Citation

  • 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.
    • Handle: RePEc:eee:energy:v:157:y:2018:i:c:p:314-326
    DOI: 10.1016/j.energy.2018.05.135
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    1. Fu, Jianqin & Liu, Jingping & Ren, Chengqin & Wang, Linjun & Deng, Banglin & Xu, Zhengxin, 2012. "An open steam power cycle used for IC engine exhaust gas energy recovery," Energy, Elsevier, vol. 44(1), pages 544-554.
    2. 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.
    3. Costa, M. & Marchitto, L. & Merola, S.S. & Sorge, U., 2014. "Study of mixture formation and early flame development in a research GDI (gasoline direct injection) engine through numerical simulation and UV-digital imaging," Energy, Elsevier, vol. 77(C), pages 88-96.
    4. 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.
    5. An, Yan-zhao & Pei, Yi-qiang & Qin, Jing & Zhao, Hua & Teng, Sheng-ping & Li, Bing & Li, Xiang, 2016. "Development of a PAH (polycyclic aromatic hydrocarbon) formation model for gasoline surrogates and its application for GDI (gasoline direct injection) engine CFD (computational fluid dynamics) simulat," Energy, Elsevier, vol. 94(C), pages 367-379.
    6. Jafarmadar, Samad & Nemati, Peyman, 2017. "Analysis of Exhaust Gas Recirculation (EGR) effects on exergy terms in an engine operating with diesel oil and hydrogen," Energy, Elsevier, vol. 126(C), pages 746-755.
    7. 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.
    8. Sher, E. & Bar-Kohany, T., 2002. "Optimization of variable valve timing for maximizing performance of an unthrottled SI engine—a theoretical study," Energy, Elsevier, vol. 27(8), pages 757-775.
    9. Wu, Han & Nithyanandan, Karthik & Zhang, Jiaxiang & Lin, Yilu & Lee, Timothy H. & Lee, Chia-fon F. & Zhang, Chunhua, 2015. "Impacts of Acetone–Butanol–Ethanol (ABE) ratio on spray and combustion characteristics of ABE–diesel blends," Applied Energy, Elsevier, vol. 149(C), pages 367-378.
    10. Wei, Haiqiao & Feng, Dengquan & Pan, Jiaying & Shao, Aifang & Pan, Mingzhang, 2017. "Knock characteristics of SI engine fueled with n-butanol in combination with different EGR rate," Energy, Elsevier, vol. 118(C), pages 190-196.
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