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Effect of different exhaust parameters on NO conversion efficiency enhancement of a dual-carrier catalytic converter in the gasoline engine

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  • Zuo, Qingsong
  • Xie, Yong
  • E, Jiaqiang
  • Zhu, Xinning
  • Zhang, Bin
  • Tang, Yuanyou
  • Zhu, Guohui
  • Wang, Zhiqi
  • Zhang, Jianping

Abstract

The high NO2 concentration in the gasoline engine exhaust gas is beneficial to improve the regenerative equilibrium performance of the catalytic particulate filter regeneration system. In this work, the effect of exhaust parameters on NO conversion efficiency of a dual-carrier catalytic converter is simulated. The reliable operating temperature range and NO2 mass fraction distribution of dual-carrier catalytic converter under different exhaust parameters are analyzed and the simulation results are verified by the experimental values. The main results are presented as follows: (1) The maximum of NO conversion efficiency is 68% when the exhaust gas temperature is 600 K. (2) The maximum value of NO conversion efficiency is increased by 30% when the exhaust gas flow is reduced from 0.025 kg/s to 0.01 kg/s (3)The maximum value of NO conversion efficiency is increased by 14% when the oxygen concentration from the exhaust is increased from 1.4% to 5%. (4) The orthogonal experimental results show that when the exhaust gas temperature is constant at 600 K, the exhaust gas flow has the most significant influence on the NO conversion efficiency. Finally, some guidelines are proposed to improve the NO conversion efficiency of the dual-carrier catalytic converter.

Suggested Citation

  • Zuo, Qingsong & Xie, Yong & E, Jiaqiang & Zhu, Xinning & Zhang, Bin & Tang, Yuanyou & Zhu, Guohui & Wang, Zhiqi & Zhang, Jianping, 2020. "Effect of different exhaust parameters on NO conversion efficiency enhancement of a dual-carrier catalytic converter in the gasoline engine," Energy, Elsevier, vol. 191(C).
    • Handle: RePEc:eee:energy:v:191:y:2020:i:c:s0360544219322169
    DOI: 10.1016/j.energy.2019.116521
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    Cited by:

    1. Zhu, Xinning & Zuo, Qingsong & Tang, Yuanyou & Xie, Yong & Shen, Zhuang & Yang, Xiaomei, 2022. "Performance enhancement of equilibrium regeneration in a gasoline particulate filter based on field synergy theory," Energy, Elsevier, vol. 244(PA).
    2. Shui, Haoche & Wang, Yuan & Li, Qiuran & Fan, Cunhan & Li, Yanwei & Zeng, Yijian & Guo, Wei, 2024. "Analysis of heat transfer performance and system energy efficiency of catalytic combustion heaters for low calorific value waste gas application to oil shale in-situ conversion," Energy, Elsevier, vol. 294(C).
    3. Gong, Zhen & Feng, Liyan & Wei, Lai & Qu, Wenjing & Li, Lincheng, 2020. "Shock tube and kinetic study on ignition characteristics of lean methane/n-heptane mixtures at low and elevated pressures," Energy, Elsevier, vol. 197(C).
    4. Tan, Yan & Kou, Chuanfu & E, Jiaqiang & Feng, Changlin & Han, Dandan, 2024. "Effect of different exhaust parameters on conversion efficiency enhancement of a Pd–Rh three-way catalytic converter for heavy-duty natural gas engines," Energy, Elsevier, vol. 292(C).
    5. Feng, Changling & Deng, Yuanwang & Chen, Lehan & Han, Wei & E, Jiaqiang & Wei, Kexiang & Han, Dandan & Zhang, Bin, 2022. "Hydrocarbon emission control of a hydrocarbon adsorber and converter under cold start of the gasoline engine," Energy, Elsevier, vol. 239(PB).

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