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An investigation of the effect of plateau environment on the soot generation and oxidation in diesel engines

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  • Zhang, Chunhua
  • Li, Yangyang
  • Liu, Zhentao
  • Liu, Jinlong

Abstract

The plateau environment deteriorates the combustion quality inside the heavy duty diesel engine, bringing difficulties in controlling soot emissions. To study the causes of soot increase is the basis for optimizing highland engines and achieving clean operation. A multidimensional CFD model based on a 6V150 engine was developed in this study to investigate the effect of altitude on soot formation and oxidation processes. The comparison between experimental data and numerical results showed that the model was deemed to be able to predict in-cylinder activities at various altitudes. The simulation results showed that when the diesel engine was operated at high altitude, the mismatch between fuel and air led to more soot formation but less oxidized. The wall impingement of fuel droplets occurred at altitudes above 3000 m and soot emissions rose sharply when the altitude exceeded 4000 m. It can be concluded that the engine recalibration strategy may mitigate the increase in soot at altitudes below 3000 m, but may not be very effective when the engine is operating at 4000 m. In addition, the application of oxygenated fuels that can provide more hydroxyl radicals may be an alternative solution to mitigate soot emissions from diesel engines operating in very high altitude regions.

Suggested Citation

  • Zhang, Chunhua & Li, Yangyang & Liu, Zhentao & Liu, Jinlong, 2022. "An investigation of the effect of plateau environment on the soot generation and oxidation in diesel engines," Energy, Elsevier, vol. 253(C).
    • Handle: RePEc:eee:energy:v:253:y:2022:i:c:s0360544222009896
    DOI: 10.1016/j.energy.2022.124086
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    References listed on IDEAS

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    1. Kan, Zechao & Hu, Zhiyuan & Lou, Diming & Tan, Piqiang & Cao, Zhiyi & Yang, Zhenhuan, 2018. "Effects of altitude on combustion and ignition characteristics of speed-up period during cold start in a diesel engine," Energy, Elsevier, vol. 150(C), pages 164-175.
    2. Nabavi-Pelesaraei, Ashkan & Azadi, Hossein & Van Passel, Steven & Saber, Zahra & Hosseini-Fashami, Fatemeh & Mostashari-Rad, Fatemeh & Ghasemi-Mobtaker, Hassan, 2021. "Prospects of solar systems in production chain of sunflower oil using cold press method with concentrating energy and life cycle assessment," Energy, Elsevier, vol. 223(C).
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    Citations

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    1. Chengguan Wang & Xiaozhi Qi & Tao Wang & Diming Lou & Piqiang Tan & Zhiyuan Hu & Liang Fang & Rong Yang, 2023. "Role of Altitude in Influencing the Spray Combustion Characteristics of a Heavy-Duty Diesel Engine in a Constant Volume Combustion Chamber. Part I: Free Diesel Jet," Energies, MDPI, vol. 16(12), pages 1-25, June.
    2. Liu, Jinlong & Wang, Bosen & Meng, Zhongwei & Liu, Zhentao, 2023. "An examination of performance deterioration indicators of diesel engines on the plateau," Energy, Elsevier, vol. 262(PB).
    3. Jia, Guohai & Gao, Sheng & Shu, Xiong & Ren, Bing & Zhang, Bin & Ma, Guangyu & Zhang, Jian & Liu, Hui & Li, Dongmei, 2024. "Multi-objective optimization of emission parameters of a diesel engine using oxygenated fuel and pilot injection strategy based on RSM-NSGA III," Energy, Elsevier, vol. 293(C).
    4. Zhao, Weihua & Yan, Junhao & Gao, Suya & Lee, Timothy H. & Li, Xiangrong, 2022. "The combustion and emission characteristics of a common-rail diesel engine fueled with diesel and higher alcohols blends with a high blend ratio," Energy, Elsevier, vol. 261(PB).
    5. Serrano, José Ramón & Martín, Jaime & Piqueras, Pedro & Tabet, Roberto & Gómez, Javier, 2023. "Effect of natural and forced charge air humidity on the performance and emissions of a compression-ignition engine operating at high warm altitude," Energy, Elsevier, vol. 266(C).
    6. Yuan, Chenheng & Peng, Shizhuo & Zhou, Lifu, 2023. "Multi-field coupling effect of injection on dynamics and thermodynamics of a linear combustion engine generator with slow compression and fast expansion," Energy, Elsevier, vol. 270(C).
    7. Zhipeng Li & Qiang Zhang & Fujun Zhang & Hongbo Liang & Yu Zhang, 2023. "Investigation of Effect of Nozzle Numbers on Diesel Engine Performance Operated at Plateau Environment," Sustainability, MDPI, vol. 15(11), pages 1-20, May.

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