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Influence of exhaust gas recirculation on the performance of a lateral-swirl combustion system
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Yifan Wang1, Xiangrong Li1, Qingxu Zhao2, Jiang Chang1
Transactions of CSICE | 2025, 43(4) : 297 - 305
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Transactions of CSICE | 2025, 43(4): 297-305
Influence of exhaust gas recirculation on the performance of a lateral-swirl combustion system
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Yifan Wang1, Xiangrong Li1, Qingxu Zhao2, Jiang Chang1
Affiliations
  • 1.School of Mechanical Engineering，Beijing Institute of Technology，Beijing 100081，China
  • 2.Hebei Huabei Diesel Engine Company Limited，Shijiazhuang 050200，China
Published: 2025-07-25 doi: 10.16236/j.cnki.nrjxb.202504034
Outline
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A lateral-swirl combustion system(LSCS) was used to deal with the challenges of deteriorated combustion performance and increased soot emission after implementing exhaust gas recirculation(EGR) in direct-injection diesel engines. An in-cylinder combustion 3-dimensional simulation of the LSCS and a traditional ω combustion system was conducted under medium and high load conditions at the speed of 1800r/min and 2500r/min, respectively. The results indicate that, under the same NOx emission levels, the LSCS allows a higher EGR rate compared to the ω combustion system, resulting in an increase of the indicated power from 1.1% to 1.3%. Under the same indicated power conditions, the LSCS can accommodate a higher EGR rate while reducing NOx emissions by 35.9% to 45.6% and soot emissions by 27.9% to 49.4%, respectively. Furthermore, the results suggest that the wall-flow-guided structure of the LSCS promotes the fuel jet expansion in the cylinder to be fully mixed with the air, enhancing its compatibility with EGR.

direct-injection diesel engine  /  exhaust gas recirculation  /  ω combustion system  /  lateral-swirl combustion system
王亦凡, 李向荣, 赵清旭, 常江. 废气再循环对侧卷流燃烧系统性能的影响. 内燃机学报, 2025 , 43 (4) : 297 -305 . DOI: 10.16236/j.cnki.nrjxb.202504034
Yifan Wang, Xiangrong Li, Qingxu Zhao, Jiang Chang. Influence of exhaust gas recirculation on the performance of a lateral-swirl combustion system[J]. Transactions of CSICE, 2025 , 43 (4) : 297 -305 . DOI: 10.16236/j.cnki.nrjxb.202504034
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Year 2025 volume 43 Issue 4
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Article Info
doi: 10.16236/j.cnki.nrjxb.202504034
  • Receive Date：2024-09-29
  • Online Date：2026-11-06
  • Published：2025-07-25
Article Data
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History
  • Received：2024-09-29
  • Revised：2025-01-07
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Affiliations
    1.School of Mechanical Engineering，Beijing Institute of Technology，Beijing 100081，China
    2.Hebei Huabei Diesel Engine Company Limited，Shijiazhuang 050200，China
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光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
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