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Analysis of Hydrocarbon Mixture Performance of a Dual-Channel Swirl Engine

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Abstract

In order to understand and improve the oil and gas mixing performance of a dual-channel vortex chamber diesel engine, the BH175F dual-channel vortex chamber combustion system was used as the research foundation, and the oil-gas mixture process of the combustion system was numerically analyzed. By analyzing the cylinder temperature, cylinder pressure, mixing process and combustion process of the combustion system, the mixture performance of the combustion system was studied. Results indicated that: The mixture of the compression Top Dead Center (TDC) started to enter the main combustion chamber through the start-up hole; when the piston reached 4° After Top Dead Center (ATDC), the mixture started to enter the main combustion chamber through the connecting channels A and B, and the high-concentration mixture entered the main combustion from the start-up hole; when the piston continued running down to 20° and 25° ATDC, it could be seen that the main combustion chamber mixture was already relatively uniform; besides, when the equivalence ratio was between 0.8 and 1, the air-fuel mixture was unevenly distributed in the main combustion chamber. It provides guidance for further improvement of the combustion system.

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Acknowledgments

This work was financially supported by the Scientific Research Project of Hunan Provincial Department of Education (No.18A395, No.19A453), Key Research Projects of the Science and Technology Plan of Hunan Provincial Department of Science and Technology (2018GK2074), and Shaoyang College Graduate Research and Innovation Project (CX2017SY001). This work is supported by the Ministry of Education China. The finical support is gratefully acknowledged.

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Authors and Affiliations

  1. School of Mechanical and Energy Engineering, Shaoyang University, Shaoyang, 422004, China

    Wenhua Yuan, Qilin Huang, Jun Fu, Jingjing Liao, Yong He, Zengfeng Zhang & Yi Ma

  2. State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha, 410082, China

    Yu Li

  3. Key Laboratory of Hunan Province for Efficient Power System and Intelligent Manufacturing, Shaoyang University, Shaoyang, 422000, China

    Wenhua Yuan, Qilin Huang, Jun Fu, Jingjing Liao, Yong He, Zengfeng Zhang & Yi Ma

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  1. Wenhua Yuan
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  2. Qilin Huang
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  3. Jun Fu
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  4. Jingjing Liao
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  5. Yu Li
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  6. Yong He
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  7. Zengfeng Zhang
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  8. Yi Ma
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Correspondence to Wenhua Yuan or Jun Fu.

Additional information

Article type: Contributed by the 1st International Conference of Thermal Fluid Dynamics and Control (August 02–06, 2019, in Christchurch 8140 New Zealand) for publication in Journal of Thermal Science.

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Yuan, W., Huang, Q., Fu, J. et al. Analysis of Hydrocarbon Mixture Performance of a Dual-Channel Swirl Engine. J. Therm. Sci. 29, 1391–1397 (2020). https://doi.org/10.1007/s11630-020-1372-5

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  • DOI: https://doi.org/10.1007/s11630-020-1372-5

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