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Optimization Analysis of Engine Intake System Based on Coupling Matlab-Simulink with GT-Power

Author

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  • Feng Jiang
  • Minghai Li
  • Jiayan Wen
  • Zedan Tan
  • Wenyun Zhou

Abstract

In the work, the suitable volumetric efficiency is very important for the gasoline engine to achieve the aim of energy-saving and emission reduction. Thus, the intake system characteristics, such as intake manifold length, diameter, volumetric efficiency, and valve phase, should be investigated in detail. In order to investigate the performance optimization of the engine intake system, an optimization model of the engine intake system is developed by the GT-Power coupled with Matlab-Simulink and validated by the experimental results under the different conditions at full load. The engine power-, torque-, and brake-specific fuel consumption are defined as the result variables of the optimization model, and the length and diameter of the intake manifold are defined as the independent variables of the model. The results show that the length of intake manifold has little influence on the engine power and BSFC, and the length of intake manifold has a great impact on the performance index at high speed. In addition, the engine volumetric efficiency is the highest when the length of intake manifold is in the range of 240 and 250 mm. The engine BSFC improved by variable valve timing is significant compared with the original result. Finally, the improvement suggestions for the performance enhancement of the gasoline engine are proposed.

Suggested Citation

  • Feng Jiang & Minghai Li & Jiayan Wen & Zedan Tan & Wenyun Zhou, 2021. "Optimization Analysis of Engine Intake System Based on Coupling Matlab-Simulink with GT-Power," Mathematical Problems in Engineering, Hindawi, vol. 2021, pages 1-17, April.
  • Handle: RePEc:hin:jnlmpe:6673612
    DOI: 10.1155/2021/6673612
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