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    Influence of Intake Pipe Deflection Angle on In-Cylinder Flow and Combustion Characteristics of a Rotary Engine

    Source: Journal of Energy Resources Technology:;2021:;volume( 144 ):;issue: 008::page 82302-1
    Author:
    Deng, Xiwen
    ,
    Feng, Zhan
    ,
    Lei, Jilin
    ,
    Liu, Yi
    ,
    Jia, Dewen
    DOI: 10.1115/1.4052911
    Publisher: The American Society of Mechanical Engineers (ASME)
    Abstract: Intake pipe design is important for rotary engine performance due to great influence on in-cylinder flow and combustion characteristics. This paper analyzes the effect of intake pipe deflection angle on the performance of a gasoline rotary engine. In the parametric study, the intake pipe is deflected from the left to the right with a 10 deg interval and the maximum deflection range of 30 deg at each side. A computational fluid dynamics numerical simulation model of the rotary engine is established. The simulation results show that when the intake pipe is deflected to the left from the original design, the engine volumetric efficiency first increases and then decreases with an increasing deflection angle. During ignition, the turbulent kinetic energies in the cylinder increase with an increasing deflection angle. When the intake pipe is deflected to the left by 30 deg, the turbulent kinetic energy is increased by 85.9% compared to the original design. The peak cylinder pressures first increase and then decrease with an increasing deflection angle. When the intake pipe is deflected by 10 deg to the left, the peak cylinder pressure is 9.3% higher than that of the original design. The maximum NOx emission can be increased by 4.8% and the minimum NOx emission can be decreased by 13.3%. It is found that deflecting the intake pipe to the left enhances the tumble effect and increases the combustion velocity. Overall, deflecting the intake pipe to the right is less effective than deflecting to the left. This analysis provides a comprehensive understanding on intake pipe design for rotary engines.
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      Influence of Intake Pipe Deflection Angle on In-Cylinder Flow and Combustion Characteristics of a Rotary Engine

    URI
    http://yetl.yabesh.ir/yetl1/handle/yetl/4285420
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    • Journal of Energy Resources Technology

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    contributor authorDeng, Xiwen
    contributor authorFeng, Zhan
    contributor authorLei, Jilin
    contributor authorLiu, Yi
    contributor authorJia, Dewen
    date accessioned2022-05-08T09:39:41Z
    date available2022-05-08T09:39:41Z
    date copyright11/24/2021 12:00:00 AM
    date issued2021
    identifier issn0195-0738
    identifier otherjert_144_8_082302.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4285420
    description abstractIntake pipe design is important for rotary engine performance due to great influence on in-cylinder flow and combustion characteristics. This paper analyzes the effect of intake pipe deflection angle on the performance of a gasoline rotary engine. In the parametric study, the intake pipe is deflected from the left to the right with a 10 deg interval and the maximum deflection range of 30 deg at each side. A computational fluid dynamics numerical simulation model of the rotary engine is established. The simulation results show that when the intake pipe is deflected to the left from the original design, the engine volumetric efficiency first increases and then decreases with an increasing deflection angle. During ignition, the turbulent kinetic energies in the cylinder increase with an increasing deflection angle. When the intake pipe is deflected to the left by 30 deg, the turbulent kinetic energy is increased by 85.9% compared to the original design. The peak cylinder pressures first increase and then decrease with an increasing deflection angle. When the intake pipe is deflected by 10 deg to the left, the peak cylinder pressure is 9.3% higher than that of the original design. The maximum NOx emission can be increased by 4.8% and the minimum NOx emission can be decreased by 13.3%. It is found that deflecting the intake pipe to the left enhances the tumble effect and increases the combustion velocity. Overall, deflecting the intake pipe to the right is less effective than deflecting to the left. This analysis provides a comprehensive understanding on intake pipe design for rotary engines.
    publisherThe American Society of Mechanical Engineers (ASME)
    titleInfluence of Intake Pipe Deflection Angle on In-Cylinder Flow and Combustion Characteristics of a Rotary Engine
    typeJournal Paper
    journal volume144
    journal issue8
    journal titleJournal of Energy Resources Technology
    identifier doi10.1115/1.4052911
    journal fristpage82302-1
    journal lastpage82302-9
    page9
    treeJournal of Energy Resources Technology:;2021:;volume( 144 ):;issue: 008
    contenttypeFulltext
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