Modeling of gasoline compression ignition engine in partially premixed combustion mode

Yanzhao An; Qinglong Tang; Raman Vallinayagam; Hao Shi; Jaeheon Sim; Junseok Chang; Gaetano Magnotti; Hong G. Im; Bengt Johansson

Modeling of gasoline compression ignition engine in partially premixed combustion mode

Yanzhao An, Qinglong Tang, Raman Vallinayagam, Hao Shi, Jaeheon Sim, Junseok Chang, Gaetano Magnotti, Hong G. Im, Bengt Johansson

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

This study aims to model partially premixed combustion (PPC) with flame index concept for low-octane gasoline in compression ignition (CI) engine. The validation experiment was carried out in a full-transparent AVL single optical CI engine. Fuel injection timing was fixed at -30 CAD aTDC to achieve PPC operation condition. Primary reference fuel, PRF77, with octane number of 77, was selected as test low-octane gasoline surrogate fuel. Multiple optical diagnostics were performed to validate numerical simulations, including high-speed color imaging and spray-tracer planar laser-induced fluorescence (PLIF) imaging. Full cycle engine simulations were performed using a CFD code CONVERGETM. The Takeno flame index was used to analyze the evolution of premixed and non-premixed flames. The simulation results show that the flame index could be used as a useful indicator for evaluating and quantifying combustion development under PPC operating condition. Premixed flames distribution is more consistent with the relatively low-temperature contour of 1500 K, most of the fuel/air mixture is burned out and less premixed flames exits at higher temperature contour of 2300 K.

Original language	English (US)
Title of host publication	12th Asia-Pacific Conference on Combustion, ASPACC 2019
Publisher	Combustion Institute
State	Published - Jan 1 2019

Bibliographical note

KAUST Repository Item: Exported on 2020-11-13
Acknowledgements: This work was funded by competitive research funding from King Abdullah University of Science and Technology (KAUST), and by Saudi Aramco under the FUELCOM-II program. The authors would like to thank Convergent Science for providing licenses for the CONVERGE software.

Cite this

@inproceedings{46e635588a9c4daea39e0546b6eb92c1,

title = "Modeling of gasoline compression ignition engine in partially premixed combustion mode",

abstract = "This study aims to model partially premixed combustion (PPC) with flame index concept for low-octane gasoline in compression ignition (CI) engine. The validation experiment was carried out in a full-transparent AVL single optical CI engine. Fuel injection timing was fixed at -30 CAD aTDC to achieve PPC operation condition. Primary reference fuel, PRF77, with octane number of 77, was selected as test low-octane gasoline surrogate fuel. Multiple optical diagnostics were performed to validate numerical simulations, including high-speed color imaging and spray-tracer planar laser-induced fluorescence (PLIF) imaging. Full cycle engine simulations were performed using a CFD code CONVERGETM. The Takeno flame index was used to analyze the evolution of premixed and non-premixed flames. The simulation results show that the flame index could be used as a useful indicator for evaluating and quantifying combustion development under PPC operating condition. Premixed flames distribution is more consistent with the relatively low-temperature contour of 1500 K, most of the fuel/air mixture is burned out and less premixed flames exits at higher temperature contour of 2300 K.",

author = "Yanzhao An and Qinglong Tang and Raman Vallinayagam and Hao Shi and Jaeheon Sim and Junseok Chang and Gaetano Magnotti and Im, {Hong G.} and Bengt Johansson",

note = "KAUST Repository Item: Exported on 2020-11-13 Acknowledgements: This work was funded by competitive research funding from King Abdullah University of Science and Technology (KAUST), and by Saudi Aramco under the FUELCOM-II program. The authors would like to thank Convergent Science for providing licenses for the CONVERGE software.",

year = "2019",

month = jan,

day = "1",

language = "English (US)",

booktitle = "12th Asia-Pacific Conference on Combustion, ASPACC 2019",

publisher = "Combustion Institute",

}

TY - GEN

T1 - Modeling of gasoline compression ignition engine in partially premixed combustion mode

AU - An, Yanzhao

AU - Tang, Qinglong

AU - Vallinayagam, Raman

AU - Shi, Hao

AU - Sim, Jaeheon

AU - Chang, Junseok

AU - Magnotti, Gaetano

AU - Im, Hong G.

AU - Johansson, Bengt

N1 - KAUST Repository Item: Exported on 2020-11-13 Acknowledgements: This work was funded by competitive research funding from King Abdullah University of Science and Technology (KAUST), and by Saudi Aramco under the FUELCOM-II program. The authors would like to thank Convergent Science for providing licenses for the CONVERGE software.

PY - 2019/1/1

Y1 - 2019/1/1

N2 - This study aims to model partially premixed combustion (PPC) with flame index concept for low-octane gasoline in compression ignition (CI) engine. The validation experiment was carried out in a full-transparent AVL single optical CI engine. Fuel injection timing was fixed at -30 CAD aTDC to achieve PPC operation condition. Primary reference fuel, PRF77, with octane number of 77, was selected as test low-octane gasoline surrogate fuel. Multiple optical diagnostics were performed to validate numerical simulations, including high-speed color imaging and spray-tracer planar laser-induced fluorescence (PLIF) imaging. Full cycle engine simulations were performed using a CFD code CONVERGETM. The Takeno flame index was used to analyze the evolution of premixed and non-premixed flames. The simulation results show that the flame index could be used as a useful indicator for evaluating and quantifying combustion development under PPC operating condition. Premixed flames distribution is more consistent with the relatively low-temperature contour of 1500 K, most of the fuel/air mixture is burned out and less premixed flames exits at higher temperature contour of 2300 K.

AB - This study aims to model partially premixed combustion (PPC) with flame index concept for low-octane gasoline in compression ignition (CI) engine. The validation experiment was carried out in a full-transparent AVL single optical CI engine. Fuel injection timing was fixed at -30 CAD aTDC to achieve PPC operation condition. Primary reference fuel, PRF77, with octane number of 77, was selected as test low-octane gasoline surrogate fuel. Multiple optical diagnostics were performed to validate numerical simulations, including high-speed color imaging and spray-tracer planar laser-induced fluorescence (PLIF) imaging. Full cycle engine simulations were performed using a CFD code CONVERGETM. The Takeno flame index was used to analyze the evolution of premixed and non-premixed flames. The simulation results show that the flame index could be used as a useful indicator for evaluating and quantifying combustion development under PPC operating condition. Premixed flames distribution is more consistent with the relatively low-temperature contour of 1500 K, most of the fuel/air mixture is burned out and less premixed flames exits at higher temperature contour of 2300 K.

UR - http://hdl.handle.net/10754/665933

UR - http://www.combustionsociety.jp/aspacc19/program_final0711.html#CH0238

UR - http://www.scopus.com/inward/record.url?scp=85083951576&partnerID=8YFLogxK

M3 - Conference contribution

BT - 12th Asia-Pacific Conference on Combustion, ASPACC 2019

PB - Combustion Institute

ER -

Modeling of gasoline compression ignition engine in partially premixed combustion mode

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Bibliographical note

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