Simulation of the effect of intake charge oxygen concentration based EGR on diesel engine performance

Xiao Hui An; Bo Lan Liu; Fu Jun Zhang; Geng Fu

Simulation of the effect of intake charge oxygen concentration based EGR on diesel engine performance

Xiao Hui An, Bo Lan Liu^*, Fu Jun Zhang, Geng Fu

^*Corresponding author for this work

School of Mechanical Engineering

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

Conventional EGR controlling methods do not consider the influences of intake charge and its composition on engine combustion characteristics, So it is hard to meet the requirements of emission control under transient conditions. This paper qualitatively analyzes the inhibition mechanism of EGR on NO_x. Through GT-Power model of TCD2015V06 diesel engine, the quantitative analyses of the effects of thermal effect, dilution effect and chemical effect of EGR as well as intake charge decreasing on engine combustion and emissions are made. Simulation results show that dilution effect and lowering of cylinder total heat capacity play a dominant role on the effect of NO_x formation. Intake oxygen concentration and intake oxygen flow are two important parameters reflecting NO_x and Soot emission respectively. The study provides support to a new EGR controlling method.

Original language	English
Pages (from-to)	115-119
Number of pages	5
Journal	Neiranji Xuebao/Transactions of CSICE (Chinese Society for Internal Combustion Engines)
Volume	31
Issue number	2
Publication status	Published - Mar 2013

Keywords

Diesel engine
Emissions
Exhaust gas recirculation
Oxygen concentration
Oxygen flow

Cite this

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title = "Simulation of the effect of intake charge oxygen concentration based EGR on diesel engine performance",

abstract = "Conventional EGR controlling methods do not consider the influences of intake charge and its composition on engine combustion characteristics, So it is hard to meet the requirements of emission control under transient conditions. This paper qualitatively analyzes the inhibition mechanism of EGR on NOx. Through GT-Power model of TCD2015V06 diesel engine, the quantitative analyses of the effects of thermal effect, dilution effect and chemical effect of EGR as well as intake charge decreasing on engine combustion and emissions are made. Simulation results show that dilution effect and lowering of cylinder total heat capacity play a dominant role on the effect of NOx formation. Intake oxygen concentration and intake oxygen flow are two important parameters reflecting NOx and Soot emission respectively. The study provides support to a new EGR controlling method.",

keywords = "Diesel engine, Emissions, Exhaust gas recirculation, Oxygen concentration, Oxygen flow",

author = "An, {Xiao Hui} and Liu, {Bo Lan} and Zhang, {Fu Jun} and Geng Fu",

year = "2013",

month = mar,

language = "English",

volume = "31",

pages = "115--119",

journal = "Neiranji Xuebao/Transactions of CSICE (Chinese Society for Internal Combustion Engines)",

issn = "1000-0909",

publisher = "Chinese Society for Internal Combustion Engines",

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TY - JOUR

T1 - Simulation of the effect of intake charge oxygen concentration based EGR on diesel engine performance

AU - An, Xiao Hui

AU - Liu, Bo Lan

AU - Zhang, Fu Jun

AU - Fu, Geng

PY - 2013/3

Y1 - 2013/3

N2 - Conventional EGR controlling methods do not consider the influences of intake charge and its composition on engine combustion characteristics, So it is hard to meet the requirements of emission control under transient conditions. This paper qualitatively analyzes the inhibition mechanism of EGR on NOx. Through GT-Power model of TCD2015V06 diesel engine, the quantitative analyses of the effects of thermal effect, dilution effect and chemical effect of EGR as well as intake charge decreasing on engine combustion and emissions are made. Simulation results show that dilution effect and lowering of cylinder total heat capacity play a dominant role on the effect of NOx formation. Intake oxygen concentration and intake oxygen flow are two important parameters reflecting NOx and Soot emission respectively. The study provides support to a new EGR controlling method.

AB - Conventional EGR controlling methods do not consider the influences of intake charge and its composition on engine combustion characteristics, So it is hard to meet the requirements of emission control under transient conditions. This paper qualitatively analyzes the inhibition mechanism of EGR on NOx. Through GT-Power model of TCD2015V06 diesel engine, the quantitative analyses of the effects of thermal effect, dilution effect and chemical effect of EGR as well as intake charge decreasing on engine combustion and emissions are made. Simulation results show that dilution effect and lowering of cylinder total heat capacity play a dominant role on the effect of NOx formation. Intake oxygen concentration and intake oxygen flow are two important parameters reflecting NOx and Soot emission respectively. The study provides support to a new EGR controlling method.

KW - Diesel engine

KW - Emissions

KW - Exhaust gas recirculation

KW - Oxygen concentration

KW - Oxygen flow

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SN - 1000-0909

VL - 31

SP - 115

EP - 119

JO - Neiranji Xuebao/Transactions of CSICE (Chinese Society for Internal Combustion Engines)

JF - Neiranji Xuebao/Transactions of CSICE (Chinese Society for Internal Combustion Engines)

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ER -

Simulation of the effect of intake charge oxygen concentration based EGR on diesel engine performance

Abstract

Keywords

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