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Simulation Study of EGR Systems for a Turbocharged Diesel Engine

Kangyao Deng

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Abstract

The use of an exhaust gas recirculation (EGR) for a turbocharged diesel engine has confronted how to obtain the amount of EGR for NO x reduction requirement at higher engine loads and with less side effects.This paper presents the study of such a problem.Three EGR systems,rotary valve,one-direction valve and short EGR pipe,are introduced in which pressure pulsations in intake and exhaust manifolds have been utilized.The simulation results show that a large EGR amount can be achieved at higher engine loads and even at full engine loads by using these systems.

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What this paper is about

The use of an exhaust gas recirculation (EGR) for a turbocharged diesel engine has confronted how to obtain the amount of EGR for NO x reduction requirement at higher engine loads and with less side effects.This paper presents the study of such a problem.Three EGR systems,rotary valve,one-direction valve and short EGR pipe,are introduced in which pressure pulsations in intake and exhaust manifolds have been utilized.The simulation results show that a large EGR amount can be achieved at higher engine loads and even at full engine loads by using these systems.

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Available abstract

The use of an exhaust gas recirculation (EGR) for a turbocharged diesel engine has confronted how to obtain the amount of EGR for NO x reduction requirement at higher engine loads and with less side effects.This paper presents the study of such a problem.Three EGR systems,rotary valve,one-direction valve and short EGR pipe,are introduced in which pressure pulsations in intake and exhaust manifolds have been utilized.The simulation results show that a large EGR amount can be achieved at higher engine loads and even at full engine loads by using these systems.

Key concepts: Turbocharger, Exhaust gas recirculation, Automotive engineering, Diesel engine, Environmental science, Engineering, Internal combustion engine, Mechanical engineering

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