The Dilution, Chemical, and Thermal Effects of Exhaust Gas Recirculation on Diesel Engine Emissions - Part 1: Effect of Reducing Inlet Charge Oxygen

Ladommatos, Nicos; Abdelhalim, S. M.; Zhao, Hua; Hu, Zhongzhi

doi:10.4271/961165

Cited by 149 publications

(75 citation statements)

References 24 publications

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“…Ladommatos et al [17][18][19][20] presented a series of works focused on understanding the influence of EGR on combustion and emissions in a four-cylinder diesel engine. To simulate the different effects of EGR, the authors added synthetic gases in the engine intake manifold.…”

Section: Introductionmentioning

confidence: 99%

Effects of EGR rate on performance and emissions of a diesel power generator fueled by B7

Serio

Oliveira

Sodré

2017

J Braz. Soc. Mech. Sci. Eng.

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Section: Introductionmentioning

confidence: 99%

Effects of EGR rate on performance and emissions of a diesel power generator fueled by B7

Serio

Oliveira

Sodré

2017

J Braz. Soc. Mech. Sci. Eng.

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“…Other problems attached to the HPEGR systems are the important increment in intake temperature despite employing EGR coolers [9] and the difficulty to provide a homogeneous intake charge between cylinders [10]. The increase in intake temperature leads to a reduction in the admitted charge, by means of the thermal throttling effect reported in [11,12]. Moreover, the short distance amongst the EGR inlet and the cylinder ports prevents from a uniform EGR distribution.…”

Section: Introductionmentioning

confidence: 99%

On the combination of high-pressure and low-pressure exhaust gas recirculation loops for improved fuel economy and reduced emissions in high-speed direct-injection engines

Desantes

Luján

Plá

et al. 2012

International Journal of Engine Research

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SAGE Publications (UK and US)Desantes Fernández, JM.; Luján, JM.; Pla Moreno, B.; Soler Muniesa, JA. (2013). On the combination of high-pressure and low-pressure exhaust gas recirculation loops for improved fuel economy and reduced emissions in high-speed direct-injection engines. International Journal of Engine Research. 14(1):3-11. doi:10.1177/1468087412437623. On the combination of High Pressure and Low Pressure EGR loops for improved fuel economy and reduced emissions in HSDI enginesJosé M. Desantes, José M. Luján, Benjamín Pla, José A. Soler CMT -Motores Térmicos. Universidad Politécnica de Valencia. AbstractIn this paper, an experimental study of the combination of Low Pressure and High Pressure EGR architectures has been carried out. In the first part of the paper, the effects of both High Pressure and Low Pressure EGR architectures on engine behaviour and performance are analysed by means of a series of steady tests. In the second part, the effects of the combination of both architectures are addressed. The results shown that the Low Pressure configuration improves High Pressure EGR results in BSFC, NO x and exhaust gas opacity, nevertheless the HC emissions are increased, especially during the engine warm up. In addition, the EGR rate that can be achieved with Low Pressure systems is limited by the low pressure difference between DPF outlet and compressor inlet, and the High Pressure system can be used to achieve the required EGR levels without increasing pumping losses. In this sense, the combination of both EGR layouts offers significant advantages to reduce emissions and fuel consumption to meet future emission requirements

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“…Ladommatos et al [18][19][20][21] performed a thorough study about the effect of EGR on diesel combustion, including ignition delay and exhaust emissions.…”

Section: Justification and Objectivementioning

confidence: 99%

Design of synthetic EGR and simulation study of the effect of simplified formulations on the ignition delay of isooctane and n-heptane

Desantes

López

Molina

et al. 2015

Energy Conversion and Management

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A method to create synthetic mixtures that simulate the Exhaust Gas Recirculation (EGR) of an internal combustion engine, using O 2 , N 2 , CO 2 , H 2 O and Ar, has been designed. Different simplifications of this synthetic EGR error increases with temperature and decreases with pressure, equivalence ratio and oxygen mass fraction. Finally, the limit oxygen mass fractions for the use of each simplification have been obtained. Based on these results, it can be concluded that the only gas that can be obviated to keep the error in ignition delay under 1% is Ar.

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The Dilution, Chemical, and Thermal Effects of Exhaust Gas Recirculation on Diesel Engine Emissions - Part 1: Effect of Reducing Inlet Charge Oxygen

Cited by 149 publications

References 24 publications

Effects of EGR rate on performance and emissions of a diesel power generator fueled by B7

Effects of EGR rate on performance and emissions of a diesel power generator fueled by B7

On the combination of high-pressure and low-pressure exhaust gas recirculation loops for improved fuel economy and reduced emissions in high-speed direct-injection engines

Design of synthetic EGR and simulation study of the effect of simplified formulations on the ignition delay of isooctane and n-heptane

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