Using exhaust gas recirculation in internal combustion engines: a review

Abd-Alla, G.H.

doi:10.1016/s0196-8904(01)00091-7

Cited by 423 publications

(161 citation statements)

References 6 publications

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“…2), in accordance with Refs. [4,6,21,22,25]. The use of EGR increases the intake charge specific heat capacity and reduces O 2 availability, which has a negative effect on the combustion rate and leads to reduced values of peak cylinder.…”

Section: Resultsmentioning

confidence: 99%

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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: Resultsmentioning

confidence: 99%

“…The use of EGR is limited by increased PM emissions and reduced engine thermal efficiency, which causes a NO X /PM trade-off [9,[14][15][16][22][23][24]. He et al [8] explain that the use of high EGR rates is possible with the delay of diesel injection, reducing engine efficiency losses, but with increasing soot emissions.…”

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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“…In turn, it causes incomplete combustion which increases the amount of unburnt carbon species in the emissions. Therefore, there is a trade-off between NO x and PM especially during high loads (Abd-Alla, 2002;Zheng et al, 2004). In addition, since EGR is often scaled in proportion to engine load, the recirculation is completely disabled during idle conditions.…”

Section: Introductionmentioning

confidence: 99%

Effects of Selective Catalytic Reduction on the Emissions of Persistent Organic Pollutants from a Heavy-Duty Diesel Engine

Cheruiyot

Wang

Lin

et al. 2017

Aerosol Air Qual. Res.

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The emissions of persistent organic pollutants (POPs) from diesel engines is becoming more important due to their proximity to human beings compared to stationary sources whose emission have been well controlled over the years. The selective catalytic reduction (SCR) have been adopted in the heavy-duty diesel engine (HDDE) to reduce the nitrogen oxide (NO x ). SCR has also been reported to reduce the polycyclic aromatic hydrocarbons (PAHs), polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs), and polychlorinated biphenyls (PCBs). However, the memory effect and reformation of persistent organic pollutants (POPs) during SCR operation are not well understood. This study investigated the effect of Copper-zeolite SCR (CuZ SCR) on PCDD/F, PCB, polybrominated dibenzo-p-dioxin and dibenzofuran (PBDD/F), and polybrominated biphenyl (PBB) emissions from a HDDE at 50% and 75% engine load. Notably, PCDD/F and PCB toxicity emissions increased by 78.4% and 201%, respectively. The dominant PCDD/F congeners were OCDD, OCDF, 1,2,3,4,6,7,8-HpCDD, and 1,2,3,4,6,7,8-HpCDF and PCB-105, PCB-118 and PCB-77 for PCBs. More PCDFs were formed compared to PCDDs and lower chlorinated congeners increased more than the higher chlorinated ones. There was also an increase of PBDD/F concentrations from undetectable levels (ND) to 0.247 pg TEQ Nm -3 (4.00 pg TEQ L -1 ) after the SCR. However, only 1,2,3,4,6,7,8-HpBDF and OBDF contributed to the concentrations. PBBs was the only compound measured that reduced after the SCR. The only congener detected before and after the SCR was PBB 15. Consequently, the CuZ SCR could be a source of POPs under mid and high engine loads in this study. Further detail research is required to focus on the formation of POPs on the catalyst surfaces and structures.

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“…Hence, stringent emission norms are continuously being imposed on diesel engines. To meet the future emission norms suitable measures need to be taken [1][2][3]. Bio-fuels have the potential to meet the rapidly growing energy demand in sustainable way.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Measured and Predicted Performance and the Emission Characteristics of Single Cylinder CI Engine using Pongamia Pinnata based Bio-Diesel

Yazharsu¹,

Rajagopal²,

Karthick³

et al. 2017

IJAERS

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Using exhaust gas recirculation in internal combustion engines: a review

Cited by 423 publications

References 6 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

Effects of Selective Catalytic Reduction on the Emissions of Persistent Organic Pollutants from a Heavy-Duty Diesel Engine

Comparison of Measured and Predicted Performance and the Emission Characteristics of Single Cylinder CI Engine using Pongamia Pinnata based Bio-Diesel

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