Research on Effect of EGR and SCR on NOX Emission from a Heavy Duty Diesel Engine

Ren Hongjuan; Lou Diming

doi:doi:10.11648/j.ajep.20170602.11

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Research on Effect of EGR and SCR on NOX Emission from a Heavy Duty Diesel Engine

Ren Hongjuan, Lou Diming

Received: 4 January 2017 Accepted: 23 January 2017 Published: 18 March 2017

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Abstract

Experimental study was conducted on NOX emissions law of a heavy diesel engine with EGR and SCR. Opening of EGR valve (OEV) was adjusted by INCA, and ammonia nitrogen ratio (ANR) was changed by controlling urea injection quantity with control unit DCU of SCR. Under low, medium and high speed and 50%, 75% and 100% load conditions, the effect of EGR (exhaust gas recirculation) and SCR (selective catalytic reduction) on diesel engine NOX emission was studied by test. The results show that when a heavy diesel engine use EGR and SCR, the conversion magnitude and conversion ratio of NO increased significantly, NO_X emissions rule is similar to that of NO, and when opening of EGR valve is more than 25%, the effects of OEV increasing on NO and NO_X are smaller than the effect of SCR. Only under the conditions of high emissions concentrations of NO₂, EGR and SCR significantly reduce NO₂ emission concentration.

DOI	10.11648/j.ajep.20170602.11
Published in	American Journal of Environmental Protection (Volume 6, Issue 2, April 2017)
Page(s)	26-30
Creative Commons	This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.
Copyright	Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Diesel Engine, Exhaust Gas Recirculation (EGR), (SCR), Nitrogen Oxides (NO_X)

References

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[3]	JIANG Deming. New Generation Euro-Ⅵ-compatible Heavy-duty Diesel Engine [J]. Vehicle Engine, 2009(4): 1-6.
[4]	Claes Westerlund and Björn Westerberg, Scania CV AB. Model Predictive Control of a Combined EGR/SCR HD Diesel Engine [J]. SAE Paper 2010-01-1175, 2010.
[5]	Robert Cloudt, Frank Willems. Integrated Emission Management Strategy for Cost-optimal Engine-after Treatment Operation [J]. SAE Paper 2011-01-1310, 2011.
[6]	Willems Frank, Mentink Paul, Kupper Frank. Integrated Emission Management for Cost Optimal EGR-SCR Balancing in Diesels [C]. 7th IFAC Symposium on Advances in Automotive Control, AAC 2013.
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[8]	RUAN Guanqiang, ZHANG Zhendong. Comparative Experiment Study on Reducing Emissions of Diesel Engine with EGR and SCR [J]. Automobile technology, 2012(10): 55-57.
[9]	CHEN Guisheng, HEN Yinggang, ZHENG Zunqing, et al. Performance and Emission Characteristics of HD Diesel Using EGR Under Low-Speed and High-Load Conditions [J]. Transactions of CSICE, 2014, 32(2): 97-103.
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[13]	GUO Hongsong, JIANG Yan, BAO Junjiang, et al. An Experimental Study on the Performance Matching of Urea-SCR Catalytic Converter with engine [J]. Automotive Engineering, 2011, 33(12): 1039-1042, 1056.
[14]	LI Zhongtai, WANG Tao, DUAN Na, et al. Discussion of Main technical route for Euro VI [J]. Heavy-duty Car, 2014(3): 40-41.

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APA Style

Ren Hongjuan, Lou Diming. (2017). Research on Effect of EGR and SCR on NOX Emission from a Heavy Duty Diesel Engine. American Journal of Environmental Protection, 6(2), 26-30. https://doi.org/10.11648/j.ajep.20170602.11

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ACS Style

Ren Hongjuan; Lou Diming. Research on Effect of EGR and SCR on NOX Emission from a Heavy Duty Diesel Engine. Am. J. Environ. Prot. 2017, 6(2), 26-30. doi: 10.11648/j.ajep.20170602.11

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AMA Style

Ren Hongjuan, Lou Diming. Research on Effect of EGR and SCR on NOX Emission from a Heavy Duty Diesel Engine. Am J Environ Prot. 2017;6(2):26-30. doi: 10.11648/j.ajep.20170602.11

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@article{10.11648/j.ajep.20170602.11,
  author = {Ren Hongjuan and Lou Diming},
  title = {Research on Effect of EGR and SCR on NOX Emission from a Heavy Duty Diesel Engine},
  journal = {American Journal of Environmental Protection},
  volume = {6},
  number = {2},
  pages = {26-30},
  doi = {10.11648/j.ajep.20170602.11},
  url = {https://doi.org/10.11648/j.ajep.20170602.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajep.20170602.11},
  abstract = {Experimental study was conducted on NOX emissions law of a heavy diesel engine with EGR and SCR. Opening of EGR valve (OEV) was adjusted by INCA, and ammonia nitrogen ratio (ANR) was changed by controlling urea injection quantity with control unit DCU of SCR. Under low, medium and high speed and 50%, 75% and 100% load conditions, the effect of EGR (exhaust gas recirculation) and SCR (selective catalytic reduction) on diesel engine NOX emission was studied by test. The results show that when a heavy diesel engine use EGR and SCR, the conversion magnitude and conversion ratio of NO increased significantly, NOX emissions rule is similar to that of NO, and when opening of EGR valve is more than 25%, the effects of OEV increasing on NO and NOX are smaller than the effect of SCR. Only under the conditions of high emissions concentrations of NO2, EGR and SCR significantly reduce NO2 emission concentration.},
 year = {2017}
}

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TY  - JOUR
T1  - Research on Effect of EGR and SCR on NOX Emission from a Heavy Duty Diesel Engine
AU  - Ren Hongjuan
AU  - Lou Diming
Y1  - 2017/03/18
PY  - 2017
N1  - https://doi.org/10.11648/j.ajep.20170602.11
DO  - 10.11648/j.ajep.20170602.11
T2  - American Journal of Environmental Protection
JF  - American Journal of Environmental Protection
JO  - American Journal of Environmental Protection
SP  - 26
EP  - 30
PB  - Science Publishing Group
SN  - 2328-5699
UR  - https://doi.org/10.11648/j.ajep.20170602.11
AB  - Experimental study was conducted on NOX emissions law of a heavy diesel engine with EGR and SCR. Opening of EGR valve (OEV) was adjusted by INCA, and ammonia nitrogen ratio (ANR) was changed by controlling urea injection quantity with control unit DCU of SCR. Under low, medium and high speed and 50%, 75% and 100% load conditions, the effect of EGR (exhaust gas recirculation) and SCR (selective catalytic reduction) on diesel engine NOX emission was studied by test. The results show that when a heavy diesel engine use EGR and SCR, the conversion magnitude and conversion ratio of NO increased significantly, NOX emissions rule is similar to that of NO, and when opening of EGR valve is more than 25%, the effects of OEV increasing on NO and NOX are smaller than the effect of SCR. Only under the conditions of high emissions concentrations of NO2, EGR and SCR significantly reduce NO2 emission concentration.
VL  - 6
IS  - 2
ER  -

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Author Information

Ren Hongjuan

College of Automotive Studies, Tongji University, Shanghai, China; College of Automotive Engineering, Shanghai University of Engineering Science, Shanghai, China
Lou Diming

College of Automotive Studies, Tongji University, Shanghai, China

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Plain Text BibTeX RIS

APA Style

Ren Hongjuan, Lou Diming. (2017). Research on Effect of EGR and SCR on NOX Emission from a Heavy Duty Diesel Engine. American Journal of Environmental Protection, 6(2), 26-30. https://doi.org/10.11648/j.ajep.20170602.11

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ACS Style

Ren Hongjuan; Lou Diming. Research on Effect of EGR and SCR on NOX Emission from a Heavy Duty Diesel Engine. Am. J. Environ. Prot. 2017, 6(2), 26-30. doi: 10.11648/j.ajep.20170602.11

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AMA Style

Ren Hongjuan, Lou Diming. Research on Effect of EGR and SCR on NOX Emission from a Heavy Duty Diesel Engine. Am J Environ Prot. 2017;6(2):26-30. doi: 10.11648/j.ajep.20170602.11

Copy | Download

@article{10.11648/j.ajep.20170602.11,
  author = {Ren Hongjuan and Lou Diming},
  title = {Research on Effect of EGR and SCR on NOX Emission from a Heavy Duty Diesel Engine},
  journal = {American Journal of Environmental Protection},
  volume = {6},
  number = {2},
  pages = {26-30},
  doi = {10.11648/j.ajep.20170602.11},
  url = {https://doi.org/10.11648/j.ajep.20170602.11},
  eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajep.20170602.11},
  abstract = {Experimental study was conducted on NOX emissions law of a heavy diesel engine with EGR and SCR. Opening of EGR valve (OEV) was adjusted by INCA, and ammonia nitrogen ratio (ANR) was changed by controlling urea injection quantity with control unit DCU of SCR. Under low, medium and high speed and 50%, 75% and 100% load conditions, the effect of EGR (exhaust gas recirculation) and SCR (selective catalytic reduction) on diesel engine NOX emission was studied by test. The results show that when a heavy diesel engine use EGR and SCR, the conversion magnitude and conversion ratio of NO increased significantly, NOX emissions rule is similar to that of NO, and when opening of EGR valve is more than 25%, the effects of OEV increasing on NO and NOX are smaller than the effect of SCR. Only under the conditions of high emissions concentrations of NO2, EGR and SCR significantly reduce NO2 emission concentration.},
 year = {2017}
}

Copy | Download

TY  - JOUR
T1  - Research on Effect of EGR and SCR on NOX Emission from a Heavy Duty Diesel Engine
AU  - Ren Hongjuan
AU  - Lou Diming
Y1  - 2017/03/18
PY  - 2017
N1  - https://doi.org/10.11648/j.ajep.20170602.11
DO  - 10.11648/j.ajep.20170602.11
T2  - American Journal of Environmental Protection
JF  - American Journal of Environmental Protection
JO  - American Journal of Environmental Protection
SP  - 26
EP  - 30
PB  - Science Publishing Group
SN  - 2328-5699
UR  - https://doi.org/10.11648/j.ajep.20170602.11
AB  - Experimental study was conducted on NOX emissions law of a heavy diesel engine with EGR and SCR. Opening of EGR valve (OEV) was adjusted by INCA, and ammonia nitrogen ratio (ANR) was changed by controlling urea injection quantity with control unit DCU of SCR. Under low, medium and high speed and 50%, 75% and 100% load conditions, the effect of EGR (exhaust gas recirculation) and SCR (selective catalytic reduction) on diesel engine NOX emission was studied by test. The results show that when a heavy diesel engine use EGR and SCR, the conversion magnitude and conversion ratio of NO increased significantly, NOX emissions rule is similar to that of NO, and when opening of EGR valve is more than 25%, the effects of OEV increasing on NO and NOX are smaller than the effect of SCR. Only under the conditions of high emissions concentrations of NO2, EGR and SCR significantly reduce NO2 emission concentration.
VL  - 6
IS  - 2
ER  -

Copy | Download