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.
| Published in | American Journal of Environmental Protection (Volume 6, Issue 2) |
| DOI | 10.11648/j.ajep.20170602.11 |
| 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), 2017. Published by Science Publishing Group |
Diesel Engine, Exhaust Gas Recirculation (EGR), (SCR), Nitrogen Oxides (NOX)
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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
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
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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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}
}
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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