An Analysis of Exhaust Emission of the Internal Combustion Engine Treated by the Non-Thermal Plasma

Autor: Shi-Hao Wang, Chao-Jung Lai, Jo-Hung Yu, Ming-Hsien Hsueh, Chia-Nan Wang, Tsung-Liang Wu, Chia-Hsin Hsieh, Meng-Chang Hsieh
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Plasma Gases
020209 energy
Air pollution
Pharmaceutical Science
02 engineering and technology
Nonthermal plasma
non-thermal plasma (NTP)
Combustion
medicine.disease_cause
01 natural sciences
Chemical reaction
Article
Analytical Chemistry
Physical Phenomena
lcsh:QD241-441
lcsh:Organic chemistry
Air Pollution
exhaust emission
0103 physical sciences
Drug Discovery
internal combustion engine
ion chemical reaction
0202 electrical engineering
electronic engineering
information engineering
medicine
Physical and Theoretical Chemistry
NOx
Vehicle Emissions
010302 applied physics
Air Pollutants
Waste management
Organic Chemistry
Volumetric flow rate
Internal combustion engine
Chemistry (miscellaneous)
Exhaust emission
Molecular Medicine
Environmental science
Nitrogen Oxides
Particulate Matter
Gases
Gasoline
Zdroj: Molecules
Volume 25
Issue 24
Molecules, Vol 25, Iss 6041, p 6041 (2020)
ISSN: 1420-3049
DOI: 10.3390/molecules25246041
Popis: Industries&rsquo
air pollution causes serious challenges to modern society, among them exhaust gases from internal combustion engines, which are currently one of the main sources. This study proposes a non-thermal plasma (NTP) system for placement in the exhaust system of internal combustion engines to reduce the toxic contaminants (HC, CO, and NOx) of exhaust gases. This NTP system generates a high-voltage discharge that not only responds to the ion chemical reaction to eliminate NOx and CO, but that also generates a combustion reaction at the local high temperature of plasma to reduce HC. The NTP system was designed on both the front and rear of the exhaust pipe to analyze the difference of different exhaust flow rates under the specified frequency. The results indicate that the NTP system can greatly reduce toxic contaminants. The NTP reactor placed in the front of exhaust pipe gave HC and CO removal efficiency of about 34.5% and 16.0%, respectively, while the NTP reactor placed in the rear of exhaust pipe gave NOx removal efficiency of about 41.3%. In addition, the voltage and material directly affect the exhaust gases obviously. In conclusion, the proposed NTP system installed in the exhaust system can significantly reduce air pollutants. These results suggest that applying NTP to the combustion engine should be a useful tool to simultaneously reduce both emissions of NOx and CO.
Databáze: OpenAIRE
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