LAPSE:2020.1005
Published Article
LAPSE:2020.1005
Research on Combustion Characteristics of Air−Light Hydrocarbon Mixing Gas
Zhiqun Meng, Jinggang Wang, Chuchao Xiong, Jiawen Qi, Liquan Hou
September 23, 2020
Air−light hydrocarbon mixing gas is a new type of city gas which is composed of light hydrocarbon with the main component of n-pentane and air mixed in a certain proportion. To explore the dominant reactions for CO production of air−light hydrocarbon mixing gas with different mixing degrees at the critical equivalence ratios, a computational study was conducted on the combustion characteristics, including the ignition delay time, laminar flame speed, extinction residence time, and emission of air−light hydrocarbon mixing gas at atmospheric pressure and room temperature in the present study. The calculated results indicate that the ignition delay time of air−light hydrocarbon mixing gas at temperatures of 1000−1118 K is greater than that of n-pentane, while the opposite at temperatures of 1118−1600 K. From the study of the laminar flame speed and ignition delay time, it was found that the essence of air−light hydrocarbon mixing gas is that its attribute parameter is determined by the ratio of n-pentane to the total amount of air at the moment of combustion. The changes in the extinction residence time and the CO emission index of air−light hydrocarbon mixing gas are not synchronized, that is the CO emission index is not necessarily small for air−light hydrocarbon mixing gas with excellent extinction residence time. CO sensitivity analysis and CO rate of production identified key species and reactions that are primarily responsible for CO formation and annihilation. The mixing degree plays a key role in the CO emission index of air−light hydrocarbon mixing gas, which has a constructive opinion on the future experiment and application of air−light hydrocarbon mixing gas.
Keywords
air–light hydrocarbon mixing gas, emission, extinction residence time, ignition delay time, laminar flame speed, n-pentane
Suggested Citation
Meng Z, Wang J, Xiong C, Qi J, Hou L. Research on Combustion Characteristics of Air−Light Hydrocarbon Mixing Gas. (2020). LAPSE:2020.1005
Author Affiliations
Meng Z: School of Energy and Environmental Engineering, Hebei University of Engineering, Handan 056038, China [ORCID]
Wang J: School of Energy and Environmental Engineering, Hebei University of Engineering, Handan 056038, China
Xiong C: School of Energy and Environmental Engineering, Hebei University of Engineering, Handan 056038, China
Qi J: School of Energy and Environmental Engineering, Hebei University of Engineering, Handan 056038, China
Hou L: School of Energy and Environmental Engineering, Hebei University of Engineering, Handan 056038, China
Journal Name
Processes
Volume
8
Issue
6
Article Number
E730
Year
2020
Publication Date
2020-06-24
Published Version
ISSN
2227-9717
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Original Submission
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PII: pr8060730, Publication Type: Journal Article
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LAPSE:2020.1005
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doi:10.3390/pr8060730
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Sep 23, 2020
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CC BY 4.0
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Sep 23, 2020
 
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Calvin Tsay
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