This is an early access version, the complete PDF, HTML, and XML versions will be available soon.
Open AccessArticle
The Impact of Hydrogen on Flame Characteristics and Pollutant Emissions in Natural Gas Industrial Combustion Systems
by
Yamei Lan
Yamei Lan 1,2,*,
Zheng Wang
Zheng Wang 1,
Jingxiang Xu
Jingxiang Xu 1,2 and
Wulang Yi
Wulang Yi 3
1
School of Engineering, Shanghai Ocean University, Shanghai 201306, China
2
Shanghai Marine Renewable Energy Engineering Technology Research Center, Shanghai 201306, China
3
Pulin Zhike (Shanghai) Technology Co., Ltd., Shanghai 201306, China
*
Author to whom correspondence should be addressed.
Energies 2024, 17(19), 4959; https://doi.org/10.3390/en17194959 (registering DOI)
Submission received: 9 September 2024
/
Revised: 27 September 2024
/
Accepted: 1 October 2024
/
Published: 3 October 2024
Abstract
To improve energy savings and emission reduction in industrial heating furnaces, this study investigated the impact of various molar fractions of hydrogen on natural gas combustion and compared the results of the Non-Premixed Combustion Model with the Eddy Dissipation Combustion Model. Initially, natural gas combustion in an industrial heating furnace was investigated experimentally, and these results were used as boundary conditions for CFD simulations. The diffusion flame and combustion characteristics of natural gas were simulated using both the non-premixed combustion model and the Eddy Dissipation Combustion Model. The results indicated that the Non-Premixed Combustion Model provided simulations more consistent with experimental data, within acceptable error margins, thus validating the accuracy of the numerical simulations. Additionally, to analyze the impact of hydrogen doping on the performance of an industrial gas heater, four gas mixtures with varying hydrogen contents (15% H2, 30% H2, 45% H2, and 60% H2) were studied while maintaining constant fuel inlet temperature and flow rate. The results demonstrate that the Non-Premixed Combustion Model more accurately simulates complex flue gas flow and chemical reactions during combustion. Moreover, hydrogen-doped natural gas significantly reduces CO and CO2 emissions compared to pure natural gas combustion. Specifically, at 60% hydrogen content, CO and CO2 levels decrease by 70% and 37.5%, respectively, while NO emissions increase proportionally; at this hydrogen content, NO concentration in the furnace chamber rises by 155%.
Share and Cite
MDPI and ACS Style
Lan, Y.; Wang, Z.; Xu, J.; Yi, W.
The Impact of Hydrogen on Flame Characteristics and Pollutant Emissions in Natural Gas Industrial Combustion Systems. Energies 2024, 17, 4959.
https://doi.org/10.3390/en17194959
AMA Style
Lan Y, Wang Z, Xu J, Yi W.
The Impact of Hydrogen on Flame Characteristics and Pollutant Emissions in Natural Gas Industrial Combustion Systems. Energies. 2024; 17(19):4959.
https://doi.org/10.3390/en17194959
Chicago/Turabian Style
Lan, Yamei, Zheng Wang, Jingxiang Xu, and Wulang Yi.
2024. "The Impact of Hydrogen on Flame Characteristics and Pollutant Emissions in Natural Gas Industrial Combustion Systems" Energies 17, no. 19: 4959.
https://doi.org/10.3390/en17194959
Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details
here.
Article Metrics
Article metric data becomes available approximately 24 hours after publication online.