In Situ Measurement of NO, NO2, and H2O in Combustion Gases Based on Near/Mid-Infrared Laser Absorption Spectroscopy

doi:10.3390/s22155729

	In Situ Measurement of NO, NO2, and H2O in Combustion Gases Based on Near/Mid-Infrared Laser Absorption Spectroscopy
	Li, Jing 1; Li RJ(李仁杰); Liu, Yan1 ; Li F(李飞); Lin X(林鑫); Yu XL(余西龙); Shao, Weiwei 1; Xu, Xiang 1
发表期刊	SENSORS
	2022-08
卷号	22 期号:15 页码:5729
摘要	In this study, a strategy was developed for in situ, non-intrusive, and quantitative measurement of the oxides of nitrogen (NO and NO2) to describe emission characteristics in gas turbines. The linear calibration-free wavelength modulation spectroscopy (LCF-WMS) approach combined with the temperature profile-fitting strategy was utilized for trace NO and NO2 concentration detection with broad spectral interference from gaseous water (H2O). Transition lines near 1308 nm, 5238 nm, and 6250 nm were selected to investigate the H2O, NO, and NO2 generated from combustion. Experiments were performed under different equivalence ratios in a combustion exhaust tube, which was heated at 450-700 K, with an effective optical length of 1.57 m. Ultra-low NOx emissions were captured by optical measurements under different equivalence ratios. The mole fractions of H2O were in agreement with the theoretical values calculated using Chemkin. Herein, the uncertainty of the TDLAS measurements and the limitation of improving the relative precision are discussed in detail. The proposed strategy proved to be a promising combustion diagnostic technique for the quantitative measurement of low-absorbance trace NO and NO2 with strong H2O interference in real combustion gases.
关键词	NOx emission multispecies sensor in situ measurements wavelength modulation spectroscopy
学科领域	Chemistry, Analytical ; Engineering, Electrical & Electronic ; Instruments & Instrumentation
DOI	10.3390/s22155729
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000839817100001
项目资助者	Youth In11ation Promotion Association CAS [Y2021054]
论文分区	二类
力学所作者排名	3+
RpAuthor	Liu, Y (corresponding author), Chinese Acad Sci, Inst Engn Thermophys, Key Lab Adv Energy & Power, Beijing 100190, Peoples R China. ; Liu, Y (corresponding author), Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China.
引用统计	被引频次：1[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/90221
专题	高温气体动力学国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Engn Thermophys, Key Lab Adv Energy & Power, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Li, Jing,Li RJ,Liu, Yan,et al. In Situ Measurement of NO, NO2, and H2O in Combustion Gases Based on Near/Mid-Infrared Laser Absorption Spectroscopy[J]. SENSORS,2022,22,15,:5729.
APA	Li, Jing.,李仁杰.,Liu, Yan.,李飞.,林鑫.,...&Xu, Xiang.(2022).In Situ Measurement of NO, NO2, and H2O in Combustion Gases Based on Near/Mid-Infrared Laser Absorption Spectroscopy.SENSORS,22(15),5729.
MLA	Li, Jing,et al."In Situ Measurement of NO, NO2, and H2O in Combustion Gases Based on Near/Mid-Infrared Laser Absorption Spectroscopy".SENSORS 22.15(2022):5729.

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