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On the Quantification of Boundary Layer Effects on Flame Temperature Measurements Using Line-of-sight Absorption Spectroscopy

文献类型：期刊论文

作者Ma, Liuhao3; Cheong, Kin-Pang2; Yang, Min3; Yuan CK(苑朝凯)1; Ren, Wei3
刊名COMBUSTION SCIENCE AND TECHNOLOGY
出版日期2021-05-21
页码18
关键词Flame temperature Boundary layer effects Laser absorption spectroscopy Line-of-sight
ISSN号0010-2202
DOI10.1080/00102202.2021.1925657
通讯作者Ren, Wei(renwei@mae.cuhk.edu.hk)
英文摘要We studied the boundary layer effects on flame temperature measurements using line-of-sight (LOS) absorption spectroscopy. The primary objective is to quantify the measurement uncertainty of the LOS-determined temperature, which is influenced by the thermal and species boundary layers existing in standard laminar premixed flames. The boundary layer thickness (delta), central flame temperature (T-c) and species concentration (X-c) are the major factors investigated in this work. Typical absorption lines of H2O in the wavelength range of 1.4-2.9 mu m were examined under different boundary layer conditions (delta/L = 0-50%, L is the optical path length above the flame; T-c = 1400-2200 K; and X-c = 14-20%). As a result, the thermal boundary layer is observed to contribute mainly to the temperature deviation of the LOS measurement, which increases with delta and T-c. In comparison, the variation of X-c between 14% and 20% has a negligible effect on the temperature measurement in the presence of both thermal and species boundary layers. A systematical investigation of all the selected line pairs reveals that a properly selected line pair reduces the temperature deviation by a maximum of 16.8% under typical laminar flame conditions. The particular line pair centered at 4029.52 cm(-1) and 4030.73 cm(-1), which could be detected by a single tunable semiconductor laser, is recommended for the LOS temperature measurement over a temperature range of 1400-2200 K. Finally, we performed a case study of five representative temperature measurements in laminar flames and successfully corrected the LOS-determined temperature by taking into account the boundary layer effects.
分类号Q3
WOS关键词SOOT VOLUME FRACTION ; H2O CONCENTRATION ; GAS TEMPERATURE ; LASER ; SENSOR ; TDLAS ; CO ; TOMOGRAPHY
资助项目National Natural Science Foundation of China (NSFC)[51776179] ; Natural Science Foundation of Guangdong Province[2019A1515011372] ; Science Foundation of Sichuan Province[2020JDRC0034] ; State Key Laboratory of Hightemperature Gas Dynamics
WOS研究方向Thermodynamics ; Energy & Fuels ; Engineering
语种英语
WOS记录号WOS:000652144100001
资助机构National Natural Science Foundation of China (NSFC) ; Natural Science Foundation of Guangdong Province ; Science Foundation of Sichuan Province ; State Key Laboratory of Hightemperature Gas Dynamics
其他责任者Ren, Wei
源URL[http://dspace.imech.ac.cn/handle/311007/86822]  
专题力学研究所_高温气体动力学国家重点实验室
作者单位1.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing, Peoples R China
2.Sichuan Univ, Sch Aeronaut & Astronaut, Chengdu, Sichuan, Peoples R China;
3.Chinese Univ Hong Kong, Shenzhen Res Inst, Dept Mech & Automat Engn, Hong Kong, Peoples R China;
推荐引用方式
GB/T 7714		 Ma, Liuhao,Cheong, Kin-Pang,Yang, Min,et al. On the Quantification of Boundary Layer Effects on Flame Temperature Measurements Using Line-of-sight Absorption Spectroscopy[J]. COMBUSTION SCIENCE AND TECHNOLOGY,2021:18.
APA Ma, Liuhao,Cheong, Kin-Pang,Yang, Min,苑朝凯,&Ren, Wei.(2021).On the Quantification of Boundary Layer Effects on Flame Temperature Measurements Using Line-of-sight Absorption Spectroscopy.COMBUSTION SCIENCE AND TECHNOLOGY,18.
MLA Ma, Liuhao,et al."On the Quantification of Boundary Layer Effects on Flame Temperature Measurements Using Line-of-sight Absorption Spectroscopy".COMBUSTION SCIENCE AND TECHNOLOGY (2021):18.

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来源：力学研究所

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