| On the Quantification of Boundary Layer Effects on Flame Temperature Measurements Using Line-of-sight Absorption Spectroscopy | |
Ma, Liuhao1; Cheong, Kin-Pang2; Yang, Min1; Yuan CK(苑朝凯)3 ; Ren, Wei1
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| Corresponding Author | Ren, Wei([email protected]) |
| Source Publication | COMBUSTION SCIENCE AND TECHNOLOGY
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| 2021-05-21 | |
| Pages | 18 |
| ISSN | 0010-2202 |
| Abstract | 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. |
| Keyword | Flame temperature Boundary layer effects Laser absorption spectroscopy Line-of-sight |
| DOI | 10.1080/00102202.2021.1925657 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000652144100001 |
| WOS Keyword | SOOT VOLUME FRACTION ; H2O CONCENTRATION ; GAS TEMPERATURE ; LASER ; SENSOR ; TDLAS ; CO ; TOMOGRAPHY |
| WOS Research Area | Thermodynamics ; Energy & Fuels ; Engineering |
| WOS Subject | Thermodynamics ; Energy & Fuels ; Engineering, Multidisciplinary ; Engineering, Chemical |
| Funding Project | 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 |
| Funding Organization | 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 |
| Classification | Q3 |
| Ranking | 3+ |
| Contributor | Ren, Wei |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/86823 |
| Collection | 高温气体动力学国家重点实验室 |
| Affiliation | 1.Chinese Univ Hong Kong, Shenzhen Res Inst, Dept Mech & Automat Engn, Hong Kong, Peoples R China; 2.Sichuan Univ, Sch Aeronaut & Astronaut, Chengdu, Sichuan, Peoples R China; 3.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing, Peoples R China |
| Recommended Citation 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.Rp_Au:Ren, Wei |
| 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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| Jp2021F226.pdf（9950KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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