Improvement of combustion flame thermometry based on TDLAS

Bin Yang; Bin Huang; Hui Nan Yang; Pei Jin Liu; Guo Qiang He

doi:10.3969/j.issn.1000-1158.2016.06.10

Improvement of combustion flame thermometry based on TDLAS

Bin Yang, Bin Huang, Hui Nan Yang, Pei Jin Liu, Guo Qiang He

School of Astronautics

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

The system with 7 153.748-7 154.354 cm^-1 line-pair based on tunable diode laser absorption spectroscopy (TDLAS) is designed for temperature measurement of premixed flat flame. Due to the weak absorptions, the signal-to-noise ratios (SNR) are low, and the relative deviation between TDLAS and thermocouple are larger. Therefore, the dual lasers TDLAS system with (7 185.597-(7 444.352+7 444.371)) cm^-1 line-pair, which is combined long path method, is developed for improvement of measurement accuracy. The result shows that the selected range will be broaden by using dual lasers, and the stronger line pair will be selected for improvement of SNR. Furthermore, combined the long path method, the relative deviation between TDLAS and thermocouple can be reduced from 10% to 5%.

Original language	English
Pages (from-to)	596-601
Number of pages	6
Journal	Jiliang Xuebao/Acta Metrologica Sinica
Volume	37
Issue number	6
DOIs	https://doi.org/10.3969/j.issn.1000-1158.2016.06.10
State	Published - 22 Nov 2016

Keywords

Combustion diagnostics
Dual lasers
Flame thermometry
Metrology
TDLAS

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title = "Improvement of combustion flame thermometry based on TDLAS",

abstract = "The system with 7 153.748-7 154.354 cm-1 line-pair based on tunable diode laser absorption spectroscopy (TDLAS) is designed for temperature measurement of premixed flat flame. Due to the weak absorptions, the signal-to-noise ratios (SNR) are low, and the relative deviation between TDLAS and thermocouple are larger. Therefore, the dual lasers TDLAS system with (7 185.597-(7 444.352+7 444.371)) cm-1 line-pair, which is combined long path method, is developed for improvement of measurement accuracy. The result shows that the selected range will be broaden by using dual lasers, and the stronger line pair will be selected for improvement of SNR. Furthermore, combined the long path method, the relative deviation between TDLAS and thermocouple can be reduced from 10% to 5%.",

keywords = "Combustion diagnostics, Dual lasers, Flame thermometry, Metrology, TDLAS",

author = "Bin Yang and Bin Huang and Yang, {Hui Nan} and Liu, {Pei Jin} and He, {Guo Qiang}",

year = "2016",

month = nov,

day = "22",

doi = "10.3969/j.issn.1000-1158.2016.06.10",

language = "英语",

volume = "37",

pages = "596--601",

journal = "Jiliang Xuebao/Acta Metrologica Sinica",

issn = "1000-1158",

publisher = "Chinese Society for Measurement",

number = "6",

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T1 - Improvement of combustion flame thermometry based on TDLAS

AU - Yang, Bin

AU - Huang, Bin

AU - Yang, Hui Nan

AU - Liu, Pei Jin

AU - He, Guo Qiang

PY - 2016/11/22

Y1 - 2016/11/22

N2 - The system with 7 153.748-7 154.354 cm-1 line-pair based on tunable diode laser absorption spectroscopy (TDLAS) is designed for temperature measurement of premixed flat flame. Due to the weak absorptions, the signal-to-noise ratios (SNR) are low, and the relative deviation between TDLAS and thermocouple are larger. Therefore, the dual lasers TDLAS system with (7 185.597-(7 444.352+7 444.371)) cm-1 line-pair, which is combined long path method, is developed for improvement of measurement accuracy. The result shows that the selected range will be broaden by using dual lasers, and the stronger line pair will be selected for improvement of SNR. Furthermore, combined the long path method, the relative deviation between TDLAS and thermocouple can be reduced from 10% to 5%.

AB - The system with 7 153.748-7 154.354 cm-1 line-pair based on tunable diode laser absorption spectroscopy (TDLAS) is designed for temperature measurement of premixed flat flame. Due to the weak absorptions, the signal-to-noise ratios (SNR) are low, and the relative deviation between TDLAS and thermocouple are larger. Therefore, the dual lasers TDLAS system with (7 185.597-(7 444.352+7 444.371)) cm-1 line-pair, which is combined long path method, is developed for improvement of measurement accuracy. The result shows that the selected range will be broaden by using dual lasers, and the stronger line pair will be selected for improvement of SNR. Furthermore, combined the long path method, the relative deviation between TDLAS and thermocouple can be reduced from 10% to 5%.

KW - Combustion diagnostics

KW - Dual lasers

KW - Flame thermometry

KW - Metrology

KW - TDLAS

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JO - Jiliang Xuebao/Acta Metrologica Sinica

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ER -

Improvement of combustion flame thermometry based on TDLAS

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Keywords

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