Development of interference-free rotational and vibrational thermometry for studies on shock-heated thermochemical non-equilibrium CO

doi:10.1088/1361-6501/acf605

	Development of interference-free rotational and vibrational thermometry for studies on shock-heated thermochemical non-equilibrium CO
	He, Dong; Si, Ting; Li F(李飞); Luo XS(罗喜胜)
通讯作者	Si, Ting(tsi@ustc.edu.cn)
发表期刊	MEASUREMENT SCIENCE AND TECHNOLOGY
	2023-12-01
卷号	34 期号:12 页码:14
ISSN	0957-0233
摘要	A mid-infrared interference-free laser absorption technique for simultaneously measuring rotational temperature, vibrational temperature, and CO concentration was developed for application to shock-tube studies on thermochemical non-equilibrium CO over 1000-3000 K. Three transition lines in the fundamental vibrational band of CO (P(0, 21), near 4.87 mu m, P(1, 21), near 4.93 mu m, and P(0, 37), near 5.05 mu m) were selected. The P(0, 21)/P(1, 21) line pair was used for vibrational temperature measurements whereas the P(0, 21)/P(0, 37) line pair was used for rotational temperature measurements. Spectroscopic parameters for developing the technique were measured: line strengths and collisional broadening data in Ar were obtained at 1040-2940 K. Validation experiments for the thermometry system were performed in shock-heated thermal-equilibrium CO/Ar mixtures at 1050-3010 K and 1.1-2.8 bar. The time-dependent rotational and vibrational temperatures were measured during the vibrational relaxation processes of CO. The technique showed high sensitivity in detecting the rotational and vibrational temperatures. The measured rotational temperature agreed well with the temperature calculated using the measured pressure and isentropic relationship. The measured vibrational temperature showed good agreement with the predictions using the Landau and Teller theory and Millikan and White relationship. The time-dependent CO concentration during the oxidation processes of n-heptane over a wide temperature range (1350-2750 K) was measured considering n-heptane as one of the alternative fuels for the scramjet. The interference-free laser absorption strategy showed good flexibility in detecting the CO concentration at ultra-high temperatures. The measured results showed overall good agreement with the predictions from two detailed mechanisms and one skeletal mechanism. The reactivity of n-heptane was found to be insensitive to the temperature increase at ultra-high temperatures (> 2100 K).
关键词	rotational temperature vibrational temperature shock tube TDLAS CO
DOI	10.1088/1361-6501/acf605
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:001065927900001
关键词[WOS]	LASER-ABSORPTION SPECTROSCOPY ; CARBON-MONOXIDE ; TEMPERATURE ; COMBUSTION ; OXIDATION ; ISOTOPOLOGUES ; RELAXATION ; RADIATION ; SYSTEMS ; TUBE
WOS研究方向	Engineering ; Instruments & Instrumentation
WOS类目	Engineering, Multidisciplinary ; Instruments & Instrumentation
资助项目	frontier scientific research program of Deep Space Exploration Laboratory[2022-QYKYJH-HXYF-019] ; National Natural Science Foundation of China[12027801] ; National Natural Science Foundation of China[11621202] ; China Postdoctoral Science Foundation[2021M703084] ; Provincial Natural Science Foundation of Anhui[2208085QE162] ; Fundamental Research Funds for the Central Universities[WK2090000043]
项目资助者	frontier scientific research program of Deep Space Exploration Laboratory ; National Natural Science Foundation of China ; China Postdoctoral Science Foundation ; Provincial Natural Science Foundation of Anhui ; Fundamental Research Funds for the Central Universities
论文分区	Q3
力学所作者排名	3
RpAuthor	Si, Ting
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/311007/93100
专题	高温气体动力学国家重点实验室
推荐引用方式 GB/T 7714	He, Dong,Si, Ting,Li F,et al. Development of interference-free rotational and vibrational thermometry for studies on shock-heated thermochemical non-equilibrium CO[J]. MEASUREMENT SCIENCE AND TECHNOLOGY,2023,34,12,:14.
APA	He, Dong,Si, Ting,李飞,&罗喜胜.(2023).Development of interference-free rotational and vibrational thermometry for studies on shock-heated thermochemical non-equilibrium CO.MEASUREMENT SCIENCE AND TECHNOLOGY,34(12),14.
MLA	He, Dong,et al."Development of interference-free rotational and vibrational thermometry for studies on shock-heated thermochemical non-equilibrium CO".MEASUREMENT SCIENCE AND TECHNOLOGY 34.12(2023):14.

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