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Quantitative measurement of the mixture ratio for ADN-based liquid propellants using laser-induced breakdown spectroscopy
Wang FY(王方仪)1,2; Zhang SH(张少华)1; Yu XL(余西龙)1,2; Lin X(林鑫)1; Li, Jing3,4; Liu, Yan3,4
Corresponding AuthorZhang, Shaohua(
AbstractLaser-induced breakdown spectroscopy (LIBS) experiments were carried out with an ammonium dinitramide (ADN)-based propellant to measure its distribution, that is the mixture ratio, in an inert atmosphere. A heating sampler was developed to produce a premixed sample with a known mixture ratio and this was connected to a chamber that had been designed to simulate the space propulsion environment. Determining the time window for the acquisition and saturation threshold of LIBS were the main motivations to investigate the effective lifetimes of atomic spectral lines and the effect of laser energy on the emission ratio. From the spectroscopic analysis, it was found that the ratio of the intensities of H (656.3 nm), O (777 nm) and N (746.8 nm) over Ar (738.4 nm) increased monotonically with the mixture ratio in the range of 0-0.06. A series of propellant/Ar mixtures with a pressure in the region of 40-100 kPa were used to obtain a linear correlation between the intensity ratio of LIBS spectra and the local mixture ratio. It was observed that the logarithm of the slope of the lines also showed a linear correlation with the pressure. Considering that the current method was applied by necessity with the given pressure, the local pressure was studied based on its dependence on the full width at half maximum (FWHM) of H and Ar spectral lines. Consequently, the emission ratios of H/Ar, O/Ar and N/Ar were utilized as a diagnostic tool to obtain the distribution of the propellant in the inert atmosphere. The LIBS-based results not only provide fundamental data for the on-line measurements of ADN-based thrusters, but also hold promise for promoting the application of LIBS in the field of energetic ionic liquids.
Indexed BySCI ; EI
WOS IDWOS:000686726400001
WOS Research AreaChemistry ; Spectroscopy
WOS SubjectChemistry, Analytical ; Spectroscopy
Funding ProjectNational Science Foundation of China[11672359] ; National Science Foundation of China[11872368] ; National Science Foundation of China[11927803] ; Natural Science Foundation of Beijing Municipality[BM2019001]
Funding OrganizationNational Science Foundation of China ; Natural Science Foundation of Beijing Municipality
ContributorZhang, Shaohua
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Document Type期刊论文
Affiliation1.Chinese Acad Sci, Inst Mech, State Key Lab High Temp Gas Dynam, Beijing 100190, Peoples R China;
2.Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China;
3.Chinese Acad Sci, Inst Engn Thermophys, Key Lab Adv Energy & Power, Beijing 100190, Peoples R China;
4.Chinese Acad Sci, Res Ctr Clean Energy & Power, Lianyungang 22046, Jiangsu, Peoples R China
Recommended Citation
GB/T 7714
Wang FY,Zhang SH,Yu XL,et al. Quantitative measurement of the mixture ratio for ADN-based liquid propellants using laser-induced breakdown spectroscopy[J]. JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY,2021:11.
APA 王方仪,张少华,余西龙,林鑫,Li, Jing,&Liu, Yan.(2021).Quantitative measurement of the mixture ratio for ADN-based liquid propellants using laser-induced breakdown spectroscopy.JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY,11.
MLA 王方仪,et al."Quantitative measurement of the mixture ratio for ADN-based liquid propellants using laser-induced breakdown spectroscopy".JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY (2021):11.
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