Experimental investigation of non-equilibrium plasma-assisted ammonia flames using NH2* chemiluminescence and OH planar laser-induced fluorescence
Experimental investigation of non-equilibrium plasma-assisted ammonia flames using NH2* chemiluminescence and OH planar laser-induced fluorescence
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利用 NH2* 化学发光和 OH 平面激光诱导荧光进行非平衡等离子体辅助氨火焰的实验研究
DOI:
10.1016/j.proci.2022.07.001
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发表时间:
2023
影响因子:
3.4
通讯作者:
Sun, Wenting
中科院分区:
文献类型:
--
作者:
Choe, Jinhoon;Sun, Wenting
This study investigates the effect of nano-second pulsed non-equilibrium plasma on ammonia combustion in a model gas turbine combustor using NH2* chemiluminescence and OH planar laser-induced fluorescence (PLIF). Nano-second pulsed plasma discharge is generated at the exit of the premixed ammonia/air mixture injection tube. Broadband chemiluminescence observation shows that plasma can improve the stabilization of ammonia/air flame and extend the attached flame regime to a lower equivalence ratio. To understand the coupling effect between plasma kinetics and flame dynamics, NH2* chemiluminescence and OH PLIF of ammonia/air flames are measured at different conditions. With the increase of discharge voltage or discharge power, both NH2* chemiluminescence intensity and OH PLIF signal intensity increase, and this observation may explain the improved stabilization of ammonia flames. At very lean condition (equivalence ratio between 0.48 and 0.57, no visible flame existed), both NH2* chemiluminescence and OH PLIF signal are observed in the proximity of electrode region with plasma activation. If air is replaced by pure nitrogen (N2), NH2* chemiluminescence is measurable but extremely weak. As the oxygen (O2) concentration in the oxidizer stream gradually increases, NH2* chemiluminescence intensity increases linearly with O2concentration under plasma activation. This finding indicates that the NH2* production in plasma-assisted ammonia oxidation process is possibly related to the production of OH or oxygen-related species. The direct electron impact on NH2* production might be secondary.
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影响因子:
5.3
作者:
Akira Shioyoke;J. Hayashi;Ryuichi Murai;N. Nakatsuka;F. Akamatsu
通讯作者:
Akira Shioyoke;J. Hayashi;Ryuichi Murai;N. Nakatsuka;F. Akamatsu
DOI:
10.1115/1.4024961
发表时间:
2013-10
影响因子:
1.5
作者:
D. Lacoste;J. Moeck;D. Durox;C. Laux;T. Schuller
通讯作者:
D. Lacoste;J. Moeck;D. Durox;C. Laux;T. Schuller
DOI:
10.1088/1361-6463/aad4dc
发表时间:
2018-08
期刊:
Journal of Physics D: Applied Physics
影响因子:
--
作者:
Jinhoon Choe;Wenting Sun
通讯作者:
Jinhoon Choe;Wenting Sun
DOI:
10.1016/j.proci.2014.08.025
发表时间:
2015-04
期刊:
--
影响因子:
--
作者:
Wookyung Kim;J. Snyder;J. Cohen
通讯作者:
Wookyung Kim;J. Snyder;J. Cohen
影响因子:
1.9
作者:
Wookyung Kim;J. Cohen
通讯作者:
J. Cohen