| Item type |
文献 / Documents(1) |
| 公開日 |
2020-04-13 |
| アクセス権 |
|
|
アクセス権 |
open access |
| 資源タイプ |
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|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| 出版社版DOI |
|
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|
関連識別子 |
https://doi.org/10.1016/j.apt.2019.03.017 |
|
|
関連名称 |
10.1016/j.apt.2019.03.017 |
| 出版タイプ |
|
|
出版タイプ |
AM |
|
出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
| タイトル |
|
|
タイトル |
Unburned carbon measurement in fly ash using laser-induced breakdown spectroscopy with short nanosecond pulse width laser |
| 著者 |
Liu, Renwei
出口, 祥啓
Nan, Weigang
Hu, Ruomu
Wang, Zhenzhen
フジタ, ユウキ
タナカ, セイヤ
タイナカ, カズキ
タンノ, ケンジ
ワタナベ, ヒロアキ
Liu, Jiping
Yan, Junjie
|
| 抄録 |
|
|
内容記述 |
The unburned carbon in fly ash is one of the important factors for the boiler combustion condition. Controlling the unburned carbon in fly ash is beneficial for fly ash recycle and to improve the combustion efficiency of the coal. Laser-induced breakdown spectroscopy (LIBS) technology has been applied to measure the fly ash contents due to its merits of non-contact, fast response, high sensitivity, and real-time measurement. In this study, experimental measurements have been adopted for fly ash flows with the surrounding gases of N2 and CO2, while the CO2 concentration varified to evaluate the CO2 effect on the unburned carbon signal from fly ash powder. Two kinds of pulse width lasers, 6ns and 1ns, were separately adopted to compare the influence of laser pulse width. Results showed that compared with 6ns pulse width laser, plasma temperature was lower and had less dependence on delay time when using 1ns pulse width laser, and spectra had more stable background. By using 1ns pulse width laser, the emission signal from surrounding CO2 also decreased because of the less surrounding gas breakdown. The solid powder breakdown signals also became more stable when using 1ns pulse width laser. So it is demonstrated that 1ns pulse width laser has the merits for fly ash flow measurement using LIBS. |
| キーワード |
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|
主題 |
Laser-induced breakdown spectroscopy |
| キーワード |
|
|
主題 |
Fly ash powder flow |
| キーワード |
|
|
主題 |
Short nanosecond pulse width laser |
| キーワード |
|
|
主題 |
Solid powder breakdown |
| キーワード |
|
|
主題 |
Surrounding gas breakdown |
| 書誌情報 |
en : Advanced Powder Technology
巻 30,
号 6,
p. 1210-1218,
発行日 2019-04-04
|
| 収録物ID |
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|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
09218831 |
| 収録物ID |
|
|
収録物識別子タイプ |
NCID |
|
収録物識別子 |
AA1074214X |
| 出版者 |
|
|
出版者 |
The Society of Powder Technology Japan |
| 出版者 |
|
|
出版者 |
Elsevier |
| 権利情報 |
|
|
権利情報 |
© 2019. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/ |
| EID |
|
|
識別子 |
351362 |
| 言語 |
|
|
言語 |
eng |
apt_30_6_1210.pdf (1.11 MB)
