アクセス数 : ?
ダウンロード数 : ?
ID 114330
著者
Wang, Zhenzhen Xi’an Jiaotong University|Tokushima University
Kamimoto, Takahiro Tokushima University
出口, 祥啓 Tokushima University|Xi’an Jiaotong University 徳島大学 教育研究者総覧 KAKEN研究者をさがす
Zhou, Wangzheng Xi’an Jiaotong University
Yan, Junjie Xi’an Jiaotong University|Tokushima University
Tainaka, Kazuki Central Research Institute of Electric Power Industry
Tanno, Kenji Central Research Institute of Electric Power Industry
Watanabe, Hiroaki Kyushu University
Kurose, Ryoichi Kyoto University
キーワード
Pulverized coal combustion
Power plant
Two dimensional temperature measurement
Tunable diode laser absorption spectroscopy (TDLAS)
Computed tomography (CT)
資料タイプ
学術雑誌論文
抄録
Two dimensional temperature and concentration distributions are important parameters for pulverized coal combustion used for power plant to understand the combustion field and develop the high efficient combustion technologies. However, it is difficult to measure two dimensional temperature and concentration in pulverized coal combustion field using conventional measurement technologies because pulverized coal combustion produces lots of dust and strong emission from its frame. This paper focused on the application of two dimensional temperature distribution measurement method based on the combination of computed tomography and tunable diode laser absorption spectroscopy using absorption spectra of water vapor at 1388nm and 1343nm, which show the better characteristics of spatial-temporal resolution, fast response, high sensitivity, self-calibration and optical accessibility compared with thermocouples and other laser diagnostics. Accuracy of temperature measurement using tunable diode laser absorption spectroscopy was improved by applying the corrected spectroscopic database. Computed tomography reconstruction accuracy of 16 laser-paths configuration was evaluated, which presented the consistent temperature between assumed and reconstructed distributions. This computed tomography-tunable diode laser absorption spectroscopy was successfully applied to pulverized coal flame for two dimensional temperature measurement with 1 ms temporal resolution for time-series two dimensional temperature measurement. The pulverized coal flame temperature distribution was compared to Methane-Air flame to demonstrate its feasibility and rationality due to the main heat release produced by methane fuel. It is verified the applicability to various types of combustor, especially the pulverized coal combustion field. It will be benefit for optimal operation control and combustion efficiency improvement by combustion organization or new design of combustion system.
掲載誌名
Applied Thermal Engineering
ISSN
13594311
cat書誌ID
AA11062184
AA11521703
出版者
Elsevier
171
開始ページ
115066
発行日
2020-02-11
備考
論文本文は2022-02-11以降公開予定
権利情報
© 2020. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/
EDB ID
出版社版DOI
出版社版URL
言語
eng
著者版フラグ
その他
部局
理工学系