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Simultaneous two cross-sectional measurements of NH3 concentration in bent pipe flow using CT-tunable diode laser absorption spectroscopy
https://tokushima-u.repo.nii.ac.jp/records/2006658
https://tokushima-u.repo.nii.ac.jp/records/200665829dfb0e7-1001-4d86-b5e1-8889c73288a4
| 名前 / ファイル | ライセンス | アクション |
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jtst_14_2_JTST0016.pdf (2.2 MB)
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| Item type | 文献 / Documents(1) | |||||||||||||||||||||||||||||
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| 公開日 | 2019-09-04 | |||||||||||||||||||||||||||||
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| アクセス権 | open access | |||||||||||||||||||||||||||||
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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 | ||||||||||||||||||||||||||||||
| 関連識別子 | https://doi.org/10.1299/jtst.2019jtst0016 | |||||||||||||||||||||||||||||
| 関連名称 | 10.1299/jtst.2019jtst0016 | |||||||||||||||||||||||||||||
| 出版タイプ | ||||||||||||||||||||||||||||||
| 出版タイプ | AM | |||||||||||||||||||||||||||||
| 出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||||||||||||||||||||||||||
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| タイトル | Simultaneous two cross-sectional measurements of NH3 concentration in bent pipe flow using CT-tunable diode laser absorption spectroscopy | |||||||||||||||||||||||||||||
| 著者 |
マツイ, ヒトシ
× マツイ, ヒトシ
× ウダガワ, カズマサ
× 出口, 祥啓
WEKO
412
× カミモト, タカヒロ
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| 内容記述 | Urea Selective Catalytic Reduction (urea SCR) system is widely used for diesel engine to reduce the emission of NOx by NH3 which is provided by a hydrolysis of urea water. Concentration distribution of NH3 in an exhaust pipe is an important factor for improvement of the SCR efficiency and prevention of NH3 slip and urea deposit. Therefore, it is necessary to measure two-dimensional (2D) concentration of NH3 in detail. The purpose of this study is to develop the real-time two cross-sectional measurements technology of NH3 concentration using the computed tomography-tunable diode laser absorption spectroscopy (CT-TDLAS). Theoretical NH3 concentration distribution which was reconstructed by CT agreed to CFD results and quadruple pipe’s results showed good resolution by 14th order reconstruction. Therefore, this method has enough resolution and accuracy for measuring the concentration distribution of NH3. And this method was employed in a bent pipe model demonstrated a urea SCR system. The experimental results of two cross-sectional 2D concentration of NH3 show differences of the concentration distribution of NH3 each cross-section and flow pattern like swirl flow. It was found that CT-TDLAS was an effective method to measure concentration distribution of NH3 and observe characteristics of flow. In addition, observing flow pattern enable to validate CFD results, and it helps to improve efficiency of after treatment system. | |||||||||||||||||||||||||||||
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| 主題 | Measurement and instrumentation | |||||||||||||||||||||||||||||
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| 主題 | CT tunable diode laser absorption spectroscopy | |||||||||||||||||||||||||||||
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| 主題 | NH3 concentration measurement | |||||||||||||||||||||||||||||
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| 主題 | Urea selective catalytic reduction | |||||||||||||||||||||||||||||
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| 主題 | Exhaust aftertreatment | |||||||||||||||||||||||||||||
| 書誌情報 |
en : Journal of Thermal Science and Technology 巻 14, 号 2, p. JTST0016, 発行日 2019 |
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| 収録物識別子タイプ | ISSN | |||||||||||||||||||||||||||||
| 収録物識別子 | 18805566 | |||||||||||||||||||||||||||||
| 出版者 | ||||||||||||||||||||||||||||||
| 出版者 | The Japan Society of Mechanical Engineers and The Heat Transfer Society of Japan | |||||||||||||||||||||||||||||
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| 識別子 | 352974 | |||||||||||||||||||||||||||||
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| 言語 | eng | |||||||||||||||||||||||||||||
