| Item type |
学術雑誌論文 / Journal Article.(1) |
| 公開日 |
2018-08-17 |
| 書誌情報 |
en : Energies
巻 11,
号 4,
p. 898,
発行日 2018-04-11
|
| タイトル |
|
|
タイトル |
Evaluation of a Compact Coaxial Underground Coal Gasification System Inside an Artificial Coal Seam |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
acoustic emission (AE) |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
underground coal gasification (UCG) |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
coaxial UCG model |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
energy recovery |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| アクセス権 |
|
|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 著者 |
蘇, 発強
濵中, 晃弘
板倉, 賢一
出口, 剛太
ZHANG, Wenyan
NAN, Hua
|
| 室蘭工業大学研究者データベースへのリンク |
|
|
表示名 |
板倉 賢一（ITAKURA Ken-ichi） |
|
URL |
http://rdsoran.muroran-it.ac.jp/html/100000064_ja.html |
| 抄録 |
|
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内容記述タイプ |
Abstract |
|
内容記述 |
The Underground Coal Gasification (UCG) system is a clean technology for obtaining energy from coal. The coaxial UCG system is supposed to be compact and flexible in order to adapt to complicated geological conditions caused by the existence of faults and folds in the ground. In this study, the application of a coaxial UCG system with a horizontal well is discussed, by means of an ex situ model UCG experiment in a large-scale simulated coal seam with dimensions of 550 × 600 × 2740 mm. A horizontal well with a 45-mm diameter and a 2600-mm length was used as an injection/production well. During the experiment, changes in temperature field and product gas compositions were observed when changing the outlet position of the injection pipe. It was found that the UCG reactor is unstable and expands continuously due to fracturing activity caused by coal crack initiation and extension under the influence of thermal stress. Therefore, acoustic emission (AE) is considered an effective tool to monitor fracturing activities and visualize the gasification zone of coal. The results gathered from monitoring of AEs agree with the measured data of temperatures; the source location of AE was detected around the region where temperature increased. The average calorific value of the produced gas was 6.85 MJ/Nm3, and the gasification efficiency, defined as the conversion efficiency of the gasified coal to syngas, was 65.43%, in the whole experimental process. The study results suggest that the recovered coal energy from a coaxial UCG system is comparable to that of a conventional UCG system. Therefore, a coaxial UCG system may be a feasible option to utilize abandoned underground coal resources without mining. |
|
言語 |
en |
| 出版者 |
|
|
出版者 |
MDPI |
|
言語 |
en |
| 出版者版へのリンク |
|
|
表示名 |
10.3390/en11040898 |
|
URL |
https://doi.org/10.3390/en11040898 |
| DOI |
|
|
関連タイプ |
isIdenticalTo |
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|
識別子タイプ |
DOI |
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|
関連識別子 |
10.3390/en11040898 |
| 日本十進分類法 |
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主題Scheme |
NDC |
|
主題 |
575 |
| ISSN |
|
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収録物識別子タイプ |
PISSN |
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収録物識別子 |
1996-1073 |
| 権利 |
|
|
言語 |
en |
|
権利情報 |
© 2018 by the authors; licensee MDPI AG, Basel, Switzerland. This article is an open-access article distributed under the terms and conditions of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/). |
| 著者版フラグ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
| 主となる版 |
|
|
関連タイプ |
isVersionOf |
|
|
識別子タイプ |
URI |
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|
関連識別子 |
http://www.mdpi.com/1996-1073/11/4/898/pdf |
| フォーマット |
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内容記述タイプ |
Other |
|
内容記述 |
application/pdf |
ENERGIES_11_4_898 (51.5 MB)
