Monitoring the gasification area and its behavior in underground coal gasification by acoustic emission technique instead of temperature measurement
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- 濵中, 晃弘
- 九州大学大学院工学研究院地球資源システム工学部門
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- 石井, 悠真
- 九州大学大学院工学府地球資源システム工学専攻
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- 板倉, 賢一
- 室蘭工業大学未利用資源エネルギー工学講座
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- 笹岡, 孝司
- 九州大学大学院工学研究院地球資源システム工学部門
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- 島田, 英樹
- 九州大学大学院工学研究院地球資源システム工学部門
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- Widodo, Nuhindro Priagung
- Department of Mining Engineering, Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung
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- Sulistianto, Budi
- Department of Mining Engineering, Faculty of Mining and Petroleum Engineering, Institut Teknologi Bandung
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- 児玉, 淳一
- 北海道大学大学院工学研究院環境循環システム部門
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- Deguchi, Gota
- 地下資源イノベーションネットワーク
説明
Underground Coal Gasification (UCG) requires monitoring of the gasification area because the gasification process is invisible and the reaction temperature exceeds 1000 °C. Many fracturing events that occurred due to coal heating can be captured with Acoustic Emission (AE) monitoring technique during UCG. However, the temperature conditions to generate fracturing events during UCG have not yet been clarified. Therefore, the coal heating experiment and small-scale UCG experiment are conducted by measuring the temperature and AE activities in this research to examine the applicability of the AE technique instead of temperature measurement as a monitoring method during UCG. As a result, many fracturing events are generated when the temperature of coal is changed drastically, especially during coal gasification. Besides, AE events increase in the sensor near the heat source and AE sources are expanded widely with the expansion of the high-temperature region. AE monitoring is an effective technique for the estimation of the gasification area during UCG instead of temperature monitoring.
収録刊行物
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- Scientific Reports
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Scientific Reports 13 9757-, 2023-06-16
Springer Nature
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キーワード
詳細情報 詳細情報について
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- CRID
- 1050017057726311168
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- ISSN
- 20452322
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- HANDLE
- 2324/6792845
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- PubMed
- 37328489
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- 本文言語コード
- en
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- 資料種別
- journal article
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- データソース種別
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- IRDB
- OpenAIRE