Academic Journal
Monitoring the gasification area and its behavior in underground coal gasification by acoustic emission technique instead of temperature measurement
| العنوان: | Monitoring the gasification area and its behavior in underground coal gasification by acoustic emission technique instead of temperature measurement |
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| المؤلفون: | Akihiro Hamanaka, Yuma Ishii, Ken-ichi Itakura, Takashi Sasaoka, Hideki Shimada, Nuhindro Priagung Widodo, Budi Sulistianto, Jun-ichi Kodama, Gota Deguchi |
| المصدر: | Scientific Reports, Vol 13, Iss 1, Pp 1-12 (2023) |
| بيانات النشر: | Nature Portfolio, 2023. |
| سنة النشر: | 2023 |
| المجموعة: | LCC:Medicine LCC:Science |
| مصطلحات موضوعية: | Medicine, Science |
| الوصف: | Abstract 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. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2045-2322 |
| Relation: | https://doaj.org/toc/2045-2322 |
| DOI: | 10.1038/s41598-023-36937-0 |
| URL الوصول: | https://doaj.org/article/281d3526d9124da0acc616cc526cd6dd |
| رقم الانضمام: | edsdoj.281d3526d9124da0acc616cc526cd6dd |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 20452322 |
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| DOI: | 10.1038/s41598-023-36937-0 |