抄録
The environmental safety of an underground mine depends strongly on its ventilation system. An efficient ventilation system provides fresh air, removes hazardous gases and dust, and maintains the temperature and humidity at appropriate levels. One of the most important factors in removing hazardous gases and dust is the dispersion behaviour in the mine network. This factor determines the longitudinal spreading and the average air residence time of gases or particulate matter throughout the mine. This paper describes tracer gas measurement in an underground mine and the utilisation and analysis of the dispersion characteristics using numerical simulations. The concentration-time curve obtained from the measurement is simulated to evaluate the effective diffusion coefficient that reflects the general dispersion characteristic of an entire mine. The evaluated values of effective diffusion coefficient are then compared to other data from several studies. The diffusivities obtained in this study were higher than other analytical and empirical results. More research is still required to identify the main factors causing such higher diffusivities. However, the results from the present work can be an important standpoint for future work. Numerical simulation conducted in this research was confirmed to be effective in detecting several leakage paths occurring in the mine ventilation network.
| 元の言語 | 英語 |
|---|---|
| ページ（範囲） | 173-181 |
| ページ数 | 9 |
| ジャーナル | Process Safety and Environmental Protection |
| 巻 | 93 |
| DOI | |
| 出版物ステータス | 出版済み - 1 1 2015 |
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All Science Journal Classification (ASJC) codes
- Safety, Risk, Reliability and Quality
- Modelling and Simulation
- Geochemistry and Petrology
これを引用
Assessment of air dispersion characteristic in underground mine ventilation : Field measurement and numerical evaluation. / Widiatmojo, Arif; Sasaki, Kyuro; Sugai, Yuichi; Suzuki, Yoshiaki; Tanaka, Hiroyuki; Uchida, Kagemi; Matsumoto, Hiroyuki.
：: Process Safety and Environmental Protection, 巻 93, 01.01.2015, p. 173-181.研究成果: ジャーナルへの寄稿 › 記事
}
TY - JOUR
T1 - Assessment of air dispersion characteristic in underground mine ventilation
T2 - Field measurement and numerical evaluation
AU - Widiatmojo, Arif
AU - Sasaki, Kyuro
AU - Sugai, Yuichi
AU - Suzuki, Yoshiaki
AU - Tanaka, Hiroyuki
AU - Uchida, Kagemi
AU - Matsumoto, Hiroyuki
PY - 2015/1/1
Y1 - 2015/1/1
N2 - The environmental safety of an underground mine depends strongly on its ventilation system. An efficient ventilation system provides fresh air, removes hazardous gases and dust, and maintains the temperature and humidity at appropriate levels. One of the most important factors in removing hazardous gases and dust is the dispersion behaviour in the mine network. This factor determines the longitudinal spreading and the average air residence time of gases or particulate matter throughout the mine. This paper describes tracer gas measurement in an underground mine and the utilisation and analysis of the dispersion characteristics using numerical simulations. The concentration-time curve obtained from the measurement is simulated to evaluate the effective diffusion coefficient that reflects the general dispersion characteristic of an entire mine. The evaluated values of effective diffusion coefficient are then compared to other data from several studies. The diffusivities obtained in this study were higher than other analytical and empirical results. More research is still required to identify the main factors causing such higher diffusivities. However, the results from the present work can be an important standpoint for future work. Numerical simulation conducted in this research was confirmed to be effective in detecting several leakage paths occurring in the mine ventilation network.
AB - The environmental safety of an underground mine depends strongly on its ventilation system. An efficient ventilation system provides fresh air, removes hazardous gases and dust, and maintains the temperature and humidity at appropriate levels. One of the most important factors in removing hazardous gases and dust is the dispersion behaviour in the mine network. This factor determines the longitudinal spreading and the average air residence time of gases or particulate matter throughout the mine. This paper describes tracer gas measurement in an underground mine and the utilisation and analysis of the dispersion characteristics using numerical simulations. The concentration-time curve obtained from the measurement is simulated to evaluate the effective diffusion coefficient that reflects the general dispersion characteristic of an entire mine. The evaluated values of effective diffusion coefficient are then compared to other data from several studies. The diffusivities obtained in this study were higher than other analytical and empirical results. More research is still required to identify the main factors causing such higher diffusivities. However, the results from the present work can be an important standpoint for future work. Numerical simulation conducted in this research was confirmed to be effective in detecting several leakage paths occurring in the mine ventilation network.
UR - http://www.scopus.com/inward/record.url?scp=84941877507&partnerID=8YFLogxK
UR - http://www.sciencedirect.com/science/article/pii/S0957582014000470
U2 - 10.1016/j.psep.2014.04.001
DO - 10.1016/j.psep.2014.04.001
M3 - Article
AN - SCOPUS:84941877507
VL - 93
SP - 173
EP - 181
JO - Process Safety and Environmental Protection
JF - Process Safety and Environmental Protection
SN - 0957-5820
ER -