Assessment of air dispersion characteristic in underground mine ventilation: Field measurement and numerical evaluation

Arif Widiatmojo, Kyuro Sasaki, Yuichi Sugai, Yoshiaki Suzuki, Hiroyuki Tanaka, Kagemi Uchida, Hiroyuki Matsumoto

研究成果: ジャーナルへの寄稿記事

23 引用 (Scopus)

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
93
DOI
出版物ステータス出版済み - 1 1 2015

Fingerprint

Mine ventilation
Ventilation
ventilation
Evaluation
air
Diffusivity
Air
Diffusion Coefficient
Gases
Dust
gas
Particulate Matter
Numerical Simulation
diffusivity
Residence Time
Humidity
Gas fuel measurement
Leakage
dust
Computer simulation

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

Widiatmojo, Arif ; Sasaki, Kyuro ; Sugai, Yuichi ; Suzuki, Yoshiaki ; Tanaka, Hiroyuki ; Uchida, Kagemi ; Matsumoto, Hiroyuki. / Assessment of air dispersion characteristic in underground mine ventilation : Field measurement and numerical evaluation. :: Process Safety and Environmental Protection. 2015 ; 巻 93. pp. 173-181.
@article{3e33f8905c4a49119e1f58241350f0b5,
title = "Assessment of air dispersion characteristic in underground mine ventilation: Field measurement and numerical evaluation",
abstract = "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.",
author = "Arif Widiatmojo and Kyuro Sasaki and Yuichi Sugai and Yoshiaki Suzuki and Hiroyuki Tanaka and Kagemi Uchida and Hiroyuki Matsumoto",
year = "2015",
month = "1",
day = "1",
doi = "10.1016/j.psep.2014.04.001",
language = "English",
volume = "93",
pages = "173--181",
journal = "Process Safety and Environmental Protection",
issn = "0957-5820",
publisher = "Institution of Chemical Engineers",

}

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 -