<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>The mining process of the coal seam wall is accompanied by the release of methane into the mine atmosphere. This process is highly variable and depends on the methane content in the seam and the methane saturation of the rocks surrounding the seam. This is the specificity of the Polish hard coal mining industry. In the article, prognostic formulas for the maximum methane concentration at the outlet of the longwall ventilation gallery were developed. In the presented article, these formulas were used to predict methane concentration at the longwall outlet and in the ventilation gallery at a distance of up to 10 m in front of the longwall. In order to assess the accuracy of the forecasts, their results were compared with the forecast at the exit of the ventilation roadway. The obtained results are so accurate that it is worth repeating this type of check also using measurements in other longwalls. It will allow to reduce the risk of methane explosion during operation.</p>
</abstract>

The mining process of the coal seam wall is accompanied by the release of methane into the mine atmosphere. This process is highly variable and depends on the methane content in the seam and the methane saturation of the rocks surrounding the seam. This is the specificity of the Polish hard coal mining industry. In the article, prognostic formulas for the maximum methane concentration at the outlet of the longwall ventilation gallery were developed. In the presented article, these formulas were used to predict methane concentration at the longwall outlet and in the ventilation gallery at a distance of up to 10 m in front of the longwall. In order to assess the accuracy of the forecasts, their results were compared with the forecast at the exit of the ventilation roadway. The obtained results are so accurate that it is worth repeating this type of check also using measurements in other longwalls. It will allow to reduce the risk of methane explosion during operation.

Forecast of the Maximum Methane Concentration in the Longwall Outlet and in the Ventilation Roadway. Case Study

Management Systems in Production Engineering

This work is licensed under the Creative Commons Attribution 4.0 International License.

The mining process of the coal seam wall is accompanied by the release of methane into the mine atmosphere. This process is highly variable and depends on the...

Forecast of the Maximum Methane Concentration in the Longwall Outlet and in the Ventilation Roadway. Case Study

Published Online: Dec 06, 2023

Page range: 398 - 403

Received: May 01, 2023

Accepted: Oct 01, 2023

DOI: https://doi.org/10.2478/mspe-2023-0044

Keywords
methane content, max methane concentration, methane content forecasts, methane content changes, analysis of measurement data and forecasts

© 2023 Dorota Palka et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Forecast of the Maximum Methane Concentration in the Longwall Outlet and in the Ventilation Roadway. Case Study

Published Online: Dec 06, 2023

Page range: 398 - 403

Received: May 01, 2023

Accepted: Oct 01, 2023

DOI: https://doi.org/10.2478/mspe-2023-0044

Keywordsmethane content, max methane concentration, methane content forecasts, methane content changes, analysis of measurement data and forecasts

© 2023 Dorota Palka et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Keywords
methane content, max methane concentration, methane content forecasts, methane content changes, analysis of measurement data and forecasts