Tehnički vjesnik, Vol. 25 No. 1, 2018.
Pregledni rad
https://doi.org/10.17559/TV-20160322194812
Analysis of Methane Hazard Conditions in Mine Headings
Jarosław Brodny
; Silesian University of Technology, Faculty of Organization and Management, Str. Roosevelta 26-28, 41-800 Zabrze, Poland
Magdalena Tutak
orcid.org/0000-0003-4781-8697
; Silesian University of Technology, Faculty of Mining and Geology, Str. Akademicka 2, 44-100 Gliwice, Poland
Sažetak
One of the most dangerous and the most common hazards in coal mines is methane hazard. This threat is associated with inflammation and/or explosion of methane in the mixture of air. Analysis of the scale of methane hazard allows the selection of such a longwall ventilation system operating, which provides the requisite provisions of the chemical composition of the mine atmosphere, and the required efficiency of methane drainage. The article presents the results of numerical analysis of the flow of the mixture stream of air and methane by the layout of workings of one of the mines. The aim of this study was to analyse the workings and the designation of zones of the ventilation system in question, where there may be dangerous, explosive concentrations of methane. The results are important when taking preventive actions aimed at reducing methane emissions to the external environment in the process of methane drainage.
Ključne riječi
ANSYS Fluent; coal mine; methane hazard; numerical research
Hrčak ID:
193625
URI
Datum izdavanja:
10.2.2018.
Posjeta: 2.396 *