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Analysis of Methane Hazard Conditions in Mine Headings

A special issue of Sustainability (ISSN 2071-1050). This special issue belongs to the section "Hazards and Sustainability".

Deadline for manuscript submissions: closed (30 September 2020) | Viewed by 3006

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Guest Editor
Faculty of Organization and Management, Silesian University of Technology, Str. Roosevelta 26-28, 41-800 Zabrze, Poland
Interests: energy markets; energy and climate policy; energy security, GHG emissions; renewable energy development; energy efficiency; Industry 4.0
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Special Issue Information

Dear Colleagues,

Hard coal is still one of the basic energy raw materials in the world. Its exploitation is inseparably connected with the occurrence of various types of threats and hazards. One of the most common and dangerous issues occurring in a hard coal mine is methane hazard associated with the possibility of methane-air mixture ignition and/or explosion. Activation of methane hazard in underground excavations has a negative impact on both the working environment of the staff and the natural environment. This is caused by the emission of methane to the atmosphere, and harmful and poisonous gases released during the combustion reaction.

Therefore, to improve the safety of work in the mining industry, protect the environment, and improve the efficiency of mining operations, it is necessary to conduct research to limit possible hazards.

The main purpose of the Special Issue is to present the results of research on methane hazard in underground coal mines. This issue will be a great opportunity to exchange experiences between different research centers and specialists dealing with methane hazard. Published papers will be an excellent source of information on the state of knowledge in the field of methane hazard testing. I believe that the papers will also be an inspiration for further research, the results of which will enable a better understanding of the phenomena and will improve the means to limit any hazards in mining.

The Special Issue is, therefore, a platform to present the state of knowledge on methane hazard in underground coal mines from a scientific and practical point of view. In addition to the scientific works, papers of a utilitarian nature are also welcome.

The scope of papers in the Special Issue will cover the following issues:

  • Methane hazard in mining excavations
  • Influence of goafs on methane hazard
  • Forecasting methane hazard
  • Methane emission during coal mining
  • Research on fires and methane explosions
  • Ventilation systems for mining excavations
  • Methodologies and/or case studies regarding methane hazard testing
  • Methane hazard and the efficiency of the exploitation process
  • Numerical/experimental studies on emissions and methane hazard
  • Methane drainage systems
  • Methane and the threat to the environment
  • Other topics related to methane hazard

Original papers related to the above topics, as well as in general on methodology, numerical, and experimental research, and case studies on methane hazard in mines are welcome.

I hope that the global nature of the scope of this Special Issue will attract researchers and specialists from around the world. I invite all colleagues to publish your original papers in this Special Issue.

Thank you for your contributions.

Dr. Jarosław Brodny
Guest Editor

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Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Sustainability is an international peer-reviewed open access semimonthly journal published by MDPI.

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Keywords

  • Methane hazard
  • Distribution Of Methane Concentration
  • Forecasting
  • Model Test
  • In situ Measurement
  • Combustion of methane
  • Methane explosion
  • CFD simulation
  • Airflow
  • Longwall ventilation
  • Mining exploitation
  • Underground coal mine
  • Methane layering
  • Methane dispersion
  • Methane concentration monitoring systems
  • Methane concentration prediction

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Published Papers (1 paper)

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24 pages, 10146 KiB  
Article
The Influence of the Permeability of the Fractures Zone Around the Heading on the Concentration and Distribution of Methane
by Magdalena Tutak
Sustainability 2020, 12(1), 16; https://doi.org/10.3390/su12010016 - 18 Dec 2019
Cited by 13 | Viewed by 2525
Abstract
One of the main problems related to the excavation of dog headings in coal beds is the emission of methane during this process. To prevent the occurrence of dangerous concentration levels of this gas, it is necessary to use an appropriate ventilation system. [...] Read more.
One of the main problems related to the excavation of dog headings in coal beds is the emission of methane during this process. To prevent the occurrence of dangerous concentration levels of this gas, it is necessary to use an appropriate ventilation system. The operation effectiveness of such a system depends on a number of mining, geological, technical and organizational factors. One of them includes the size and permeability of the fractures zone formed around the excavated dog heading. The primary objective of the paper is to determine the influence of this zone on the ventilation parameters, including the concentration and distribution of methane in the excavated dog heading. In order to achieve the assumed objective, multivariate model-based tests were carried out, which reproduce a real-world dog heading. Literature data and test results in actual conditions were used to determine the size and permeability of the fractures zone around the excavated heading. These data served as the basis to develop a model of the region under analysis and adopt boundary conditions. The analyses were carried out for four permeability values of the fractures zone and for two volumetric flow rates of the air stream supplied to the heading. The results were used to determine the influence of the fractures zone on the distribution and concentration of methane in the heading under analysis. The model-based tests were performed using ANSYS Fluent software. The idea to take into account the fractures zone around the heading represents a new approach to the analysis of ventilation parameters in underground mine headings. The results clearly indicate that this zone affects the ventilation parameters in the heading, including the distribution and concentration of methane. The knowledge obtained from the tests should be used to optimize the ventilation process of dog headings. All authors have read and agreed to the published version of the manuscript. Full article
(This article belongs to the Special Issue Analysis of Methane Hazard Conditions in Mine Headings)
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