Methane Emission during Gas and Rock Outburst on the Basis of the Unipore Model
The goal of this paper is to analyze the phenomenon of gas emission during a methane and coal outburst based on the unipore Crank diffusion model for spherical grains and plane sheets. Two occurrences in the Upper Silesian Coal Basin were analyzed: an outburst in a Zofiówka coal mine in 200...
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2019-05-01
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| Online Access: | https://www.mdpi.com/1996-1073/12/10/1999 |
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| author | Skoczylas Norbert Anna Pajdak Katarzyna Kozieł Leticia Teixeira Palla Braga |
| author_facet | Skoczylas Norbert Anna Pajdak Katarzyna Kozieł Leticia Teixeira Palla Braga |
| author_sort | Skoczylas Norbert |
| collection | DOAJ |
| description | The goal of this paper is to analyze the phenomenon of gas emission during a methane and coal outburst based on the unipore Crank diffusion model for spherical grains and plane sheets. Two occurrences in the Upper Silesian Coal Basin were analyzed: an outburst in a Zofiówka coal mine in 2005 and an outburst in a Budryk coal mine in 2012. Those two outbursts differed considerably. The first one was connected with an unidentified tectonic disturbance in the form of a triple, interlocking fault, and the other one is an example of an outburst in an area free from tectonic disturbances. The model analysis required laboratory tests in order to determine the sorption properties of coals from post-outburst masses. Sorption isotherms and the values of the effective diffusion coefficient were specified. The post-outburst masses were subjected to sieve analysis and the grain composition curves were plotted. The researchers also used the measurement data provided by proper mine services, such as the methane content, the volume of post-outburst masses, and the time courses of CH<sub>4</sub> concentration changes in excavations. They were recorded by methane measurement systems in the mines. |
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| format | Article |
| id | doaj.art-d3248ace9eef46babe9e515bbaf71610 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-11T13:02:04Z |
| publishDate | 2019-05-01 |
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| series | Energies |
| spelling | doaj.art-d3248ace9eef46babe9e515bbaf716102022-12-22T04:22:55ZengMDPI AGEnergies1996-10732019-05-011210199910.3390/en12101999en12101999Methane Emission during Gas and Rock Outburst on the Basis of the Unipore ModelSkoczylas Norbert0Anna Pajdak1Katarzyna Kozieł2Leticia Teixeira Palla Braga3The Strata Mechanics Research Institute of the Polish Academy of Sciences, Reymonta 27, 30-059 Kraków, PolandThe Strata Mechanics Research Institute of the Polish Academy of Sciences, Reymonta 27, 30-059 Kraków, PolandThe Strata Mechanics Research Institute of the Polish Academy of Sciences, Reymonta 27, 30-059 Kraków, PolandThe Strata Mechanics Research Institute of the Polish Academy of Sciences, Reymonta 27, 30-059 Kraków, PolandThe goal of this paper is to analyze the phenomenon of gas emission during a methane and coal outburst based on the unipore Crank diffusion model for spherical grains and plane sheets. Two occurrences in the Upper Silesian Coal Basin were analyzed: an outburst in a Zofiówka coal mine in 2005 and an outburst in a Budryk coal mine in 2012. Those two outbursts differed considerably. The first one was connected with an unidentified tectonic disturbance in the form of a triple, interlocking fault, and the other one is an example of an outburst in an area free from tectonic disturbances. The model analysis required laboratory tests in order to determine the sorption properties of coals from post-outburst masses. Sorption isotherms and the values of the effective diffusion coefficient were specified. The post-outburst masses were subjected to sieve analysis and the grain composition curves were plotted. The researchers also used the measurement data provided by proper mine services, such as the methane content, the volume of post-outburst masses, and the time courses of CH<sub>4</sub> concentration changes in excavations. They were recorded by methane measurement systems in the mines.https://www.mdpi.com/1996-1073/12/10/1999methane emissionoutburstunipore modelhard coal |
| spellingShingle | Skoczylas Norbert Anna Pajdak Katarzyna Kozieł Leticia Teixeira Palla Braga Methane Emission during Gas and Rock Outburst on the Basis of the Unipore Model Energies methane emission outburst unipore model hard coal |
| title | Methane Emission during Gas and Rock Outburst on the Basis of the Unipore Model |
| title_full | Methane Emission during Gas and Rock Outburst on the Basis of the Unipore Model |
| title_fullStr | Methane Emission during Gas and Rock Outburst on the Basis of the Unipore Model |
| title_full_unstemmed | Methane Emission during Gas and Rock Outburst on the Basis of the Unipore Model |
| title_short | Methane Emission during Gas and Rock Outburst on the Basis of the Unipore Model |
| title_sort | methane emission during gas and rock outburst on the basis of the unipore model |
| topic | methane emission outburst unipore model hard coal |
| url | https://www.mdpi.com/1996-1073/12/10/1999 |
| work_keys_str_mv | AT skoczylasnorbert methaneemissionduringgasandrockoutburstonthebasisoftheuniporemodel AT annapajdak methaneemissionduringgasandrockoutburstonthebasisoftheuniporemodel AT katarzynakozieł methaneemissionduringgasandrockoutburstonthebasisoftheuniporemodel AT leticiateixeirapallabraga methaneemissionduringgasandrockoutburstonthebasisoftheuniporemodel |