DYNAMICS OF MOTION OF GASES FROM A SOURCE OF SPONTANEOUS COMBUSTION OF COAL IN MINE WORKINGS
The object of this paper is to study the specificity of the dynamics of carbon monoxide in mining to determine the location of the source of coal self-heating or spontaneous combustion. The Fire Dynamics Simulator software package was used to model the gas hazard of coal mine workings. Given the typ...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
University of Zagreb
2021-01-01
|
| Series: | Rudarsko-geološko-naftni Zbornik |
| Subjects: | |
| Online Access: | https://hrcak.srce.hr/file/369381 |
| _version_ | 1827161804596314112 |
|---|---|
| author | Viktor Kostenko Yuriy Gamiy Tetiana Kostenko Sergii Tsvirkun Maksym Udovenko |
| author_facet | Viktor Kostenko Yuriy Gamiy Tetiana Kostenko Sergii Tsvirkun Maksym Udovenko |
| author_sort | Viktor Kostenko |
| collection | DOAJ |
| description | The object of this paper is to study the specificity of the dynamics of carbon monoxide in mining to determine the location of the source of coal self-heating or spontaneous combustion. The Fire Dynamics Simulator software package was used to model the gas hazard of coal mine workings. Given the typical details for the western coal basin of Donbas geo metric dimensions of workings, properties of coal, etc., a model of a fragment of emergency mining of a coal mine was created, which allows for the display of geometric and physical similarity to processes in actual mine workings. The results of the simulation for the studied scenarios with different air supply systems related to the detection and location of sources of self-heating or spontaneous combustion in the coal mine workings were obtained and analysed. It was established that low-density fire gases are concentrated in the vault of the workings, where they slowly dissolve in the air, with the dissolution process being linear. It was revealed that air velocity up to 0.67 to 0.7 m/s contributes to the formation of fire gas flows, which move towards the ventilation flow, almost without mixing, which is referred to as bifurcation. Numerical parameters of fire gas dynamics in near-real conditions were established, which can become a basis for the detection and location of sources of endogenous thermodynamic processes in mine workings. |
| first_indexed | 2024-03-12T07:48:38Z |
| format | Article |
| id | doaj.art-ac84ef729835476dbdefd700e3d840c7 |
| institution | Directory Open Access Journal |
| issn | 1849-0409 |
| language | English |
| last_indexed | 2025-03-21T00:34:44Z |
| publishDate | 2021-01-01 |
| publisher | University of Zagreb |
| record_format | Article |
| series | Rudarsko-geološko-naftni Zbornik |
| spelling | doaj.art-ac84ef729835476dbdefd700e3d840c72024-08-03T06:45:43ZengUniversity of ZagrebRudarsko-geološko-naftni Zbornik1849-04092021-01-0136210911710.17794/rgn.2021.2.1076DYNAMICS OF MOTION OF GASES FROM A SOURCE OF SPONTANEOUS COMBUSTION OF COAL IN MINE WORKINGSViktor Kostenko0Yuriy Gamiy1Tetiana Kostenko2Sergii Tsvirkun3Maksym Udovenko4Donetsk National Technical University, 2, Shybankova Square, Pokrovsk, Donetsk region, 85300, UkraineThe Public Militarized Mine-Rescue Service, 1, Robochyi Lane, Myrnohrad, 85323, UkraineCherkasy Institute of Fire Safety named after Chornobyl Heroes of National University of Civil Defence of Ukraine, 8, Onoprienko Street, Cherkasy, 18034, UkraineCherkasy Institute of Fire Safety named after Chornobyl Heroes of National University of Civil Defence of Ukraine, 8, Onoprienko Street, Cherkasy, 18034, UkraineCherkasy Institute of Fire Safety named after Chornobyl Heroes of National University of Civil Defence of Ukraine, 8, Onoprienko Street, Cherkasy, 18034, UkraineThe object of this paper is to study the specificity of the dynamics of carbon monoxide in mining to determine the location of the source of coal self-heating or spontaneous combustion. The Fire Dynamics Simulator software package was used to model the gas hazard of coal mine workings. Given the typical details for the western coal basin of Donbas geo metric dimensions of workings, properties of coal, etc., a model of a fragment of emergency mining of a coal mine was created, which allows for the display of geometric and physical similarity to processes in actual mine workings. The results of the simulation for the studied scenarios with different air supply systems related to the detection and location of sources of self-heating or spontaneous combustion in the coal mine workings were obtained and analysed. It was established that low-density fire gases are concentrated in the vault of the workings, where they slowly dissolve in the air, with the dissolution process being linear. It was revealed that air velocity up to 0.67 to 0.7 m/s contributes to the formation of fire gas flows, which move towards the ventilation flow, almost without mixing, which is referred to as bifurcation. Numerical parameters of fire gas dynamics in near-real conditions were established, which can become a basis for the detection and location of sources of endogenous thermodynamic processes in mine workings.https://hrcak.srce.hr/file/369381underground firessimulationcarbon monoxidefire dynamics simulatormine workingcoalspontaneous combustion |
| spellingShingle | Viktor Kostenko Yuriy Gamiy Tetiana Kostenko Sergii Tsvirkun Maksym Udovenko DYNAMICS OF MOTION OF GASES FROM A SOURCE OF SPONTANEOUS COMBUSTION OF COAL IN MINE WORKINGS Rudarsko-geološko-naftni Zbornik underground fires simulation carbon monoxide fire dynamics simulator mine working coal spontaneous combustion |
| title | DYNAMICS OF MOTION OF GASES FROM A SOURCE OF SPONTANEOUS COMBUSTION OF COAL IN MINE WORKINGS |
| title_full | DYNAMICS OF MOTION OF GASES FROM A SOURCE OF SPONTANEOUS COMBUSTION OF COAL IN MINE WORKINGS |
| title_fullStr | DYNAMICS OF MOTION OF GASES FROM A SOURCE OF SPONTANEOUS COMBUSTION OF COAL IN MINE WORKINGS |
| title_full_unstemmed | DYNAMICS OF MOTION OF GASES FROM A SOURCE OF SPONTANEOUS COMBUSTION OF COAL IN MINE WORKINGS |
| title_short | DYNAMICS OF MOTION OF GASES FROM A SOURCE OF SPONTANEOUS COMBUSTION OF COAL IN MINE WORKINGS |
| title_sort | dynamics of motion of gases from a source of spontaneous combustion of coal in mine workings |
| topic | underground fires simulation carbon monoxide fire dynamics simulator mine working coal spontaneous combustion |
| url | https://hrcak.srce.hr/file/369381 |
| work_keys_str_mv | AT viktorkostenko dynamicsofmotionofgasesfromasourceofspontaneouscombustionofcoalinmineworkings AT yuriygamiy dynamicsofmotionofgasesfromasourceofspontaneouscombustionofcoalinmineworkings AT tetianakostenko dynamicsofmotionofgasesfromasourceofspontaneouscombustionofcoalinmineworkings AT sergiitsvirkun dynamicsofmotionofgasesfromasourceofspontaneouscombustionofcoalinmineworkings AT maksymudovenko dynamicsofmotionofgasesfromasourceofspontaneouscombustionofcoalinmineworkings |