EXPERIMENTAL STUDY OF THE EFFECTS OF COAL DUST PARTICLE SIZE ON LAMINAR BURNING VELOCITY IN A MIXTURE OF COAL DUST AND METHAN
This study investigates the effect of variations of coal dust particles size on the rate of burning of coal dust particles in a 2-liter closed chamber. Coal dust was selected from three different mines with different sizes (149μm, 125μm, 105μm, 74μm, 63μm, 53μm, 44μm, 37μm) for explosion testing in...
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| Format: | Article |
| Language: | English |
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Faculty of Mining, Geology and Petroleum Engineering
2019-01-01
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| Series: | Rudarsko-geološko-naftni Zbornik |
| Subjects: | |
| Online Access: | https://hrcak.srce.hr/file/332032 |
| _version_ | 1797207346780307456 |
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| author | Hadis Moradi Farhang Sereshki Mohammad Ataei Mohsen Nazari |
| author_facet | Hadis Moradi Farhang Sereshki Mohammad Ataei Mohsen Nazari |
| author_sort | Hadis Moradi |
| collection | DOAJ |
| description | This study investigates the effect of variations of coal dust particles size on the rate of burning of coal dust particles in a 2-liter closed chamber. Coal dust was selected from three different mines with different sizes (149μm, 125μm, 105μm, 74μm, 63μm, 53μm, 44μm, 37μm) for explosion testing in a closed chamber of 2-liters. In this analysis, the concentration of coal dust was considered constant (10000 g/m3), all tests were carried out at a pressure of 1.5 bar and the initial temperature was 25 °C. To calculate the burning rate, the explosion severity parameters of each sample, such as the maximum explosion pressure, the maximum rate of increase in pressure, and the explosion index must be determined during various tests. The results of the experiments show that by variating the size of the coal dust particles, the burning rate of the particles also changes and there is an inverse relationship between them. Coal dust particles with dimensions of 44μm and 37 μm have a higher burning velocity than other dimensions. Thus, with a reduction in the size of coal dust particles, the burning velocity of coal dust increases. The outcomes acquired in this examination are not just valuable in developing information on coal dust explosion processes, but also improve the measures needed to prevent coal dust explosions in coal mines. |
| first_indexed | 2024-04-24T09:21:27Z |
| format | Article |
| id | doaj.art-7ca203c217cd4ec0b6c47210a8d2ae9f |
| institution | Directory Open Access Journal |
| issn | 0353-4529 1849-0409 |
| language | English |
| last_indexed | 2024-04-24T09:21:27Z |
| publishDate | 2019-01-01 |
| publisher | Faculty of Mining, Geology and Petroleum Engineering |
| record_format | Article |
| series | Rudarsko-geološko-naftni Zbornik |
| spelling | doaj.art-7ca203c217cd4ec0b6c47210a8d2ae9f2024-04-15T15:44:07ZengFaculty of Mining, Geology and Petroleum EngineeringRudarsko-geološko-naftni Zbornik0353-45291849-04092019-01-01344475510.17794/rgn.2019.4.5EXPERIMENTAL STUDY OF THE EFFECTS OF COAL DUST PARTICLE SIZE ON LAMINAR BURNING VELOCITY IN A MIXTURE OF COAL DUST AND METHANHadis Moradi0Farhang Sereshki1Mohammad Ataei2Mohsen Nazari3Ph.D. Student of Faculty of Mining Petroleum & Geophysics Engineering, Shahrood University of Technology, Shahrood, IranProfessor of Faculty of Mining Petroleum & Geophysics Engineering, Shahrood University of Technology, Shahrood, IranProfessor of Faculty of Mining Petroleum & Geophysics Engineering, Shahrood University of Technology, Shahrood, IranAssociate Professor, PhD in Mechanical Engineering, Shahrood University of Technology, Shahrood, IranThis study investigates the effect of variations of coal dust particles size on the rate of burning of coal dust particles in a 2-liter closed chamber. Coal dust was selected from three different mines with different sizes (149μm, 125μm, 105μm, 74μm, 63μm, 53μm, 44μm, 37μm) for explosion testing in a closed chamber of 2-liters. In this analysis, the concentration of coal dust was considered constant (10000 g/m3), all tests were carried out at a pressure of 1.5 bar and the initial temperature was 25 °C. To calculate the burning rate, the explosion severity parameters of each sample, such as the maximum explosion pressure, the maximum rate of increase in pressure, and the explosion index must be determined during various tests. The results of the experiments show that by variating the size of the coal dust particles, the burning rate of the particles also changes and there is an inverse relationship between them. Coal dust particles with dimensions of 44μm and 37 μm have a higher burning velocity than other dimensions. Thus, with a reduction in the size of coal dust particles, the burning velocity of coal dust increases. The outcomes acquired in this examination are not just valuable in developing information on coal dust explosion processes, but also improve the measures needed to prevent coal dust explosions in coal mines.https://hrcak.srce.hr/file/332032coal dust explosion burning rate closed chamber explosion intensity particle size |
| spellingShingle | Hadis Moradi Farhang Sereshki Mohammad Ataei Mohsen Nazari EXPERIMENTAL STUDY OF THE EFFECTS OF COAL DUST PARTICLE SIZE ON LAMINAR BURNING VELOCITY IN A MIXTURE OF COAL DUST AND METHAN Rudarsko-geološko-naftni Zbornik coal dust explosion burning rate closed chamber explosion intensity particle size |
| title | EXPERIMENTAL STUDY OF THE EFFECTS OF COAL DUST PARTICLE SIZE ON LAMINAR BURNING VELOCITY IN A MIXTURE OF COAL DUST AND METHAN |
| title_full | EXPERIMENTAL STUDY OF THE EFFECTS OF COAL DUST PARTICLE SIZE ON LAMINAR BURNING VELOCITY IN A MIXTURE OF COAL DUST AND METHAN |
| title_fullStr | EXPERIMENTAL STUDY OF THE EFFECTS OF COAL DUST PARTICLE SIZE ON LAMINAR BURNING VELOCITY IN A MIXTURE OF COAL DUST AND METHAN |
| title_full_unstemmed | EXPERIMENTAL STUDY OF THE EFFECTS OF COAL DUST PARTICLE SIZE ON LAMINAR BURNING VELOCITY IN A MIXTURE OF COAL DUST AND METHAN |
| title_short | EXPERIMENTAL STUDY OF THE EFFECTS OF COAL DUST PARTICLE SIZE ON LAMINAR BURNING VELOCITY IN A MIXTURE OF COAL DUST AND METHAN |
| title_sort | experimental study of the effects of coal dust particle size on laminar burning velocity in a mixture of coal dust and methan |
| topic | coal dust explosion burning rate closed chamber explosion intensity particle size |
| url | https://hrcak.srce.hr/file/332032 |
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