Evaluation of the cavitation generator efficiency in the hydro impulsive loosening of a coal-bed
The paper presents the results of mining and experimental work, bench tests and theoretical studies of the energy characteristics of the stationary and pulsating fluid flow, which allow to estimate the efficiency of the cavitation generator in the hydro impulsive loosening of an outburst-prone coal-...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2019-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/35/e3sconf_rmget18_00123.pdf |
| _version_ | 1818450298588364800 |
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| author | Zberovskyi Vasyl Zhulai Yurii Mirnyi Serhii |
| author_facet | Zberovskyi Vasyl Zhulai Yurii Mirnyi Serhii |
| author_sort | Zberovskyi Vasyl |
| collection | DOAJ |
| description | The paper presents the results of mining and experimental work, bench tests and theoretical studies of the energy characteristics of the stationary and pulsating fluid flow, which allow to estimate the efficiency of the cavitation generator in the hydro impulsive loosening of an outburst-prone coal-bed. The active stage of the hydro impulsive loosening and the effective range of the amplitude-frequency (AF) spectrum of the generator operation acoustic signal have been established by the AF spectrum of the sound accompaniment of the hydro impulse impact and the backup pressure of the liquid in the well. By calculation for this range the energy characteristics of the static and dynamic components of the pulsating fluid flow were determined. This made it possible to determine that the efficiency of the cavitation generator, all other conditions of the coal-bed hydro loosening being equal, is 4.8–1.2 times higher than the efficiency of the static impact. |
| first_indexed | 2024-12-14T20:49:05Z |
| format | Article |
| id | doaj.art-9429082b26574f6fa64f4f1d958a1878 |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-12-14T20:49:05Z |
| publishDate | 2019-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-9429082b26574f6fa64f4f1d958a18782022-12-21T22:47:53ZengEDP SciencesE3S Web of Conferences2267-12422019-01-011090012310.1051/e3sconf/201910900123e3sconf_rmget18_00123Evaluation of the cavitation generator efficiency in the hydro impulsive loosening of a coal-bedZberovskyi Vasyl0Zhulai Yurii1Mirnyi Serhii2Institute of Geotechnical Mechanics named by N. Poljakov of National Academy of Sciences of UkraineInstitute of Geotechnical Mechanics named by N. Poljakov of National Academy of Sciences of UkraineInstitute of Transport Systems and Technologies of National Academy of Sciences of UkraineThe paper presents the results of mining and experimental work, bench tests and theoretical studies of the energy characteristics of the stationary and pulsating fluid flow, which allow to estimate the efficiency of the cavitation generator in the hydro impulsive loosening of an outburst-prone coal-bed. The active stage of the hydro impulsive loosening and the effective range of the amplitude-frequency (AF) spectrum of the generator operation acoustic signal have been established by the AF spectrum of the sound accompaniment of the hydro impulse impact and the backup pressure of the liquid in the well. By calculation for this range the energy characteristics of the static and dynamic components of the pulsating fluid flow were determined. This made it possible to determine that the efficiency of the cavitation generator, all other conditions of the coal-bed hydro loosening being equal, is 4.8–1.2 times higher than the efficiency of the static impact.https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/35/e3sconf_rmget18_00123.pdf |
| spellingShingle | Zberovskyi Vasyl Zhulai Yurii Mirnyi Serhii Evaluation of the cavitation generator efficiency in the hydro impulsive loosening of a coal-bed E3S Web of Conferences |
| title | Evaluation of the cavitation generator efficiency in the hydro impulsive loosening of a coal-bed |
| title_full | Evaluation of the cavitation generator efficiency in the hydro impulsive loosening of a coal-bed |
| title_fullStr | Evaluation of the cavitation generator efficiency in the hydro impulsive loosening of a coal-bed |
| title_full_unstemmed | Evaluation of the cavitation generator efficiency in the hydro impulsive loosening of a coal-bed |
| title_short | Evaluation of the cavitation generator efficiency in the hydro impulsive loosening of a coal-bed |
| title_sort | evaluation of the cavitation generator efficiency in the hydro impulsive loosening of a coal bed |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/35/e3sconf_rmget18_00123.pdf |
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