Determination of the friction factors in potash mines
The friction factor is an essential parameter to take into account for modelling the ventilation system. One of the principal features that define the friction factor is the roughness, which not only does it have influence on the airway resistance, but it has also a direct bearing on the rate of hea...
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2014 |
| País: | España |
| Institución: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/28129 |
| Acceso en línea: | https://hdl.handle.net/2117/28129 https://dx.doi.org/10.1134/S1062739114050159 |
| Access Level: | acceso abierto |
| Palabra clave: | Potash mines and mining Friction Mining ventilation Friction factor Potash mine Room and pillar exploitation method Mines -- Ventilació Mines de potassa Fricció Àrees temàtiques de la UPC::Enginyeria civil::Enginyeria de mines |
| Sumario: | The friction factor is an essential parameter to take into account for modelling the ventilation system. One of the principal features that define the friction factor is the roughness, which not only does it have influence on the airway resistance, but it has also a direct bearing on the rate of heat transfer between the rock and the airstream. In this paper, the characteristic friction factors of a potash mine exploited using a room and pillar method has been determined by means of the Chezy-Darcy and Atkinson equations. The results give an impulse to achieve standardized friction factor values in potash mines very useful for future mining ventilation surveys. |
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