DBPapers
DOI: 10.5593/SGEM2014/B13/S3.075

STUDY ON THE PARTICULAR CONDITIONS OF THE MINING VENTILATION BY USING NUMERICAL METHODS

M. Suvar,G. A. Gaman, C. Lupu, E. G. Doru Cioclea,N. Vlasin, V. Arad
Wednesday 1 October 2014 by Libadmin2014

References: 14th International Multidisciplinary Scientific GeoConference SGEM 2014, www.sgem.org, SGEM2014 Conference Proceedings, ISBN 978-619-7105-09-4 / ISSN 1314-2704, June 19-25, 2014, Book 1, Vol. 3, 575-582 pp

ABSTRACT
The mine air composition changes in terms of quality during its passing through the underground mining works, mainly due to the formation and releasing in the deposit and the surrounding rocks of toxic and explosive gases.
Knowing in detail the distribution and the parameters of the airflows, the gas dynamic phenomena relating to the mining ventilation is of high importance for ensuring the safety of workplaces, through the possibility of diminishing the intoxication and / or explosion hazards. The paper presents a series of computerized modelling achieved using the ANSYS MultiPhysics software package, starting from a specific, representative ventilation network segment. There was thus obtained a comparative study of multiple models, based either on the density or the pressure. There are also evaluated, one at a time, the transport equations in each of the three cases: stationary, transient and pseudo-transient. Modelling results are then compared with the ones obtained by using the specialised 3D CANVENT application – relative to the same real geometrical space.

Keywords: mining ventilation, numerical modelling, CFD, ANSYS, INSEMEX