Adjiski, Vancho and Mirakovski, Dejan and Despodov, Zoran and Mijalkovski, Stojance (2018) Method for determining the Air Change Effectiveness of the auxiliary forcing ventilation system in underground mines using CFD software. Mining Science, 25. pp. 175-192. ISSN 2300-9586
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Abstract
Auxiliary forcing ventilation system is the most common air distribution system of the development
headings in underground mines. This paper reports the development of numerical analysis for
calculating the Air Change Effectiveness (ACE) of ventilation performance for auxiliary forcing ventilation
system in underground mines. The methodology presented in this paper will be demonstrated
through Computational Fluid Dynamics (CFD) modelling and calculated in accordance with ASHRAE
F25-1997 methodology. Local age, Mean Age of Air (MAA) and ACE were calculated in three scenarios
using CFD modelling to study the ventilation performance. ACE was calculated at locations in the development
headings occupied space, based on the MAA from the same ventilation system parameters in
three different scenarios. Simulation results indicate that ACE is influenced due to the involvement of
objects in the development heading that can reduce the effective volume of the zone. This study provides
some new ideas for measuring ACE which can provide better auxiliary ventilation system in underground
mines. The proposed methodology could be applied as guidance for design and setup of auxiliary ventilation
systems. Results from this CFD modelling will be used for extensive validation study which purpose
will be to prove the accuracy of the methodology and, if necessary, to improve it.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | underground mines, auxiliary ventilation, development heading, air change effectiveness, mean age of air |
| Subjects: | Engineering and Technology > Other engineering and technologies |
| Divisions: | Faculty of Natural and Technical Sciences |
| Depositing User: | Vanco Adziski |
| Date Deposited: | 28 Nov 2018 11:11 |
| Last Modified: | 28 Nov 2018 11:11 |
| URI: | https://eprints.ugd.edu.mk/id/eprint/20879 |
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