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BBE team members have been the driving force, co-developers and managers of the mining industry’s customised software for the analysis of mine ventilation, contaminant tracking, refrigeration and cooling networks with emphasis on full thermodynamic solutions.

VUMA software is customised for the analysis of mine ventilation, contaminant tracking, refrigeration and cooling networks with particular emphasis on full thermodynamic solutions. The VUMA suite of software [VUMA-network, VUMA-chiller, VUMA-coolflow, VUMA-live] has been particularly successful. VUMA Products are based on current research and development and use state-of-art procedures and technology. All VUMA algorithms have been verified in recent work and over a development period of some two decades and represent a significant knowledge-base.

BBE have the capability and provide the service of customising any of these software products to specifically suit particular requirements. BBE also perform full Computational Fluid Dynamics (CFD) analysis of airflow in airways and drifts for optimising aerodynamic features of designs.

An agreement has been signed between VUMA and Mine Ventilation Services Inc [MVS] to make the VnetPC and VUMA software packages compatible and to mutually support development of even further enhanced software. The interface will facilitate the thermodynamic simulation in VUMA-network of VnetPC models as well as allowing fire simulations to be carried out in MineFire from VUMA.

Heat Load Prediction

Mine heat load prediction is an extremely complex science involving geothermal rock heat flow and the effect of hot rock conduction, mining cycle activities, water use activities and changing conditions on all the various rock surfaces.  It also depends on the use of equipment and machinery and their work cycles.  For example, diesel equipment, winches, winders, continuous miners, road-headers, TBMs, conveyors, pumps, crushers, backfill plants, etc. have different work cycles and heat [+moisture] release characteristics.  Each machine will have load cycles and heat factors depending on the specific application.  The mine heat load also depends on the refrigeration and air cooling tactics.

Although rock heat in the intake systems is important, the effects of stope face advance and face utilisation are critical during system design.  Important parameters in determining narrow reef stope heat loads are: rock production, virgin rock temperature, air temperature, wetness, face advance, stoping width and distance between face and dip gully which defines the extent of the ventilated worked-out-area. This is a much specialised science in which BBE has the highest level of competency.

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BBE Consulting

Phone: +27 (0)11 706 9800
Fax: +27 (0) 11 706 6931

24 Sloane Street
Bryanston Ext.34
Gauteng, South Africa
P O Box 786012
South Africa