In the case where there is no ventilation model available the process is simple and straightforward.
John Rowland uses and relies on “Ventsim” software which is a world class modelling tool and by far the most popular software in use in Australia.
The client furnishes John with a plan along with quantity and pressure data from site measurements and a rough model is assembled in the Dallas office.
The accuracy of the model is then validated against measured data and John will normally spend a number of days underground picking up sufficient data to accurately validate the newly built model.
The completed model will be handed over to the client along with suggestions on how to maintain it on a regular basis.
Ventsim Model Updates
Dallas Mining specialise in updating and validating dated and inaccurate ventilation models.
Sometimes this may require dragging hoses around the pit to measure individual resistances such as overcast and L/W faces but rarely involves a full pressure/quantity survey.
The technique normally involves a couple of days underground re-establishing appropriate stations and gathering the flows and differential pressures required to get the model back into tune
When completed the client will have a functional validated and aesthetically pleasing model with which to work. The challenge then is to keep it that way and with the right tips and a bit of commitment minesite staff can keep it in a good state of tune at all times ready for any predictive work that may be necessary.
VENTSIM SOFTWARE Underground Mine Ventilation Simulation Software Full details: www.ventsim.com