The St.Barbara mine is a visitor g5210t-p90 mine having a large amount of timbering support which is deteriorating fast due to the high humidity conditions.The air conditioning system of mining is not suitable and also expensive for implementation in a shallow non-productive mine.As there are no usual air contaminants in the visitor mines, ventilation could be powered only when a dew point of outside air is below the strata temperature.Applying this rule would certainly avoid condensation, but also raises a potential for partial dehumidification of mine walls as moisture can evaporate in these conditions.
A microclimate analysis, based on one-year data, has showed that these favorable conditions of the outside air occur through the major part of the year.Their availability is mostly 100%, but during summertime there are periods when it drops down to 13%.A real time monitoring system with programable microcontroller allows the citronella horse shampoo automatic ventilation control and adjustment to the psychrometric conditions.