Naslov
Decreasing of the air humidity by the ventilation control in the St. Barbara mine

Autori
Klanfar, Mario ; Herceg, Vjekoslav ; Šarko, David ; Mrvoš, Luka

Izvornik
Mining and Metallurgy Engineering Bor (2334-8836) (2022), 1; 1-8

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
visitor mine ; ventilation ; dehumidification ; automatization ; timbering support

Sažetak
The St. Barbara mine is a visitor 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 automatic ventilation control and adjustment to the psychrometric conditions.

Izvorni jezik
Engleski

Znanstvena područja
Rudarstvo, nafta i geološko inženjerstvo, Strojarstvo

POVEZANOST RADA