Ventilation of open pits by wind energy

Abstract

Air exchange in quarries is formed under the action of wind energy and convective flows resulting from the temperature heterogeneity of the atmosphere by height. These factors can act together and separately.In the presence of wind and developed convective flows, air exchange is the most complete and active. The presence of only convective air flows in the absence of wind somewhat worsens air exchange, but provides active transfer of harmful impurities from the lower part of the quarry to the upper zone and beyond the quarry space. Sometimes wind energy is considered sufficient for air exchange in quarries. However, the decisive role in the implementation of air exchange in quarries play convective flows, formed due to a certain temperature stratification of the atmosphere.