Certificate In Mine Environmental Control Exam Practice Questions - Certificate In Mine Environmental Control (South Africa) Exam

Sigma heat content remains strictly constant during pure sensible and latent heat exchanges where liquid water evaporates at the wet-bulb temperature Sigma heat content includes the sensible heat of liquid water added to or removed from the airway, whereas enthalpy excludes it Sigma heat content is independent of barometric pressure, making it uniform across all mine depths Sigma heat content eliminates the need to measure dry-bulb temperature