Thermodynamic processes of the air flowing through a ventilation shaft in underground mines

Abstract

The paper describes the application of the Mollier diagram and the procedure of its modification, presented in the article (Ptaszyński, 2016), for the analysis of thermodynamic transitions of the humid air stream flowing through mine ducts in conditions of highly variable static pressure. Exemplary measurement data have been used to perform the scrutiny of thermodynamic processes of the air during its flow as well as to determine the type of mass water sources occurring there as result of water vapour condensation, and their mass flow rates.