Implementation of well-mixed zone model for naturally ventilated buildings

The aim of that study was to determine the best technical method for the measurement of ventilation rate in naturally ventilated buildings. First, a literary survey was performed on the current methods : traditional tracer gas method appears the most reliable technique, but the accuracy of the method could be increased by a better understanding of the mixing within the whole system. For that reason the whole volume has been divided into fictitious zones and the interaction between them has been considered.