Test of new analysis methodologies to assess dynamic airflow rate with the tracer gas decay method

The measurement of natural airflows is practically challenging. Driving forces that induce natural airflows are characterized by low pressure differences. Conventional airflow-meters would introduce pressure drops, which can significantly affect the flow pattern. Besides, the measurement of the flow crossing a window is difficult to implement and poorly reliable. Thus, indirect methods called tracer gas methods are widely used to bypass these difficulties, as they do not interfere with the flow pattern.