Abstracts Archive

Gauge and Tube (also known as Trailing Hose or P-Q) Surveys have been widely used in underground mine ventilation for frictional pressure loss surveys and ventilation model calibrations for a very long time. They are one of the most basic types of underground ventilation measurement. However, there ...

Accurately measuring the airflow delivered by tunnel ventilation fans during site acceptance testing can be difficult due to the fan configuration and constrained sizes of adjoining plenums. Most axial flow tunnel ventilation fans are reversible with drive motors attached directly to the fan impelle...