The principles of a homogeneous tracer pulse technique for measurement of ventilation and air distribution in buildings.

摘要

The principles of a new tracer gas technique is described in the paper. The new technique involves pulse injection fo tracer gas and has the same advantages as the previously known homogeneous emission technique. It can for example advantageously be used in large buildins and buildings with many rooms and yields information on the distribution of ventilation air within the building. However, contrary to the homogeneous emission technique, yielding the average ventilation performance during an extended time, the new technique allows measurement during short term periods.