IN-91-18-4 -- Field Studies on Ventilation Efficiency in Mechanically Ventilated Rooms PDF

Summarizes results from measurements with a relatively simple tracer gas technique of the air distribution in a number of conference rooms and classrooms with different ventilation systems. The method is based on the initial injection and mixing of N2O and recording of the decay curve at five or six points at a time. Measurements were carried out in empty rooms and in the same rooms with the lighting on and a heat load simulating people. Supplies and comments on the findings.

KEYWORDS: Ventilation, efficiency, tracers, monitoring, site testing