Sb. Riffat et Kw. Cheong, MEASUREMENT OF VENTILATION AND AEROSOL-PARTICLES IN BUILDINGS, International journal of energy research, 17(1), 1993, pp. 45-55
Citations number
NO
Categorie Soggetti
Energy & Fuels",Engineering,"Nuclear Sciences & Tecnology
The work described in the paper is concerned with the measurement of t
he flow of tracer gas and aerosol particles in rooms. Measurements wer
e carried out in single- and two-zone systems using SF, tracer gas and
oil-smoke particles. Initial tests were carried out in a single-zone
system using different arrangements of window opening. Results indicat
ed that tracer-gas exchange rates were generally higher than particle
exchange rates. This was due to the fact that the ventilation air ente
ring the zone contained a significant concentration of particles but a
negligible quantity of tracer gas. The exchange rates of tracer gas a
nd smoke particles through a doorway were also measured in a two-zone
system. The doorway coefficients of discharge were calculated using a
theory based on the Bernoulli equation. The coefficients of discharge
for the opening were in the range 0.4-0.96 for tracer gas measurements
and 0.15-0.42 for smoke-particle measurements.