Infiltration measurements in naturally ventilated, large multicelled buildings.

Describes validation of a simple technique for infiltration measurement in large, multicelled, naturally ventilated buildings by reference to a computer model study and by field measurements in two naturally ventilated office buildings. The salient features of the technique are: 1) a single tracer gasis used, 2) measurements need only be carried out in part of the building, 3) an initially uniform distribution of tracer is not needed, and 4) artificial mixing of the tracer with the internal air is not essential. Results show that using this technique, the overall infiltration rates of large, multicelled and naturally ventilated buildings can be obtained to a good approximation.