Mattson J-B
Bibliographic info:
Air Infiltration Review, Vol 11, No 4, September 1990, pp 9-11, 5 figs, 2 refs.

In buildings with mechanical ventilation there are spaces with substantial pressure differences, which bring exfiltration, infiltration and transferred air between the rooms. For such buildings we have converted a multiple cell theory to a quadratic programming problem, and developed a computer programme, MCSPID for airflow identification. Today MCSPID is inpractical use to simultaneously determine flow rates for airsupply, exhaust air, transferred air, infiltration and exfiltration with a single tracer gas. The purpose of this paperis to describe an application in a seven room building, where all airflows are determined in an active tracer gas experiment.