The measurement of airflows using a rapid response tracer gas technique

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Abstract
The multiple tracer gas technique of I'Anson et al.1 has been improved, in order to increase the rate at which samples can be taken. Using parallel gas chromatographic separation columns, in conjunction with an electron capture detector, it is now possible to take an air/tracer gas sample every 30 seconds in the case of a 2-zone ventilation and air movement test. Rapid sampling enables a new, simplified analysis of the air movement between two connected zones to be employed. This analysis derives ventilation rates and intercell airflows simultaneously. A specimen set of results for 2 cell ventilation/air movement is given.

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