Estimation of zone effective-volume using tracer-gas techniques

S. B. Riffat and K. W. Cheong

Applied Energy, 1993, vol. 45, issue 4, 327-334

Abstract: The concentration-decay and pulse-injection tracer-gas techniques were used to evaluate the effective volume of a zone. Measurements of airflow rates were carried out in an environmental chamber using SF6 as the tracer gas. Results showed that the flow rate estimated from the concentration-decay technique is about 4·5-14·3% higher than actual flow rate if the effective volume of the chamber is assumed to be equal to the physical volume. The effective volume, estimated from tracer-gas measurements, was found to be about 1·5-2·7% higher than the physical volume of the chamber.

Date: 1993
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