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Comparison of the perfluorocarbon and tracer gas decay methods for assessing infiltration rates in residents

Author
Schaap, L.
Published
United States : [publisher not identified], 1985
Springfield, Va.: National Technical Information Service, [approximately 1985]
Physical Description
microfiche : negative ; 11 x 15 cm
Additional Creators
Dietz, R. N., Leaderer, B. P., Renes, S., Tosun, T., and Verstraelen, H.

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Summary
The passive perfluorocarbon tracer (PFT) technique for determining air infiltration rates into homes and buildings was evaluated in an environmental chamber. The impact of sampler orientation at a constant ventilation rate and a constant temperature, of variable ventilation rate at a constant temperature, and of variable temperature at a constant ventilation rate were evaluated. The average relative standard deviation of 16 paired samplers deployed in experiment 1 was +- 1.9% +- 1.0% indicating good reproducibility of the passive sampling rate and sample analysis. No impact of sampler orientation with respect to low air velocities (<0.2 m/s) present in houses is expected. The passive samplers accurately measured the average tracer concentration as compared with calculations based on the known source strength (CO2 decays) and the measured ventilation rate under conditions of a 3-fold variation in ventilation rates (experiment 2). Temperature cycling differences of 8/sup 0/C (experiment 3) did not produce a bias in the PFT determined ventilation rate. The PFT technique is applicable to the expected range of condition in homes and buildings. 3 refs., 1 fig., 1 tab.
Report Numbers
DE85010385; DOE/CH/00016-T5
Other Subject(s)
Collection
NTIS collection.
Note
DOE contract number: AC02-76CH00016
OSTI Identifier 5754081
Research organization: Brookhaven National Lab., Upton, NY (USA).
View MARC record | catkey: 47352889