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IN-91-12-1 (RP-594) — Repeatability and Reproducibility of Fan Pressurization Devices in Measuring Building Air Leakage

$7.50

Conference Proceeding by ASHRAE, 1991

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Description

Describes a test using four fan pressurization devices with three different operators to conduct round-robin tests on four different houses according to accepted test standards. The test results were analysed for significant trends using a standard procedure for interlaboratory test programs. The results that the extrapolation of test results to a house pressure of 4 Pa produced a 95% reproducibility interval of plus or minus 23.5% when averaged for all four test houses. At that condition, the impact of the operators was less than plus or minus 5%. At 50 Pa house pressure, these figures were plus or minus 7.5% and plus or minus 2%, respectively. The large interval at 4 Pa is largely a function of the statistical relationships when extrapolating far beyond the experimental measurements, as well as an effect of the less accurate low-pressure measurements being given greater weighting in the least-squares method.

KEYWORDS: fans, pressurization, air infiltration, buildings, measuring, testing, housing

Citation: Symposium, ASHRAE Trans. 1991, vol.97, part 2

Product Details

Published:
1991
File Size:
1 file , 1.3 MB
Product Code(s):
D-18312