Measuring and testing – With fluid pressure – Leakage
Patent
1985-06-21
1987-01-13
Levy, Stewart J.
Measuring and testing
With fluid pressure
Leakage
G01M 326
Patent
active
046354697
ABSTRACT:
Disclosed are methods and apparatus for measuring tightness of an enclosure such as a building by utilizing alternating pressurization techniques. One method comprises providing apparatus capable of causing an internal volume change for the enclosure, the apparatus including a means for determining the instantaneous volume change, and a means for determining the instantaneous pressure within the enclosure. The apparatus is operated within the enclosure to change the volume thereof, and at least one of the frequency and the displacement is adjusted to achieve a root mean square pressure in the enclosure approximately equal to a reference pressure. At that pressure, the leakage of the enclosure is determined from the instantaneous displacement and instantaneous pressure values.
REFERENCES:
patent: 4116043 (1978-09-01), Pencak
patent: 4363236 (1982-12-01), Meyers
patent: 4420969 (1983-12-01), Saum
patent: 4445364 (1984-05-01), Stieff
patent: 4449393 (1984-05-01), Tucker et al.
patent: 4510791 (1985-04-01), Yuill
patent: 4517826 (1985-05-01), Cole et al.
Blomsterberg et al. Approaches to Evaluation of Air Infiltration Energy Losses in Buildings, In ASHRAE Transactions, vol. 85, part 1, p. 1979.
M. H. Sherman et al. "The Pressure Leakage Function of a Building", Lawrence Berkeley Laboratory, Nov. 19.
W. H. Card et al., "Air Leakage Measurement of Building by an Infrasonic Method", Suracuse University, Jan. 1978.
W. H. Card et al. "Infrasonic Measurement of Building Air Leakage", A Progress Report, Building Air Change Rate and Infiltration.
Measurements ASTM STP 719, C. M. Hunt et al. eds., American Society for Testing and Materials, 1980, pp. 73-80.
Modera Mark P.
Sherman Max H.
Levy Stewart J.
Roskos Joseph W.
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