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Compressibility Data for Helium, Nitrogen, and Helium-nitrogen Mixtures At 0 Deg, 25 Deg, and 50 Deg C and At Pressures to 1,000 Atmospheres.

Authors
Briggs-TC; Howard-AR
Source
NTIS: PB 212 481 :194 pages
Link
NIOSHTIC No.
10008880
Abstract
A special high-pressure burnett-type compressibility apparatus was constructed and used to determine compressibility factors for pure helium, pure nitrogen, and nine helium-nitrogen, mixtures containing 89.47, 79.04, 69.69, 60.09, 49.24, 41.02, 30.99, 20.53, and 10.67 Mole-percent helium. A total of 161 runs were made consisting of 2,355 observed pressures. Data were obtained at 0 deg, 25 deg, and 50 deg c at pressures to 1,000 atmospheres. A power series in the reciprocal volume, commonly called a leiden series, is used to represent the compressibility factors. Three parameters in the series are required to represent helium, five parameters to represent nitrogen, and from three to five parameters to represent the mixtures. Compressibility factors are believed to be accurate to better than 0.1 percent over the entire pressure, temperature, and composition range.
Publication Date
19720101
Document Type
IH; Report of Investigation;
Fiscal Year
1972
NTIS Accession No.
PB-212481
NTIS Price
A10
Identifying No.
RI 7639
NIOSH Division
HEFO;
Source Name
NTIS: PB 212 481
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