A vibrating-wire viscometer of very high precision was used to measure the viscosity of gaseous ethane. The experimental data were taken at subcritical temperatures of (290 and 300) K up to 88 % of the saturated vapor pressure and at supercritical temperatures of (310, 320, 340, 370, 400, and 430) K at pressures up to a maximum of 30 MPa. The measuring values were evaluated using an equation of state by Bucker and Wagner. The reproducibility is +- (0.05 to 0.1) %, whereas the total uncertainty is estimated to be +- (0.25 to 0.4) % with an increase of (1 to 2) % close to the critical point. The viscosity values of the isotherms were correlated as a function of reduced density using a power series expansion. A comparison with correlations from the literature shows deviations up to about 5 % in the near critical region and up to 2 % at higher densities and temperatures. On the basis of a comparison with direct experimental data from the literature, it is concluded that the new values are the most reliable for the improvement of the viscosity surface correlation of ethane.
Compounds
#
Formula
Name
1
C2H6
ethane
Datasets
The table above is generated from the ThermoML associated json file (link above).
POMD and RXND refer to PureOrMixture and Reaction Datasets. The compound numbers are included in properties, variables, and phases, if specificied;
the numbers refer to the table of compounds on the left.