%0 Journal Article %1 lemmon:593 %A Lemmon, Eric W. %A Jacobsen, Richard T %D 2004 %I NIST %J Journal of Physical and Chemical Reference Data %K 2004 R125 R134a R32 equation-of-state mixture multi-component %N 2 %P 593-620 %R 10.1063/1.1649997 %T Equations of State for Mixtures of R-32, R-125, R-134a, R-143a, and R-152a %U http://dx.doi.org/10.1063/1.1649997 %V 33 %X Mixture models explicit in Helmholtz energy have been developed to calculate the thermodynamic properties of refrigerant mixtures containing R-32, R-125, R-134a, R143a, and R-152a. The Helmholtz energy of the mixture is the sum of the ideal gas contribution, the compressibility (or real fluid) contribution, and the contribution from mixing. The independent variables are the density, temperature, and composition. The model may be used to calculate the thermodynamic properties of mixtures, including dew and bubble point properties, within the experimental uncertainties of the available measured properties. It incorporates the most accurate equations of state available for each pure fluid. The estimated uncertainties of calculated properties are 0.1% in density and 0.5% in heat capacities and in the speed of sound. Calculated bubble point pressures have typical uncertainties of 0.5%.

@article{lemmon:593, abstract = {Mixture models explicit in Helmholtz energy have been developed to calculate the thermodynamic properties of refrigerant mixtures containing R-32, R-125, R-134a, R143a, and R-152a. The Helmholtz energy of the mixture is the sum of the ideal gas contribution, the compressibility (or real fluid) contribution, and the contribution from mixing. The independent variables are the density, temperature, and composition. The model may be used to calculate the thermodynamic properties of mixtures, including dew and bubble point properties, within the experimental uncertainties of the available measured properties. It incorporates the most accurate equations of state available for each pure fluid. The estimated uncertainties of calculated properties are 0.1% in density and 0.5% in heat capacities and in the speed of sound. Calculated bubble point pressures have typical uncertainties of 0.5%.}, added-at = {2012-10-15T12:25:04.000+0200}, author = {Lemmon, Eric W. and Jacobsen, Richard T}, biburl = {https://www.bibsonomy.org/bibtex/2485b9732ff6034c70670bdf404ad315d/thorade}, description = {Equations of State for Mixtures of R-32, R-125, R-134a, R-143a, and R-152a | J. Phys. Chem. Ref. Data - Journal of Physical and Chemical Reference Data}, doi = {10.1063/1.1649997}, interhash = {3348eea3abe6734610e8ae4431197c7b}, intrahash = {485b9732ff6034c70670bdf404ad315d}, journal = {Journal of Physical and Chemical Reference Data}, keywords = {2004 R125 R134a R32 equation-of-state mixture multi-component}, number = 2, pages = {593-620}, publisher = {NIST}, timestamp = {2012-10-15T12:25:04.000+0200}, title = {Equations of State for Mixtures of R-32, R-125, R-134a, R-143a, and R-152a}, url = {http://dx.doi.org/10.1063/1.1649997}, volume = 33, year = 2004 }