caa a22 4500 46575533X CHVBK 20180323111845.0 cr unu---uuuuu 170327e19900101xx s 000 0 eng 10.1007/BF00503868 doi (NATIONALLICENCE)springer-10.1007/BF00503868 A thermodynamic property formulation for air. I. Single-phase equation of state from 60 to 873 K at pressures to 70 MPa [Elektronische Daten] [R. Jacobsen, W. Clarke, S. Penoncello, R. McCarty] A revised interim formulation for the thermodynamic properties of air has been developed for calculating properties of the vapor and estimating properties for the liquid at temperatures as low as 60 K. The formulation incorporates separate equations for the calculation of bubble-point and dew-point pressures and densities and for the ideal-gas heat capacity. A new fundamental equation of state is given for vapor and liquid states of air based upon available experimental data and predicted values of isochoric heat capacity for the liquid using corresponding states methods. Procedures for predicting C v are discussed. The fundamental equation for air is explicit in nondimensional Helmholtz energy. The terms of the fundamental equation were selected from a larger set of 75 proposed terms using a least-squares fitting procedure. Representative graphical comparisons of calculated property values to experimental measurements are given. The estimated accuracy of calculated densities is generally ± 0.2% except near the dew and bubble lines. Calculated heat capacities for the liquid must be considered only as estimates until substantiated by experimental measurements. Plenum Publishing Corporation, 1990 air nationallicence density nationallicence equation of state nationallicence fundamental equation nationallicence heat capacity nationallicence thermodynamic properties nationallicence velocity of sound nationallicence Jacobsen R. Center for Applied Thermodynamic Studies, University of Idaho, 83843, Moscow, Idaho, USA aut Clarke W. Center for Applied Thermodynamic Studies, University of Idaho, 83843, Moscow, Idaho, USA aut Penoncello S. Center for Applied Thermodynamic Studies, University of North Dakota, 58202, Grand Forks, North Dakota, USA aut McCarty R. Thermophysics Division, National Institute of Standards and Technology, 80303, Boulder, Colorado, USA aut International Journal of Thermophysics Kluwer Academic Publishers-Plenum Publishers 11/1(1990-01-01), 169-177 0195-928X 11:1<169 1990 11 10765 https://doi.org/10.1007/BF00503868 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00503868 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Jacobsen R. Center for Applied Thermodynamic Studies, University of Idaho, 83843, Moscow, Idaho, USA aut NATIONALLICENCE 700 1- Clarke W. Center for Applied Thermodynamic Studies, University of Idaho, 83843, Moscow, Idaho, USA aut NATIONALLICENCE 700 1- Penoncello S. Center for Applied Thermodynamic Studies, University of North Dakota, 58202, Grand Forks, North Dakota, USA aut NATIONALLICENCE 700 1- McCarty R. Thermophysics Division, National Institute of Standards and Technology, 80303, Boulder, Colorado, USA aut NATIONALLICENCE 773 0- International Journal of Thermophysics Kluwer Academic Publishers-Plenum Publishers 11/1(1990-01-01), 169-177 0195-928X 11:1<169 1990 11 10765 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer