1988 Volume 5 Issue 3 Pages 371-378
Based on the available experimental PVT measurements reported in the literature, a modified BWR equation of state for refrigerant R115 (C2CIF5) is proposed. The characteristics of derived thermodynamic properties such as the isochoric specific heat capacity, the isobaric specific heat capacity and the speed of sound have been critically examined in developing the present equation. The auxiliary saturated liquid density equation, which has been used to calculate the saturated thermodynamic properties over a wide range of temperatures, is also developed. The developed equation is effective for a range of temperatures from 220K to 450K and of pressures up to 10 MPa which corresponds to the density range up to 1,244 kg/m3. Comparisons with the available equations of state are also discussed here.
