Construction of the equation of a state octafluorocyclobutane in area superheated steam and supercritical parameters

Abstract

On the basis of the spent experimental researches of density C4F8 and given other authors the new equation of a state is constructed. The equation provides calculation of thermodynamic properties in superheated steam area and supercritical parameters of a condition octafluorocyclobutane. By means of the received equation of a condition tables of thermodynamic properties are made at temperatures 20 … 450ºС and pressure to 10 MPa. Accuracy of the presented settlement data about density is estimated by authors no more than 0,3 %. The data can be used at calculation of cycles turbine-steam the installations using octafluorocyklobutane as a working substance.

Keywords

• the state of equation
• density
• thermodynamic properties
• freon с318
• octafluorocyclobutane
• a new working substance