DEVELOPMENT OF ENGINEERING DESIGN-DATA FOR NEW REFRIGERANTS .1. PURE FLUIDS AND AZEOTROPIC MIXTURES

It is important to correlate thermodynamic data for replacements for C FCs and HCFCs and present it in a form that will allow industry to des ign equipment from charts rather than complicated thermodynamic equati ons. This paper outlines the development of such equations for the mor e popular of these fluids. Sample pressure-enthalpy diagrams are then given for the pure fluids. In addition, since replacements for CFCs an d HCFCs can be formed from both zeotropic and azeotropic mixtures of t hese fluids, the use of a typical mixing rule is discussed and initial results presented.