For new users, we recommend:
Copy to clipboard, export to CSV, or direct printing. The interface also includes a phase diagram plotting tool (P-h, T-s, P-v, etc.), though graphics are basic compared to modern tools. refprop 9.1
The standalone interface of REFPROP 9.1 is utilitarian but highly functional. Upon launching, the user selects: For new users, we recommend: Copy to clipboard,
While newer versions offer additional fluids and a modern interface, the 9.1 release represents the maturation of computational thermodynamics—a tool that, even years after its release, remains an indispensable part of the engineer’s toolkit. Upon launching, the user selects: While newer versions
NIST Standard Reference Database 23: Reference Fluid Thermodynamic and Transport Properties-REFPROP, Version 9.1
For any given state point (defined by two independent variables, such as Temperature & Pressure or Pressure & Enthalpy), REFPROP 9.1 returns:
is a sophisticated computer program developed by the National Institute of Standards and Technology (NIST) to calculate the thermophysical and transport properties of industrially significant fluids and their mixtures. Standing for "REFerence fluid PROPerties," this version was released in 2013 as a significant update to the NIST Standard Reference Database 23. Key Features of REFPROP 9.1