Nist Refprop 9 [repack]

: Capable of calculating vapor-liquid, liquid-liquid, and solid-liquid systems.

For pure fluids, REFPROP 9 primarily utilizes wide-range equations of state formulated in terms of . These models are explicitly explicit in dimensionless Helmholtz energy, using temperature and density as the independent variables. This mathematical formulation allows for the direct derivation of all other thermodynamic properties through differentiation, minimizing compounding computational errors. Modified Benedict-Webb-Rubin (MBWR) Equation

Disclaimer: As of 2026, newer versions of REFPROP are available. Always consider using the most recent version for updated, cutting-edge accuracy unless specific legacy compatibility is required.

The addition of the GERG-2008 mixture model, greatly improving natural gas VLE calculations. New equations of state for modern HFO refrigerants. nist refprop 9

: Beyond its graphical user interface (GUI), it is accessible via an Excel spreadsheet add-in, FORTRAN DLL, and sample code for Python, C++, and MATLAB. Industry Applications

REFPROP v9.0 brought substantial enhancements to the database's functionality, cementing its role in industry and academia:

The temperature gauge held at 112.01 K. The pressure at 449.9 kPa. The addition of the GERG-2008 mixture model, greatly

For embedding fluid property routines into proprietary simulation code. Legacy Value of Version 9

The software is widely used to calculate essential properties, including:

While Version 9 was a major milestone, it has since been superseded by REFPROP 10 and sample code for Python

NIST REFPROP is . The pricing for version 10 (which supersedes version 9) is:

If you are currently working on a simulation project, tell me: