How to Install REFPROP 9.1: A Complete Step-by-Step Guide NIST’s REFPROP (Reference Fluid Thermodynamic and Transport Properties) is the gold standard for researchers and engineers needing accurate thermophysical properties of fluids. While newer versions exist, remains widely used due to its stability and compatibility with legacy academic and industrial software.

Pro-tip: If you plan on using Python or MATLAB extensively, some users prefer installing to a simpler path like C:\REFPROP to avoid permission issues or "Space in filename" errors in code.

At the bottom, select from the "Manage" dropdown and click Go .

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Pro-tip: If you plan on using Python or MATLAB extensively, some users prefer installing to a simpler path like C:\REFPROP to avoid permission issues or "Space in filename" errors in code.

At the bottom, select from the "Manage" dropdown and click Go .