As of my last update, direct links to software downloads can change frequently. However, a persistent link to REFPROP might be found on the NIST Thermodynamics Research Center (TRC) webpage: https://trc.nist.gov/ .
If a simulation fails with a "Fluid file not found" error, verify that your program is pointing to the correct FLUIDS subdirectory inside your main REFPROP folder.
: Version 10.0 introduced a shared library for macOS.
Version 9.1 was not just a minor update; it was a substantial upgrade that improved stability, speed, and functionality. nist refprop 91 download hot
NIST REFPROP 9.1 is a legacy version of the database used for calculating the thermodynamic and transport properties of industrial fluids. Download and Official Status
– Modders for factory-building games have used REFPROP data to make their virtual heat exchangers behave realistically. Searching for “REFPROP 9.1 download” often leads to Reddit threads in r/factorio or r/Stationeers, where users share property tables for in-game cryogenics.
: It provided a dedicated 64-bit DLL natively compatible with modern 64-bit computation ecosystems. As of my last update, direct links to
: Purchase and download the software officially via the Standard Reference Data Program (SRDP) or authorized distributors like the Office of Standard Reference Data.
If you need REFPROP for your work, there are better (and safer) ways to get it than hunting for a sketchy download link:
| Feature | REFPROP 9.1 | REFPROP 10 (Current Version) | | :--- | :--- | :--- | | | Users must learn and call specific routines ( TPFLSH , THERM ). | A single, universal function replaces most calls, simplifying usage and programming. | | Mixture Models | Uses established mixture models. | Incorporated more advanced models, but could produce different results for complex mixtures, notably those involving nitrogen and oxygen. | | Fluid Database | 105 pure fluids. | Expanded fluid database (121+ pure fluids) and allows mixtures of up to 20 components. | | Mac Support | Primarily Windows-based. | Introduced a proper shared library for macOS, enabling use with Python and Excel 2011 on Mac systems. | | Speed | Threadsafe and supports multi-core. | Highly optimized Fortran code for even faster calculation speeds and improved convergence. | | Excel Integration | A sample spreadsheet for linking the DLL. | A new Excel file with many more examples and better documentation. | : Version 10
: Use the search function on the NIST website to look for "REFPROP" or "NIST REFPROP." This should lead you directly to the relevant page.
But if you are looking for a quick download link, you might run into some roadblocks. Here is the current situation regarding REFPROP 9.1 and how you can get access to it safely.
REFPROP is a proprietary database and is not available for free download through official channels .