Refprop 9 0 — Portable ((better))

If you prefer to run from a different location, you may need to move the folder to C:\Program Files\REFPROP as some integration files expect this path.

Q: What are the system requirements for REFPROP 9.0 Portable? A: The system requirements for REFPROP 9.0 Portable are Windows XP, Windows 7, Windows 8, or Windows 10, 1 GHz or faster processor, 1 GB or more of RAM, and 100 MB or more of free disk space.

Instead of installing REFPROP to the operating system, point your Python script directly to your portable folder:

Engineers and students often seek out a "portable" version for specific reasons:

“This REFPROP is accurate within 1%... spreadsheet output 4230 PSIG [while gauge read 4200]. This REFPROP is amazing.” Reddit · r/AskEngineers · 4 months ago Known Issues in Version 9.0 refprop 9 0 portable

. Using "best-guess" equations for complex fluid mixtures often led to inefficient designs or equipment failure. REFPROP 9.0

It calculates properties such as density, enthalpy, entropy, viscosity, thermal conductivity, and speed of sound for pure fluids and mixtures.

Always download the software directly from the official NIST website or an authorized distributor to ensure file integrity and safety.

Addressing errors in the software's code that could lead to incorrect calculations, system crashes, or data corruption. If you prefer to run from a different

Are you working with or complex custom mixtures ?

Disclaimer: This article is for informational purposes only. We do not condone or encourage the use of pirated or cracked software. We strongly advise all readers to use legitimate and licensed software to support developers and protect their digital security.

Making REFPROP portable does not grant multi-user distribution rights. The software remains proprietary data compiled by NIST. Your portable folder must strictly adhere to the seat limits dictated by your original NIST user license.

Do not do it. The security risks—malware, data theft, ransomware—far outweigh any convenience benefit. Legitimate REFPROP licenses are reasonably priced, and the peace of mind that comes with legal, malware-free software is invaluable. Instead of installing REFPROP to the operating system,

REFPROP 9.0 looks for fluid files relative to its executable location if registry keys are missing. To ensure it searches its own folder rather than the Windows Registry: Open the portable folder.

As a NIST standard reference database, REFPROP is trusted for its rigorous scientific validation and is cited as a recommended data source by major international bodies like ISO and ASHRAE.

The NIST Reference Fluid Thermodynamic and Transport Properties Database (REFPROP) is the gold standard for engineers, scientists, and researchers who need accurate thermophysical properties of fluids and mixtures. Version 9.0 remains widely used across industries for its stability and precision. However, standard installations require administrative privileges and hardcoded registry paths, which can limit productivity. Creating a portable version of REFPROP 9.0 solves these issues, allowing you to run calculations directly from a USB drive or shared cloud folder without installation.