This guide applies to REFPROP Version 9.1 (circa 2013). For the latest updates, please visit the official NIST REFPROP website.
: NIST no longer sells new licenses for version 9.1. You can only install it if you purchased it before the version was superseded. If you lack a legitimate installer and license, consider purchasing the current version from NIST or using the free NIST REFPROP web API.
: Windows XP through Windows 11 (32-bit or 64-bit). refprop 91 install
Once installed, you can link the REFPROP database to external applications like MATLAB, Excel, or Python: Microsoft Excel Linking Open Microsoft Excel on your computer.
from ctypes import cdll, c_double refprop = cdll.LoadLibrary(r'C:\Program Files (x86)\REFPROP\REFPROP.dll') This guide applies to REFPROP Version 9
Windows 98, 2000, XP, Vista, 7, 8, or similar (both 32-bit and 64-bit are supported).
Ensure all fluid files ( .fld ) and mixture files ( .mix ) are checked. This guarantees you have access to the full database of pure fluids and standard mixtures (like R410A or Air). You can only install it if you purchased
Open Command Prompt and type: