: Run the installer executable (typically from a CD-ROM or digital download from NIST ).
: Add the REFPROP directory to your system's "Path" variable to allow the system to locate the REFPROP.DLL Linking REFPROP 9.1 with Microsoft Excel
After a successful installation, some additional steps are required to ensure the program and its various interfaces function correctly, particularly when linking with other software like Excel. REFPROP 9.1 uses an environment variable called . While the installer may create it for you, it's essential to verify its existence and path. refprop 91 install
: Path mismatch or missing fluid database files. Solution : Reinstall using the Custom option and explicitly select every fluid group. Alternatively, set the environment variable REFPROP_FLUID_PATH to the folder containing .FLD files.
Click and navigate to your REFPROP installation directory. Select the file named REFBRO32.XLA or REFPROP.XLA . Check the box next to REFPROP and click OK to activate it. Python Integration Open your command prompt or terminal. : Run the installer executable (typically from a
NIST has provided interfaces for several programming languages, and the user community has developed many more.
Press the , type Environment Variables , and select Edit the system environment variables . While the installer may create it for you,
Before beginning the installation, ensure your system meets these basic requirements: Operating System
This guide applies to REFPROP Version 9.1 (circa 2013). For the latest updates, please visit the official NIST REFPROP website.
Integrating REFPROP 9.1 with Excel is one of its most common use cases, allowing for thermodynamic calculations directly within spreadsheets. : Open Excel and navigate to the Developer tab. Select Excel Add-ins and click Browse .
Many users utilize REFPROP as a backend for Excel or MATLAB.