Refprop 91 Install [portable] Jun 2026

: The software installs by default to C:\Program Files (x86)\REFPROP on 64-bit systems or C:\Program Files\REFPROP on 32-bit systems.

), many users prefer installing it to a simpler path without spaces, such as C:\REFPROP , to avoid path-string errors in code. 2. Linking the DLL The core of REFPROP is the REFPROP.DLL file. For the software to be "visible" to your system: System Environment Variables: Add the REFPROP installation folder to your Windows

If using a CD, insert it and run the setup file (e.g., D:\NIST2391.EXE ). If you have a downloaded version, double-click the .exe file (often named nist2391.exe ). refprop 91 install

To use REFPROP 9.1 in MATLAB, you need a wrapper file (often provided in the MATLAB subfolder of the installation). In MATLAB, use addpath('C:\Program Files (x86)\REFPROP') . Use the refpropm.m function to call properties.

One of the most powerful features of REFPROP 9.1 is its Excel add-in. Follow these steps to ensure the .xlam file is trusted and properly installed: Open Microsoft Excel. : The software installs by default to C:\Program

REFPROP (Reference Fluid Thermodynamic and Transport Properties) is the industry-standard software developed by the National Institute of Standards and Technology (NIST). Version 9.1 is a legacy iteration that remains widely used in industry for its stability and extensive database of pure fluids and mixtures. Unlike modern subscription models, 9.1 was typically distributed as a perpetual license, making the installation process distinct from newer versions.

: Find the REFPRP91.XLA file, typically located in your main REFPROP installation folder (e.g., C:\Program Files (x86)\REFPROP ). Linking the DLL The core of REFPROP is the REFPROP

: Windows XP, 7, 8, 10, or 11 (32-bit or 64-bit). Storage : At least 10–20 MB of available hard disk space. 2. Standard Installation Steps

: Execute the file and follow the on-screen prompts. The default installation path is usually C:\Program Files\REFPROP