Refprop 91 Install File
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.
: 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.
Locate REFPRP91.XLA in your installation directory (or your user's library for Mac). Ensure the "Refprp91" box is checked in the Add-ins menu. :
C:\Program Files (x86)\REFPROP
To install REFPROP 9.1, you need to download the software from the NIST website. Follow these steps:
Go to File > Options > Trust Center > Trust Center Settings > Trusted Locations . Click Add new location and add the main C:\Program Files\REFPROP folder.
regsvr32 C:\Windows\SysWOW64\MSCOMCTL.OCX refprop 91 install
Example: density = refpropm('D', 'T', 300, 'P', 101.325, 'water')
REFPROP (Reference Fluid Thermodynamic and Transport Properties) is an industry-standard software developed by the National Institute of Standards and Technology (NIST). Version 9.1 is a legacy release that provides accurate thermophysical property data for a wide range of fluids and mixtures. Because Version 9.1 is older than the current Windows operating systems, the installation process requires specific attention to file directories and administrative privileges to function correctly.
Click Browse , navigate to the C:\Program Files\REFPROP folder, and select REFPROP.xlam . To use REFPROP 9
. It is highly recommended to keep this path, as many third-party wrappers look for it there by default. Verification : After installation, open the REFPROP.EXE
Installing and enabling features for usually refers to setting up its integration wrappers (like the Excel Add-in) or ensuring the DLL and fluid files are correctly linked. How to Install the REFPROP 9.1 Excel Add-in