Refprop 91 Install -

: Windows 98, 2000, XP, Vista, 7, 8, or similar (both 32-bit and 64-bit are supported). Disk Space : Approximately 10–20 MB of available hard disk space. Core Installation Procedure

or restart your command prompt/IDE to apply the new path settings. 4. Integrating REFPROP 9.1 with External Software Integrating with Microsoft Excel

Click install. Once finished, you will see a "REFPROP" shortcut on your desktop. 3. Integrating REFPROP 9.1 with Microsoft Excel

How to Install REFPROP 9.1: A Complete Step-by-Step Guide NIST Reference Fluid Thermodynamic and Transport Properties Database (REFPROP) is the industry standard for predicting the thermophysical properties of fluid mixtures. Version 9.1 remains widely used in engineering, chemistry, and mechanical applications due to its stability and deep integration with legacy simulation tools. refprop 91 install

Before starting, ensure you have the official installation media or digital installer provided by NIST or an authorized distributor. System Requirements

If you plan on using REFPROP frequently with Python, MATLAB, or Excel, some users prefer installing it to a shorter path like C:\REFPROP to avoid issues with spaces in file paths during API calls. Step 4: Complete the Installation

: 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 You can only install it if you purchased it before the version was superseded.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 98, 2000, XP, Vista, 7, 8,

If you run into any permission errors or cannot find the required .dll files, ensure you are checking the root directory where you originally extracted the program. To help me tailor the next steps for you:

Press the , type Environment Variables , and select Edit the system environment variables .

Most Python users utilize the provided by CoolProp to access REFPROP 9.1: pip install CoreProp Use code with caution. type Environment Variables

The easiest way to use REFPROP 9.1 in Python is via the wrapper library ctypes or through the wrapper package ctREFPROP provided by NIST on GitHub.

Navigate to the tab and click Environment Variables .

The recommended default folder is C:\Program Files\REFPROP or C:\Program Files (x86)\REFPROP .

: Windows XP through Windows 11 (32-bit or 64-bit).