Refprop 91 Install |work| Jun 2026

: Go to the Developer tab and click on Excel Add-ins .

REFPROP, short for Reference Properties, is a widely used software tool for calculating thermodynamic and transport properties of pure fluids and mixtures. Developed by the National Institute of Standards and Technology (NIST), REFPROP is an essential resource for engineers, researchers, and scientists working in various fields, including chemical engineering, mechanical engineering, and materials science. In this article, we will provide a step-by-step guide on how to install REFPROP 9.1, as well as offer troubleshooting tips and insights into the software's features and applications.

Go to File > Options > Add-Ins . Select Excel Add-ins in the Manage drop-down box at the bottom, and click Go .

Before you start, ensure your system meets these modest requirements: refprop 91 install

Type =REFPROP("Water","T","P",300,101.325) into a cell. It should return a density value.

Open Command Prompt and type:

Before installing REFPROP 9.1, ensure that your system meets the minimum requirements: : Go to the Developer tab and click on Excel Add-ins

Choose unless you have a specific reason not to.

Locate your REFPROP 9.1 installation file (often named REFPROP91.EXE or found within a disk image). Right-click the installer and select . The InstallShield Wizard will launch. Click Next . Step 2: License Agreement and User Info

EES has a built-in REFPROP call. After installation, simply write: In this article, we will provide a step-by-step

If the installation fails, right-click the installer and select "Run as Administrator."

: 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 You can only install it if you purchased it before the version was superseded.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.