I recently spoke with a freelance thermal systems designer, "Marta" (name changed). She admitted to using a "Refprop 9.0 portable" for a year. Everything seemed fine until a client required her to submit a validation report for a propane heat pump. She ran the same calculation (propane saturation pressure at 50°C) on the portable version vs. the official trial. The portable version reported ; the official version reported 1.847 MPa . The difference is 2.5%—outside of ASHRAE standard tolerance. She had to re-simulate 40 hours of work. Now she uses the academic license.
NIST is a comprehensive software program for calculating the thermophysical properties of industrially important fluids and their mixtures. While it is typically distributed via an installer for Windows, it can be treated as a "portable" application because its core functionality resides within a set of data files and a Dynamic Link Library (DLL). Core Features of REFPROP 9.0 refprop 9 0 portable
Accurate calculations for viscosity and thermal conductivity, not just pressure-volume-temperature (PVT) data. Troubleshooting Common Portable Issues I recently spoke with a freelance thermal systems