import os import ctypes # Dynamically locate the portable DLL based on the script location portable_dir = os.path.dirname(os.path.abspath(__file__)) dll_path = os.path.join(portable_dir, "REFPRP64.DLL") # Load the library refprop = ctypes.CDLL(dll_path) Use code with caution. Important Legal and Security Considerations
Run the software on restricted office or university computers.
Engineers often work on different computers—a desktop in the office, a laptop at home, and perhaps a restricted computer in the field. A portable REFPROP 9.0 allows you to plug a USB drive into any machine and have instant access to fluid data, eliminating the need to request IT permissions for installation. 2. No Installation Requirements
REFPROP 9.0 is an essential tool for high-stakes engineering. If you need a "portable" version, your best bet is setting up a MATLAB or Python environment on a laptop or using the Excel Add-in for mobile field calculations. in a specific environment like CETDG/21/INF/23 - UNECE
Leaves no residual files or registry keys on the host computer after use.
The full REFPROP 9.0 installer is about 180-220 MB. A "portable" version is often compressed to under 50 MB. Why? Because the cracker strips out the high-accuracy fluid files for refrigerants like R-1234yf, R-32, and complex mixtures. You might get pure water and R-134a, but not the specialized fluids needed for modern low-GWP research.
: Uses high-accuracy Helmholtz energy equations of state for pure fluids and mixtures, often providing results accurate to within 1% for experimental data.
I can provide specific integration code or path-mapping steps based on your needs.
Most engineers do not use the REFPROP GUI in isolation; they connect it to external environments. Maintaining portability during integration requires specific configurations. Microsoft Excel Integration
: Running intensive iterative calculations (like complex flash routines across thousands of data rows) directly off an old USB 2.0 flash drive can bottleneck performance. For heavy workflows, copy the portable folder directly onto the local machine's local C:\Users\Public\ or desktop directory during execution. Conclusion
That's when they stumbled upon RefProp 9.0 Portable, a cutting-edge, NIST-approved thermophysical property database software. The team was impressed by its comprehensive database of over 1,300 pure compounds and 5,400 binary mixtures, as well as its user-friendly interface and portability.
Accurate calculations for viscosity and thermal conductivity, not just pressure-volume-temperature (PVT) data. Troubleshooting Common Portable Issues
: Locate the root installation folder (typically C:\Program Files (x86)\REFPROP or C:\REFPROP ). Copy this entire folder to your target portable storage medium, such as a USB drive or local user-writeable directory.
Using or distributing cracked software is illegal in most jurisdictions. It is a clear violation of copyright law and the software's End User License Agreement (EULA). While individual users are rarely the primary target of major lawsuits from organizations like NIST, the risk of legal action is not zero, especially for commercial use. More significantly, using pirated software in a professional engineering context can expose your employer or client to serious liability and reputational damage.
Q: What are the benefits of using REFPROP 9.0 Portable? A: The benefits of using REFPROP 9.0 Portable include improved accuracy, increased efficiency, convenience, and cost-effectiveness.