![]() ![]() ![]() Demonstration of models for complex fluids: Complex fluids used in aircraft and transport fuels have a complex composition consisting of hundreds or thousands of types of chemical compounds. While the properties of complex fuels are displayed by very small combinations.Natural gas: The REFPROP program has the standards used in the gas industry, and in addition, the researchers of this program have been involved in improving the display of compounds in natural gas.Low GWP Fluids: NIST members play an active role in calculating and developing the physical-thermal properties of low-GWP fluids, and these results have been achieved in a global collaboration.REFPROP disseminates international standards in both the natural gas and refrigeration industries, as well as standards for water/steam.REFPROP stands for Reference Fluid Thermodynamic and Transport Properties. Is a specialized engineering application database developed by NIST that provides the most accurate physical thermal models for a wide range of major industry applications. This tool has proven itself as a very useful tool for industry, government and the scientific community. This program is also the main method for distributing the work done by the Thermophysical features of the fluid group. Properties can also be accessed through third-party apps or user-written code via the core property subroutines compiled into a shared library. A graphical user interface generates tables and provides extensive plotting capabilities. We document the models for the 147 fluids included in the current version. The equations of state for thermodynamic properties are primarily of the Helmholtz energy form a variety of models are implemented for the transport properties. REFPROP implements the most accurate models available for selected pure fluids and their mixtures that are valid over the entire fluid range including gas, liquid, and supercritical states, with the goal of uncertainties approaching the level of the underlying experimental data. The NIST REFPROP software program is a powerful tool for calculating thermophysical properties of industrially important fluids, and this manuscript describes the models implemented in, and features of, this software. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |