Carbon dioxide, carbon monoxide, sulfur dioxide, ammonia, and water.
REFPROP's accuracy is grounded in its use of the . This explicit formulation in terms of reduced temperature and reduced density consists of an ideal-gas part and a residual part that accounts for real-fluid behavior. Key benefits include:
NIST REFPROP 9 has a wide range of applications across various industries, including:
While Version 9 was a major milestone, it has since been superseded by REFPROP 10 nist refprop 9
: Calculates essential data including density, entropy, enthalpy, and compressibility factors .
: It calculates thermodynamic properties (such as density, enthalpy, and entropy) and transport properties (viscosity and thermal conductivity) for pure fluids and mixtures. Advanced Modeling
VLE (Vapor-Liquid Equilibrium), dew points, bubble points. 4. Direct Interface with Software Key benefits include: NIST REFPROP 9 has a
This article provides an authoritative review of REFPROP 9, covering its core capabilities, licensing, supported fluids, and legacy in engineering thermodynamics.
Standardized mixtures like air, ammonia-water, and various commercial R-numbered refrigerant blends are pre-programmed.
Link directly to the source routines for high-performance computing applications. Legacy Value of Version 9 offering insights into its capabilities
Today, the REFPROP project continues to evolve. Version 10.0 includes a Python-based GUI (in beta) and direct integration with Jupyter notebooks. However, the fundamental algorithms—the same ones perfected in version 9—remain untouched. Therefore, a calculation done in REFPROP 9 in 2015 is still legally and scientifically defensible today.
This article provides a comprehensive overview of NIST REFPROP 9, offering insights into its capabilities, accuracy, and applications, making it a valuable resource for both new users and experienced practitioners.