NIST Reference Fluid Thermodynamic and Transport Properties Database (REFPROP) Version 10 - SRD 23

REFPROP is an acronym for REFerence fluid PROPerties. This program, developed
by the National Institute of Standards and Technology (NIST), calculates the
thermodynamic and transport properties of industrially important fluids and their
mixtures. These properties can be displayed in Tables and Plots through the graphical
user interface; they are also accessible through spreadsheets or user-written
applications accessing the REFPROP dll. REFPROP is based on the most accurate pure fluid
and mixture models currently available. It implements three models for the thermodynamic
properties of pure fluids: equations of state explicit in Helmholtz energy, the modified
Benedict-Webb-Rubin equation of state, and an extended corresponding states (ECS) model.
Mixture calculations employ a model that applies mixing rules to the Helmholtz energy of
the mixture components; it uses a departure function to account for the departure from
ideal mixing. Viscosity and thermal conductivity are modeled with either fluid-specific
correlations, an ECS method, or in some cases the friction theory method.

REFPROP 是参考流体物性（Reference Fluid Properties）的首字母缩写词。该程序由美国国家标准与技术研究院（National Institute of Standards and Technology，NIST）开发，可计算工业常用流体及其混合物的热力学与输运物性。用户可通过图形用户界面将这些物性参数以表格与图表形式展示；同时也可通过电子表格或调用REFPROP动态链接库（dll）的用户自行编写的应用程序获取相关数据。REFPROP 基于当前已公开的最精准纯流体与混合物物性模型开发，其针对纯流体热力学物性实现了三类计算模型：亥姆霍兹自由能显式状态方程、修正版贝内特-韦伯-鲁宾（Benedict-Webb-Rubin）状态方程，以及扩展对应态（extended corresponding states, ECS）模型。混合物物性计算采用针对混合物组分亥姆霍兹自由能的混合规则模型，并通过偏离函数修正非理想混合带来的偏差。黏度与热导率的建模可选用流体专属关联式、扩展对应态方法，部分场景下还可采用摩擦理论方法。

搜集汇总

背景与挑战

背景概述

NIST REFPROP数据库第10版是一个权威的流体热力学和输运性质数据库，包含147种纯流体、多种混合物及高精度状态方程模型，广泛用于制冷、化工和能源领域。它提供图形界面、Excel集成和源代码，支持多平台计算，并覆盖从自然气体到制冷剂等多种流体类型，确保计算准确性和行业合规性。