基于Excel运用BWRS方程计算汽液平衡热力学性质∗

摘要

The saturated vapor pressure was calculated for pure fluids, due to the combined solution BWRS equation of state for higher order nonlinear equation, the process involved multiple iterations root and other forms of computing more complicated. Using Excel convenient calculation function, with simple design, the basic physical properties of the fluid were input in form, the relevant thermodynamic properties of pure liquid-vapor equilibrium can easily be found.%对于纯流体饱和蒸汽压的计算，由于所联解的BWRS状态方程为高次非线性方程，计算流程涉及多次迭代求根等形式，计算较为繁琐的。而利用Excel便捷的计算功能，通过简单的设计，把流体基本物性数据输入表格中，即可方便求出纯流体汽液平衡相关的热力学性质。