| 用多参数状态方程求解汽液平衡的数值方法 |
| |
| 引用本文： | 汤定国. 用多参数状态方程求解汽液平衡的数值方法[J]. 中国石油大学学报(自然科学版), 1987, 0(3) |
| |
| 作者姓名： | 汤定国 |
| |
| 作者单位： | 华东石油学院化工热力学教研室 |
| |
| 摘 要： | 本文以BWR 方程为例,建立了用多参数状态方程计算汽液平衡的非线性方程组,讨论了Newton-Raphson 法解该非线性方程组的收敛性,提出了将非线性方程组构造成适应最优化方法的目标函数。用不求导数的单纯形搜索法求解BWR状态方程所表达的汽液平衡,可以有效地解决多极值问题引起的困难。
|
| 关 键 词： | 汽液平衡 非线性方程 数值分析 状态方程 最优化方法 |
NUMERICAL METHOD IN SOLVING EQUATION OF STATE FOR VAPOR LIQUID EQUILIBRIUM |
| |
| Tang Dingguo. NUMERICAL METHOD IN SOLVING EQUATION OF STATE FOR VAPOR LIQUID EQUILIBRIUM[J]. Journal of China University of Petroleum (Edition of Natural Sciences), 1987, 0(3) |
| |
| Authors: | Tang Dingguo |
| |
| Affiliation: | Tang Dingguo |
| |
| Abstract: | Nonlinear coupled equations were established to calculate vapor-liquid equilibrium of some hydrocarbon by means of BWR equation. The convergence of Newton-Raphson method to solve the nonlinear equations was discussed. In order to solve the difficulty out of multi-extreme values, it is suggested that a objective function which is suitable for optimization be set-up from the nonlinear equations.With the aid of simplex seek rather than derivative method, the vapor-liquid equilibrium expressed by the objective function will be consequently solved. |
| |
| Keywords: | Vapor liquid equilibrium Non-linear equations Numerical analysis Equation of states Optimization methods |
| 本文献已被 CNKI 等数据库收录！ |
