摘要
分别应用正割法和多点函数迭代法求解BWRS状态方程的密度根.并对多组分精馏塔进行模拟计算.实例计算表明,多点函数迭代法具有收敛速度快和稳定的优点,在精馏塔的计算中,多点函数法比正割法节约机时约26％.
The secant method and multipoint function method can be used to search for the density roots of BWRS state equation of state and applied to distillation calculations. The calculation results showed that the multipoint function method has the advantages of fast convergence and good stability. In the fractionation calculations, the method can save about 26percent of computing time compared with the secant method.
出处
《石油大学学报（自然科学版）》
CSCD
1993年第3期74-77,共4页
Journal of the University of Petroleum,China(Edition of Natural Science)
关键词
状态方程
精馏塔
收敛
密度根
Equation of state: Rectification: Convergence: Computational methods
