MATLAB用于单纯形法寻优拟合气液吸收过程的物理传质系数  

Determination of physical mass transfer coefficient in gas-liquid absorption by using simplex method and MATLAB program

作　　者：海景[1] 程江[2] 王雄[1] 

机构地区：[1]环境保护部华南环境科学研究所,广东广州510655 [2]华南理工大学化学与化工学院,广东广州510640

出　　处：《计算机与应用化学》2012年第2期252-254,共3页Computers and Applied Chemistry

基　　金：国家科技部国际科技合作计划项目(2010DFB94130);国家环保部环保公益性行业科研专项(2011467001)

摘　　要：分别采用线性最小二乘法拟合和单纯形寻优拟合计算氧在水中吸收的物理传质系数。单纯形法是将吸收全过程的溶解氧浓度-时间曲线数据进行拟合,比前者只采用吸收初期的实验数据拟合精度更高,同时可避免浓度-时间数据需符合线性关系的限制。MATLAB软件可快速实现单纯形最优值搜索。The physical mass transfer coefficient（k_La） of oxygen absorption in water is determined by least linear square fitting and Simplex method respectively.The latter may achieve higher accuracy in kla determination and dissolved oxygen concentration simulation than the former,without limitation of linear relation required by the former between the oxygen concentration and absorption time during the initial stage of absorption.The results demonstrate that MATLAB is capable of above simulating in an accurate and high efficiency way.

关 键 词：MATLAB 最小二乘拟合 单纯形法 吸收 物理传质系数 

分 类 号：TQ015.9[化学工程] TP391.9[自动化与计算机技术—计算机应用技术]