| Benfild溶液吸收、再生系统的数学模型分析及模拟策略 |
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| 引用本文： | 朱康生,王弘轼,周雅芬,宋维端.Benfild溶液吸收、再生系统的数学模型分析及模拟策略[J].华东理工大学学报(自然科学版),1992(3). |
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| 作者姓名： | 朱康生 王弘轼 周雅芬 宋维端 |
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| 作者单位： | 华东化工学院计算中心
(朱康生，王弘轼，周雅芬)，华东化工学院计算中心(宋维端) |
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| 摘 要： | 根据Benfild溶液吸收、再生系统循环回路及主要单元设备的特点,提出了合并迭代某些系统断裂变量,直至同时收敛的模拟策略。鉴于描述再生过程的微分方程组的边值问题在某些数域内呈严重病态的情况,采用直接搜索法求解相应的非线性方程组,由此避免了离散牛顿法等一类下降型算法对初值及函数光滑性的要求。系统模拟计算中,因采用上述模拟策略可以避免多次计算描述再生塔的边值问题,故整体计算效率优于联立模块法或序贯模块法。
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| 关 键 词： | 吸收 再生 病态问题 流程模拟 模拟策略 边值问题 |
Model Analysis and Flowsheeting Strategy of Absorption and Reproduction Process of Benfild Solution |
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| Zhu Kangsheng,Wang Hongshi,Zhou Yafen Song Weiduan.Model Analysis and Flowsheeting Strategy of Absorption and Reproduction Process of Benfild Solution[J].Journal of East China University of Science and Technology,1992(3). |
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| Authors: | Zhu Kangsheng Wang Hongshi Zhou Yafen Song Weiduan |
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| Institution: | Computer Center |
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| Abstract: | According to the characteristics of the absorption and reproduction process of Benfild solution, a flowsheeting strategy of converging simultaneously some teared variables in system level and output ones in unit level is presented. A direct search approach is used to solve a set of nonlinear equations corresponding to the boundary-value problem describing the reproduction process because of the stiff property of the differential equations in some field. The calculation results show the adopted strategy is more effective than the sequential or simultaneous modular method since it can avoid to calculate repeatedly the boundary-value problem. |
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| Keywords: | absorption reproduction stiff problem flowsheeting simulation strategy boundary-value problem |
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