摘要
对T型微反应器进行优化设计,可以提高反应器内流体混合程度和反应产物收率,降低操作压力。本研究开发了一个描述T型微反应器流体流动状态的简化模型,通过假设边界条件和假设扩散系数的设定来计算微反应器内反应产物收率。依据此简化模型,本研究提出了一种改进型模拟退火算法,用来设计具有最优尺寸的T型微反应器。优化问题的目标函数是最大反应产物收率,优化约束包括反应通道尺寸约束和操作压力约束。本研究利用gPROMS平台建立T型微反应器简化模型,利用MATLAB平台实现改进型模拟退火算法。在优化求解过程中,通过2个平台计算的相互调用求出最优的T型微反应器。简化模型和改进型模拟退火算法的有效性通过一个平行串联反应在微反应器中的反应过程来验证。优化求解结果和CFD模型验证结果高度一致。
In this research, a simplified model is proposed to efficiently solve the optimal design problems of T-shaped microreactors. In the proposed model, the assuming boundary conditions and an artificial diffusivity are used to calculate the reaction yield distribution in the mixing channel. Meanwhile, based on the simplified model, an improved simulated annealing algorithm is proposed to design an optimal size of T-shaped microreactor with a higher product yield and a lower operation pressure, gPROMS is used to build the simplified model, and MATLAB is used to realize the improved simulated annealing algorithm. The two programs are connected to solve the optimal design problem. The usefulness of the proposed model and the improved simulated annealing algorithm is demonstrated through a consecutive-parallel reaction. The design result shows that the optimal T-shaped microreactor can accurately predict the maximum yield distribution of the product along the mixing channel.
出处
《计算机与应用化学》
CAS
CSCD
北大核心
2013年第10期1193-1196,共4页
Computers and Applied Chemistry
关键词
改进型模拟退火算法
T型微反应器
简化模型
优化设计
improved simulated annealing method
T-shaped microreactors
simplified model
optimal design
