摘要
通过对换热网络的研究发现,当物流有分流时,换热网络分析的数学模型为非线性规划问题。本文给出换热网络分析的非线性规划模型,同时优化各路分流的流量及换热单元进出口温度。经模型转化,用复合形法与线性规划法的双层组合求解,成功地解决了换热网络分析中非线性规划的求解问题。经实例考核计算证明,本文所建立的数学模型是正确可靠的,使用的双层组合法与其它方法相比,方法简单实用,结果准确,可在工程研J究、设计中应用,分析后所得的最佳参数可大大提高换热网络的热回收量,节能效益十分显著。
When the streams are split,the mathematical model in the analysis of heat exchanger network is non-linear programming.Inthis paper,the mathematical model of non-linear programming for optimal analysis of heat exchanger network is set up.Through conver-sion of the model,the double layer combination of complex method and linear programming method is used to solve successfully the non-linear programming problem of the heat exchanger network analysis.The practical examples showed that the mathematical model isexact.Compared with other methods,the double layer combination method is simple and practical and can be applied to the improve-ment of heat exchanger networks with remarkable economic benefit.
出处
《计算机与应用化学》
CAS
CSCD
北大核心
2004年第1期135-140,共6页
Computers and Applied Chemistry
