一次表面热交换器的优化设计分析  

Optimization Design Analysis of Primary Surface Heat Exchanger

作　　者：刘振宇[1] 程惠尔[1] 杨静[1] 

机构地区：[1]上海交通大学工程热物理研究所,上海200240

出　　处：《上海交通大学学报》2008年第1期117-121,共5页Journal of Shanghai Jiaotong University

基　　金：国家重点基础研究发展规划(973)项目(G199990223030)

摘　　要：根据一次表面热交换器(PSHE)的结构特点和流动传热规律,应用优化理论建立以结构质量、传热系数和压力损失为目标函数,以流道几何尺寸和流速为独立设计变量的PSHE多目标优化设计模型,利用线性加权和法将多目标向量极值问题转化为单目标标量极值问题,编程求解该优化数学模型.算例表明,优化设计分析方法可以避免板片几何尺寸选取的主观因素,获得最优性能的最佳设计.寻优分析有助于获得先进紧凑的一次表面换热器部件和高效的热动、化工联合装置.According to the structure characteristics and flow ＆ heat transfer theory of primary surface heat exchanger （PSHE）, a multi-objective optimization design model was established by optimization theory. The structural mass, heat-transfer coefficient and pressure loss are taken as objective function, and the geometrical sizes of flow channel and flow velocity as design variables. The multi-objective problem is converted to single-objective problem by linear weighting method. The optimization toolbox of popular mathematic software MATLAB is applied to solve the mathematical model of single-objective problem. The result of optimization example shows that the subjective factors can be avoided in choosing corrugated foil geometrical sizes and can obtain the best design of optimum performance under optimization design analysis method. The optimization analysis is of great use to obtain advanced PSHE equipment, power and chemical complex of high economical benefit.

关 键 词：一次表面热交换器 优化设计 线性加权和法 多目标优化理论 

分 类 号：TK124[动力工程及工程热物理—工程热物理]