CO2 冷风机的设计优化.pdf

文档介绍：CO2 冷风机的设计优化

刘斌 1,苏芸 1,蔡景辉 2

(,天津商业大学,300134, (天津)电器有限公司,300402)

摘要介绍了冷风机的设计思路,并采用最优化算法对冷风机的结构参数进行了优化,分别选取
肋片间距、管中心距、管排数、每排管数、传热管外径、换热管单管长度,等作为决策变量,并且
分别选取换热器体积、传热系数作为目标函数,通过两组优化结果的对比表明这两种优化方法均存
在不足,继而采用了兼顾换热器体积、传热系数和空气侧阻力的多目标优化函数,优化结果表明:
经过加权选取的多目标最优化结果总体上最优。最后在优化的基础上对结构敏感性进行了分析计算。
关键词热工学;优化;冷风机;结构参数;
中图分类号: 文献标识码:A

Design and Optimization Methods of CO2 Air Cooler
LiuBin, Sun Yun, Cai Jinhui
1Tianjin Key Lab of Refrigeration Technologies, Tianjin University merce, 300134; Lt. 300134
Abstract The design process of the air cooler used in refrigerated warehouse is introduced in detail and
optimization algorithms are used to optimize the structure of the air cooler. Volume and the heat transfer
coefficient of the heat exchanger are taken as an object function respectively, and fin-pitch, tube distance,
tube rows, row numbers, diameter of heat pipe and the lengths of single pipe are selected as decision
, both the two algorithms are defect and insufficient,according to the results of
optimization,so the multi-objective optimization is introduced and the heat transfer coefficient, volume,
air-side pressure drop are transformed to a single-objective, by give a weight coefficients respectively. The
Optimal result shows that the multi-objective optimization modle is effective. Finally, t