基于氨水工质的管壳式冷凝器多目标构形优化  

Multi-objective Constructal Optimization of a Shell-and-tube Condenser With Ammonia-water Working Fluid

作　　者：蔡存光 赵光超 陈林根 冯辉君[3] 肖伟 CAI Cun-Guang;ZHAO Guang-Chao;CHEN Lin-Gen;FENG Hui-Jun;XIAO Wei(Institute of Thermal Science and Power Engineering,Wuhan Institute of Toechnology,Wuhan 430205,China;School of Mechanical&Electrical Engineering,Wuhan Institute of Technology,Wuhan 430205,China;College of Power Engineering,Naval University of Enginecring,Wuhan 430033,China;91827 Troops,Navy Army Weiai 264200,China;91091 Troops,Navy Army,Dalian 116083,China)

机构地区：[1]武汉工程大学热科学与动力工程研究所,武汉430205 [2]武汉工程大学机电工程学院,武汉430205 [3]海军工程大学动力工程学院,武汉430033 [4]海军91827部队,威海264200 [5]海军91091部队,大连116083

出　　处：《工程热物理学报》2020年第9期2253-2258,共6页Journal of Engineering Thermophysics

基　　金：国家重点研发计划项目(No.2017YFB0603503);国家自然科学基金(No.51779262);海军工程大学自主立项科研项目(No.425317Q017)。

摘　　要：应用构形理论,以换热过程[火积]耗散率和总泵功率组成的线性加权复合函数为优化目标,首先在总换热率和换热面积一定的条件下,对基于氨水工质的管壳式冷凝器进行构形优化,得到一次最小复合函数以及对应的一次最佳换热管外径,并进一步分析氨水浓度、冷却水进口温度、冷凝器换热面积和总换热率对一次构形优化结果的影响。On the basis of constructal theory,constructal optimization of a shell-and-tube condenser with ammonia-water working fluid is conducted in this paper.A complex function composed of linear weighted sum of entransy dissipation rate in heat transfer process and total pumping power is taken as optimization objective.Firstly,taking the total heat transfer rate and heat transfer area.of the tubes as the constraints,the complex function is primarily minimized,and the corresponding optimal external diameter of the heat transfer tube is obtained.Then the effects of the ammonia concentration,inlet temperature of cooling water,heat transfer area and total heat transfer rate on the primary constructal design results are analyzed.

关 键 词：构形理论 氨水工质 管壳式冷凝器 多目标优化 广义热力学优化 

分 类 号：TK12[动力工程及工程热物理—工程热物理]