Constructal design of printed circuit recuperator for S-CO_(2)cycle via multi-objective optimization algorithm  

作　　者：DAN ZhiSong FENG HuiJun CHEN LinGen LIAO NaiBing GE YanLin 

机构地区：[1]Institute of Thermal Science and Power Engineering,Wuhan Institute of Technology,Wuhan 430205,China [2]College of Power Engineering,Naval University of Engineering,Wuhan 430033,China [3]Hubei Provincial Engineering Technology Research Center of Green Chemical Equipment,Wuhan 430205,China [4]School of Mechanical&Electrical Engineering,Wuhan Institute of Technology,Wuhan 430205,China [5]AECC Hunan Aviation Powerplant Research Institute,Zhuzhou 412002,China

出　　处：《Science China(Technological Sciences)》2024年第1期285-294,共10页中国科学（技术科学英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.52171317 and 51779262).

摘　　要：Based on a constructal theory,the structure design of a printed circuit recuperator with a semicircular heat transfer channel for supercritical CO_(2)cycle is carried out.First,a complex function composed of weighted sum of the reciprocal of total heat transfer rate and total pumping power consumption is regarded as an optimization objective,and total volumes of the recuperator and heat transfer channel are regarded as constraints.The optimal heat transfer channel radius and minimum complex function of the recuperator are obtained.It turns out that heat transfer rate,pumping power consumption,and complex function under the optimal construct of recuperator are reduced by 15.10%,82.44%,and 32.33%,respectively.There exists the optimal single plate channel number which results in the double minimum complex function.Second,for the purpose of minimizing the reciprocal of heat transfer rate and pumping power consumption,NSGA-II algorithm is used to achieve multi-objective optimization,and the minimum deviation index derived by the decision-making methods is 0.076,which can be taken as multi-objective optimal design scheme for printed circuit recuperator with semicircular heat transfer channels.The findings presented here can serve as theoretical recommendations for the structure design of printed circuit recuperator.

关 键 词：constructal theory supercritical CO_(2)cycle printed circuit heat exchanger heat transfer rate pumping power consumption multi-objective optimization 

分 类 号：TK172[动力工程及工程热物理—热能工程] TP18[自动化与计算机技术—控制理论与控制工程]