Performance optimization of a wavy finned-tube heat exchanger with staggered curved vortex generators

被引：59
作者：
Hu, DongLiang [1 ]
Zhang, Qiang [1 ]
Song, KeWei [1 ]
Gao, Chen [1 ]
Zhang, Kun [1 ]
Su, Mei [1 ]
Wang, LiangBi [1 ]
机构：
[1] Lanzhou Jiaotong Univ, Sch Mech Engn, Key Lab Railway Vehicle Thermal Engn MOE, Lanzhou 730070, Peoples R China
来源：
INTERNATIONAL JOURNAL OF THERMAL SCIENCES | 2023年 / 183卷
基金：
中国国家自然科学基金;
关键词：
Wavy fin; Concave curved vortex generator; Optimal arrangement; Artificial neural network; Pareto optimal strategy; AIR-SIDE PERFORMANCE; TRANSFER ENHANCEMENT; DELTA WINGLETS; BANK FIN; CHANNEL; DIAMETER; LAMINAR; PLAIN; PITCH; FLOW;
D O I：
10.1016/j.ijthermalsci.2022.107830
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A novel configuration of staggered concave curved vortex generators is proposed for thermal performance enhancement in a wavy finned-tube heat exchanger. The change of transverse location of the couple of concave curved vortex generators is out of synchronous. The effect of different transverse locations of the concave curved vortex generators on the thermal performance is numerically reported. Results showed that the stagger-arranged concave curved vortex generators can generate counter-rotated longitudinal vortices and enhance the heat transfer. Compared with the wavy smooth channel and the wavy channel with plane vortex generators, the overall performance of the wavy channel with concave curved vortex generators is greatly improved. Nusselt number and the thermal performance factor of the proposed vortex generator arrangement can increase by 30.4% and 25.9%, respectively. Optimization of the vortex generator arrangement is carried out using a multi -objective genetic algorithm and neural network. The optimal transverse distances are calculated using the Pareto optimal strategy. The heat transfer power Qv can increase by 34.6% under the same pump power Pv. Correlations of Nu, f, and the optimal Qv and Pv are presented for engineering applications.
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页数：11
相关论文
共 45 条
[1]   Optimization of heat transfer enhancement of nanofluid in a channel with winglet vortex generator [J].
Abdollahi, Azita ;
Shams, Mehrzad .
APPLIED THERMAL ENGINEERING, 2015, 91 :1116-1126
[2]   Optimization of shape and angle of attack of winglet vortex generator in a rectangular channel for heat transfer enhancement [J].
Abdollahi, Azita ;
Shams, Mehrzad .
APPLIED THERMAL ENGINEERING, 2015, 81 :376-387
[3]  
[Anonymous], MATLAB R2018B HELP
[4]   Numerical investigation for finding the appropriate design parameters of a fin-and-tube heat exchanger with delta-winglet vortex generators [J].
Behfard, M. ;
Sohankar, A. .
HEAT AND MASS TRANSFER, 2016, 52 (01) :21-37
[5]   Modeling and Pareto based multi-objective optimization of wavy fin-and-elliptical tube heat exchangers using CFD and NSGA-II algorithm [J].
Damavandi, Mohammad Darvish ;
Forouzanmehr, Mostafa ;
Safikhani, Hamed .
APPLIED THERMAL ENGINEERING, 2017, 111 :325-339
[6]   HEAT-TRANSFER ENHANCEMENT AND DRAG BY LONGITUDINAL VORTEX GENERATORS IN CHANNEL FLOW [J].
FIEBIG, M ;
KALLWEIT, P ;
MITRA, N ;
TIGGELBECK, S .
EXPERIMENTAL THERMAL AND FLUID SCIENCE, 1991, 4 (01) :103-114
[7]   Heat transfer enhancement by winglet-type vortex generator arrays in compact plain-fin-and-tube heat exchangers [J].
Joardar, A. ;
Jacobi, A. M. .
INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID, 2008, 31 (01) :87-97
[8]  
Kays W.M., 1984, COMPACT HEAT EXCHANG, V3rd
[9]   Thermal-hydraulic performance and optimization of attack angle of delta winglets in plain and wavy finned-tube heat exchangers [J].
Ke, Hanbing ;
Khan, Tariq Amin ;
Li, Wei ;
Lin, Yusheng ;
Ke, Zhiwu ;
Zhu, Hua ;
Zhang, Zhengjiang .
APPLIED THERMAL ENGINEERING, 2019, 150 :1054-1065
[10]   Optimization of the angle of attack of delta-winglet vortex generators in a plate-fin-and-tube heat exchanger [J].
Lemouedda, A. ;
Breuer, M. ;
Franz, E. ;
Botsch, T. ;
Delgado, A. .
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2010, 53 (23-24) :5386-5399
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