Influence of curved trapezoidal winglet vortex generators on thermal- hydraulic performance in fin-and-tube heat exchangers

被引:0
作者
Gonul, Alisan [1 ]
机构
[1] Siirt Univ, Dept Mech Engn, TR-56100 Siirt, Turkiye
来源
JOURNAL OF THERMAL ENGINEERING | 2025年 / 11卷 / 02期
关键词
Curved Trapezoidal Winglet Vortex Generators; Heat Transfer Enhancement; Response Surface Methodology; RESPONSE-SURFACE METHODOLOGY; FLUID-FLOW ANALYSIS; PLATE-FIN; TRANSFER ENHANCEMENT; LONGITUDINAL VORTICES;
D O I
10.14744/thermal.0000929
中图分类号
O414.1 [热力学];
学科分类号
摘要
Fin-tube heat exchangers play a crucial role in various industrial and HVAC applications due to their high heat transfer efficiency. This study focuses on the numerical analysis of fin-tube heat exchangers integrated with curved trapezoidal winglet vortex generators. In the current work, the impact of three key factors on heat transfer and flow characteristics: inlet velocity (2-5 m/s), vortex generator position angle (45 degrees-120 degrees), and arc length (3.80-6.33 mm) is analyzed. To enhance the accuracy of output predictions, this research extends beyond conventional parametric studies by utilizing a structured design of experiments approach. The study determines the optimal configurations through Kriging response surface methodology analysis. Results indicate a potential 48.5% improvement in heat transfer and up to an 18.3% enhancement in thermo-hydraulic performance. Moreover, the study reveals that improper sizing and positioning of vortex generators may lead to a 5% decrease in thermo-hydraulic performance compared to the heat exchanger without vortex generators. This work aims to explore strategies for enhancing the thermal performance of fin-and-tube heat exchangers through novel vortex generator designs by considering their geometric dimensions and positioning.
引用
收藏
页码:493 / 507
页数:15
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