Effect of a delta-winglet vortex pair on the performance of a tube-fin heat exchanger

被引：73
|
作者：
Allison, C. B. [1 ]
Dally, B. B. [1 ]
机构：
[1] Univ Adelaide, Sch Mech Engn, Adelaide, SA 5005, Australia
来源：
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2007年 / 50卷 / 25-26期
关键词：
compact tube-fin heat exchanger; delta-winglet vortex generator;
D O I：
10.1016/j.ijheatmasstransfer.2007.08.003
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The experimental analysis of the effects of delta-winglet vortex generators on the performance of a fin and tube radiator is presented. The winglets were arranged in flow-up configuration, and placed directly upstream of the tube. This is a hitherto untested configuration, but is thought to have certain advantages. In addition to vortex generation the flow is guided onto the tube surface increasing the localised velocity gradients and Nusselt numbers in this region. The study includes dye visualisation and full scale heat transfer performance measurements. The results are compared to a standard louvre fin surface. It was found that the winglet surface had 87% of the heat transfer capacity but only 53% of the pressure drop of the louvre fin surface. (c) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码：5065 / 5072
页数：8
相关论文
共 50 条
  • [31] Effect of elliptical winglet on the air-side performance of fin-and-tube heat exchanger
    Chimres, Nares
    Wang, Chi-Chuan
    Wongwises, Somchai
    INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2018, 123 : 583 - 599
  • [32] Performance enhancement of high temperature fin-and-tube heat exchanger employing winglet combined vortex generators
    Tian, Zhen
    Zhang, Yaning
    Xiong, Xiaojun
    Gou, Guangming
    Wu, Yipeng
    APPLIED THERMAL ENGINEERING, 2024, 249
  • [33] Pareto optimization of heat transfer enhancement of finned-tube heat exchangers with delta-winglet vortex generators
    Lemouedda, A.
    Breuer, M.
    Franz, E.
    TURBULENCE, HEAT AND MASS TRANSFER 6, 2009, : 1015 - 1018
  • [34] OPTIMIZATION OF THE ANGLE OF ATTACK OF DELTA-WINGLET VORTEX GENERATORS VERA BANK OF ELLIPTICAL-TUBES HEAT EXCHANGER
    Godazandeh, K.
    Ansari, M. H.
    Godazandeh, B.
    Ashjaee, M.
    PROCEEDINGS OF THE ASME INTERNATIONAL MECHANICAL ENGINEERING CONGRESS AND EXPOSITION, 2013, VOL 8A, 2014,
  • [35] Numerical investigations on enhancement of heat transfer in a compact fin-and-tube heat exchanger using delta winglet type vortex generators
    Jahromi, AAB
    Mitra, NK
    Biswas, G
    JOURNAL OF ENHANCED HEAT TRANSFER, 1999, 6 (01) : 1 - 11
  • [36] Thermal enhancement by using grooves and ribs combined with delta-winglet vortex generator in a solar receiver heat exchanger
    Luo, Lei
    Wen, Fengbo
    Wang, Lei
    Sunden, Bengt
    Wang, Songtao
    APPLIED ENERGY, 2016, 183 : 1317 - 1332
  • [37] Performance enhancement of fin and tube heat exchanger employing curved trapezoidal winglet vortex generator with circular punched holes
    Saini, Prashant
    Dhar, Atul
    Powar, Satvasheel
    INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2023, 209
  • [38] Numerical investigation towards implementation of punched winglet as vortex generator for performance improvement of a fin-and-tube heat exchanger
    Gupta, Arvind
    Roy, Aditya
    Gupta, Sachin
    Gupta, Munish
    INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2020, 149 (149)
  • [39] Experimental study on hydraulic expansion of tube-fin heat exchanger
    Han, Junjie
    Yang, Lianfa
    Huang, Jinjie
    Jiang, Jingyu
    He, Yulin
    2ND INTERNATIONAL CONFERENCE ON MECHANICAL ENGINEERING AND APPLIED COMPOSITE MATERIALS, 2019, 544
  • [40] Impact of Blockage Ratio on Thermal Performance of Delta-Winglet Vortex Generators
    Yaningsih, Indri
    Wijayanta, Agung Tri
    Miyazaki, Takahiko
    Koyama, Shigeru
    APPLIED SCIENCES-BASEL, 2018, 8 (02):
12345