Publication de 8 numéros par an
ISSN Imprimer: 1065-5131
ISSN En ligne: 1563-5074
IF:
2.3
5-Year IF:
1.8
Immediacy Index:
0.2
Eigenfactor:
0.00037
JCI:
0.6
SJR:
0.433
SNIP:
0.593
CiteScore™::
4.3
H-Index:
35
Indexed in
COMPACT HEAT EXCHANGERS: VORTEX GENERATORS
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RÉSUMÉ
Compact heat exchangers are characterized by high heat duties per unit volume and high heat transfer coefficients. This implies small hydraulic diameters, low Reynolds numbers and fins. Emphasis is placed on wing-type vortex generators (WVG). They can be used as fins or to modify fins and are easily incorporated into heat exchangers. Different WVGs are evaluated experimentally and numerically with regard to heat transfer enhancement and pressure loss. Detailed data are presented for flow structure, local and global heat transfer and pressure losses. The high potential of WVGs for compact heat exchangers is shown. Comparison of WVG-fins with offset-strip fins and louvered fins shows the advantages of WVGs. Examples of fin-tube heat exchanger elements indicate the large saving potential inherent in WVGs. Because of the many geometrical parameters of WVGs, many possibilities for improvements and incorporation into heat exchangers exist. Examples of fin-tube and fin-plate heat exchanger elements with and without WVGs are given.
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Saha Sujoy Kumar, Ranjan Hrishiraj, Emani Madhu Sruthi, Bharti Anand Kumar, Active and Passive Techniques: Their Applications, in Introduction to Enhanced Heat Transfer, 2020. Crossref
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Zheng Nianben, Yan Fang, Zhang Kang, Zhou Tian, Sun Zhiqiang, A review on single-phase convective heat transfer enhancement based on multi-longitudinal vortices in heat exchanger tubes, Applied Thermal Engineering, 164, 2020. Crossref
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Saha Sujoy Kumar, Ranjan Hrishiraj, Emani Madhu Sruthi, Bharti Anand Kumar, Additives for Gases and Liquids, in Electric Fields, Additives and Simultaneous Heat and Mass Transfer in Heat Transfer Enhancement, 2020. Crossref
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Sun Zhiqiang, Chen Qiang, Zheng Nianben, Experimental and numerical studies of intensified turbulent heat transfer in round pipes with curved wing vortex generators, International Journal of Heat and Mass Transfer, 180, 2021. Crossref
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Zheng Nianben, Zhang Kang, Chen Qiang, Sun Zhiqiang, Novel self-join winglet vortex generators for enhanced heat transfer of turbulent airflow in round tubes, International Communications in Heat and Mass Transfer, 130, 2022. Crossref