Three-dimensional assessment of thermal-hydraulic behaviour in heat exchangers fitted by wavy annular fins-Reference-Cited by-同舟云学术

Three-dimensional assessment of thermal-hydraulic behaviour in heat exchangers fitted by wavy annular fins

Published:2022 Issue:Spec. issue 1 Volume:26 Page:485-493
ISSN:0354-9836
Container-title:Thermal Science
language:en
Short-container-title:THERM SCI

Author:

Djeffal Fares¹,Tahrour Farouk²,Bordja Lyes¹,Akgul Ali³,Jarrar Rabab⁴,Asad Jihad⁴,Menni Younes⁵

Affiliation:

1. Laboratory of CMASMTF, University of Oum El Bouaghi, Oum El Bouaghi, Algeria

2. Laboratory of Physics and Chemistry of Materials, University of M’Sila, M’Sila, Algeria

3. Department of Computer Science and Mathematics, Lebanese American University, Beirut, Lebanon + Department of Mathematics, Art and Science Faculty, Siirt University, Siirt, Turkey + Mathematics Research Center, Department of Mathematics, Near East University, Nicosia/Mersin, Turkey

4. Department of Physics, Faculty of Applied Science, Palestine Technical University, Kadoorie, Tulkarm, Palestine

5. Department of Technology, University Center Salhi Ahmed Naama (Ctr. Univ. Naama), Naama, Algeria

Abstract

In this study, numerical studies to clarify the influence of wave number and amplitude on thermal-flow behavior of wavy annular finned-and-tube heat exchangers are described. For a range of Reynolds number from 4400 to 14300, the influence of wave amplitude, 1.5 ? A ? 4.5 mm, and wave numbers, 2 ? Nw ? 6, on forced convection heat transfer was examined. It was revealed that the wave amplitude and number have an impact on the heat flux, Colburn factor, and friction factor. The wavy annular-fins with a 3 mm amplitude and Nw = 4 waves obtained the highest values at all Reynolds numbers in terms of the overall performance criterion (j/f1/3).

Publisher

National Library of Serbia

Subject

Renewable Energy, Sustainability and the Environment

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