Heat Transfer Characteristics for Natural Convection through Inline and Staggered Horizontal Banks of Tubes
| Autor: | Abdelfatah Abdelmaksoud, Hesham Elbakhshawangy |
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| Jazyk: | angličtina |
| Rok vydání: | 2023 |
| Předmět: | |
| ISSN: | 2394-9678 |
| DOI: | 10.5281/zenodo.7547533 |
| Popis: | In the present study, heat transfer characteristics of natural convection of air through 7x7 horizontal bank of tubes of 1cm diameter are studied numerically using Ansys-Fluent CFD code. Both the inline and staggered arrangements are considered. The study is carried out under constant heat generation in the tubes. The study is carried out at different spaces between the tubes in both the horizontal (longitudinal) and vertical (transverse) directions. The results of thermal and flow fields are obtained for each case. The effect of the longitudinal and transverse distances, SL and ST respectively, between the tubes on heat transfer is obtained for both the cases of inline and staggered arrangements. The studied range of both SL and ST is 1.2 to 4 cm. The results show that the heat transfer rate increases and the temperature decreases as a result of increasing the distance between the tubes in both the longitudinal and transverse directions. The effect of the longitudinal distance between the tubes on heat transfer is more pronounced than the corresponding effect of the transverse distance. Staggered arrangement has better heat transfer characteristics than the inline arrangement. Two correlations relating Nusselt number with tube spacing, one for the inline arrangement and the other for the staggered, were derived from the present results. Ideal tube spacing for the studied range of SL and ST was determined for the two arrangements. Keywords: Heat transfer, horizontal tube bank, inline and staggered. Title: Heat Transfer Characteristics for Natural Convection through Inline and Staggered Horizontal Banks of Tubes Author: Abdelfatah Abdelmaksoud, Hesham Elbakhshawangy International Journal of Novel Research in Electrical and Mechanical Engineering ISSN 2394-9678 Vol. 10, Issue 1, September 2022 - August 2023 Page No: 39-53 Novelty Journals Website: www.noveltyjournals.com Published Date: 18-January-2023 DOI: https://doi.org/10.5281/zenodo.7547534 Paper Download Link (Source) https://www.noveltyjournals.com/upload/paper/Heat%20Transfer%20Characteristics-18012023-2.pdf International Journal of Novel Research in Electrical and Mechanical Engineering, ISSN 2394-9678, Novelty Journals, Website: www.noveltyjournals.com |
| Databáze: | OpenAIRE |
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