NDLI: Numerical Analysis of Fluid Flow and Heat Transfer in Wavy and Hybrid-Slit-Wavy Fin-and-Tube Heat Exchangers

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Numerical Analysis of Fluid Flow and Heat Transfer in Wavy and Hybrid-Slit-Wavy Fin-and-Tube Heat Exchangers

Content Provider	Scilit
Author	Mohanta, Lokanath Joardar, Arindom Esformes, Jack L. Videto, Brian Sienel, Tobias H.
Copyright Year	2019
Description	Journal: Science and Technology for the Built Environment This numerical study pertains to characterizing flow and heat transfer interactions for an interrupted fin design with wavy profile in compact tube-and-fin heat exchanger. Sinusoidal wavy fin is combined with slit fins to investigate thermal-hydraulic performance relative to an un-interrupted fin design. This fin is referred to as Hybrid Slit Wavy (HSW) fin in this work. Commercial Computational Fluid Dynamics (CFD) software is used for 3D numerical solution of the complete Navier–Stokes and energy equations in the heat exchanger to study flow physics and predict performance. The modeling approach is first validated with available test data from the literature on a wavy (Herringbone profile) fin heat exchanger. The predicted friction factor $f was within 12% and the Colburn j-factor was within 7% of the reported test data over a Reynolds number range of 350-6500. In the case of the HSW fin it was found that the air-side heat transfer is enhanced by about 20-39% relative to the baseline un-interrupted fin with an associated pressure drop penalty of 20-38%. The area goodness factors of the HSW fins are up to 4 % higher compared to the wavy fins at various operating conditions indicative of favorable trade-off.$
Related Links	https://docs.lib.purdue.edu/cgi/viewcontent.cgi?article=3046&context=iracc
Ending Page	775
Page Count	9
Starting Page	767
ISSN	23744731
e-ISSN	2374474X
DOI	10.1080/23744731.2019.1600333
Journal	Science and Technology for the Built Environment
Issue Number	6
Volume Number	25
Language	English
Publisher	Informa UK Limited
Publisher Date	2019-07-03
Access Restriction	Open
Subject Keyword	Journal: Science and Technology for the Built Environment Marine Engineering Hybrid-slit-wavy Fin Plate Fin Heat Exchanger Cfd Analysis
Content Type	Text
Subject	Building and Construction Fluid Flow and Transfer Processes Environmental Engineering

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