Localized flow and heat transfer interactions in louvered-fin arrays

N. C. DeJong; A. M. Jacobi

doi:10.1016/S0017-9310(02)00292-2

Localized flow and heat transfer interactions in louvered-fin arrays

N. C. DeJong, A. M. Jacobi

Mechanical Science and Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

A detailed study of flow, heat transfer, and pressure drop for louvered fins is presented. Louver-by-louver mass transfer data are acquired for Reynolds numbers from 130 to 1400. Pressure-drop data are obtained using a low-speed wind tunnel and local flow structures are visualized using dye injection in a water tunnel. Particular attention is placed on the role of vortex shedding in heat transfer enhancement. In contrast to recent studies for similar offset-strip arrays, vortex shedding is found to have less impact in louvered-fin arrays. Several practical implications for heat exchanger design and analysis are discussed.

Original language	English (US)
Pages (from-to)	443-455
Number of pages	13
Journal	International Journal of Heat and Mass Transfer
Volume	46
Issue number	3
DOIs	https://doi.org/10.1016/S0017-9310(02)00292-2
State	Published - Jan 2003

Keywords

Convective heat transfer
Heat exchangers

ASJC Scopus subject areas

Condensed Matter Physics
Mechanical Engineering
Fluid Flow and Transfer Processes

Online availability

10.1016/S0017-9310(02)00292-2

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title = "Localized flow and heat transfer interactions in louvered-fin arrays",

abstract = "A detailed study of flow, heat transfer, and pressure drop for louvered fins is presented. Louver-by-louver mass transfer data are acquired for Reynolds numbers from 130 to 1400. Pressure-drop data are obtained using a low-speed wind tunnel and local flow structures are visualized using dye injection in a water tunnel. Particular attention is placed on the role of vortex shedding in heat transfer enhancement. In contrast to recent studies for similar offset-strip arrays, vortex shedding is found to have less impact in louvered-fin arrays. Several practical implications for heat exchanger design and analysis are discussed.",

keywords = "Convective heat transfer, Heat exchangers",

author = "DeJong, {N. C.} and Jacobi, {A. M.}",

note = "Funding Information: The authors gratefully acknowledge the financial support of the ACRC, an industry–university cooperative research center, founded by the NSF in 1989.",

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doi = "10.1016/S0017-9310(02)00292-2",

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AU - DeJong, N. C.

AU - Jacobi, A. M.

N1 - Funding Information: The authors gratefully acknowledge the financial support of the ACRC, an industry–university cooperative research center, founded by the NSF in 1989.

PY - 2003/1

Y1 - 2003/1

N2 - A detailed study of flow, heat transfer, and pressure drop for louvered fins is presented. Louver-by-louver mass transfer data are acquired for Reynolds numbers from 130 to 1400. Pressure-drop data are obtained using a low-speed wind tunnel and local flow structures are visualized using dye injection in a water tunnel. Particular attention is placed on the role of vortex shedding in heat transfer enhancement. In contrast to recent studies for similar offset-strip arrays, vortex shedding is found to have less impact in louvered-fin arrays. Several practical implications for heat exchanger design and analysis are discussed.

AB - A detailed study of flow, heat transfer, and pressure drop for louvered fins is presented. Louver-by-louver mass transfer data are acquired for Reynolds numbers from 130 to 1400. Pressure-drop data are obtained using a low-speed wind tunnel and local flow structures are visualized using dye injection in a water tunnel. Particular attention is placed on the role of vortex shedding in heat transfer enhancement. In contrast to recent studies for similar offset-strip arrays, vortex shedding is found to have less impact in louvered-fin arrays. Several practical implications for heat exchanger design and analysis are discussed.

KW - Convective heat transfer

KW - Heat exchangers

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JO - International Journal of Heat and Mass Transfer

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ER -

Localized flow and heat transfer interactions in louvered-fin arrays

Abstract

Keywords

ASJC Scopus subject areas

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