Enhanced heat transfer in channels with staggered fins of different spacings

M. A. Habib; A. M. Mobarak; A. M. Attya; A. Z. Aly

doi:10.1016/0142-727X(93)90027-K

Enhanced heat transfer in channels with staggered fins of different spacings

M. A. Habib^*, A. M. Mobarak, A. M. Attya, A. Z. Aly

^*Corresponding author for this work

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

15 Scopus citations

Abstract

The flow pattern and heat transfer across staggered fins inside a rectangular duct are presented. The influence of Reynolds number, fin spacing, fin material, and wall heat flux on local and average heat transfer coefficients are studied. Fin spacings ranged from 0.8 to 2.0 times the channel height. The fin height was 0.7 times the channel height. The investigated Reynolds number ranged from 8,000 to 18,000. The experimental results show that the flow must pass over three to six fins before it appears to be a thermally periodic, fully developed flow. The fins enhance the heat transfer significantly due to flow deflection and impingement upon the fins. Augmentation of heat transfer was obtained with increase in Reynolds number, thermal conductivity of fins, and decrease in fin spacing and wall heat flux.

Original language	English
Pages (from-to)	185-190
Number of pages	6
Journal	INT. J. HEAT & FLUID FLOW
Volume	14
Issue number	2
DOIs	https://doi.org/10.1016/0142-727X(93)90027-K
State	Published - Jun 1993

Bibliographical note

Funding Information:
The authors would like to acknowledge the support by Cairo University and King Fahd University of Petroleum and Minerals for this research project.

Keywords

flow
heat transfer
staggered fins

ASJC Scopus subject areas

Condensed Matter Physics
Mechanical Engineering
Fluid Flow and Transfer Processes

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10.1016/0142-727X(93)90027-K

Cite this

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title = "Enhanced heat transfer in channels with staggered fins of different spacings",

abstract = "The flow pattern and heat transfer across staggered fins inside a rectangular duct are presented. The influence of Reynolds number, fin spacing, fin material, and wall heat flux on local and average heat transfer coefficients are studied. Fin spacings ranged from 0.8 to 2.0 times the channel height. The fin height was 0.7 times the channel height. The investigated Reynolds number ranged from 8,000 to 18,000. The experimental results show that the flow must pass over three to six fins before it appears to be a thermally periodic, fully developed flow. The fins enhance the heat transfer significantly due to flow deflection and impingement upon the fins. Augmentation of heat transfer was obtained with increase in Reynolds number, thermal conductivity of fins, and decrease in fin spacing and wall heat flux.",

keywords = "flow, heat transfer, staggered fins",

author = "Habib, {M. A.} and Mobarak, {A. M.} and Attya, {A. M.} and Aly, {A. Z.}",

note = "Funding Information: The authors would like to acknowledge the support by Cairo University and King Fahd University of Petroleum and Minerals for this research project.",

year = "1993",

month = jun,

doi = "10.1016/0142-727X(93)90027-K",

language = "English",

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pages = "185--190",

journal = "INT. J. HEAT & FLUID FLOW",

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T1 - Enhanced heat transfer in channels with staggered fins of different spacings

AU - Habib, M. A.

AU - Mobarak, A. M.

AU - Attya, A. M.

AU - Aly, A. Z.

N1 - Funding Information: The authors would like to acknowledge the support by Cairo University and King Fahd University of Petroleum and Minerals for this research project.

PY - 1993/6

Y1 - 1993/6

N2 - The flow pattern and heat transfer across staggered fins inside a rectangular duct are presented. The influence of Reynolds number, fin spacing, fin material, and wall heat flux on local and average heat transfer coefficients are studied. Fin spacings ranged from 0.8 to 2.0 times the channel height. The fin height was 0.7 times the channel height. The investigated Reynolds number ranged from 8,000 to 18,000. The experimental results show that the flow must pass over three to six fins before it appears to be a thermally periodic, fully developed flow. The fins enhance the heat transfer significantly due to flow deflection and impingement upon the fins. Augmentation of heat transfer was obtained with increase in Reynolds number, thermal conductivity of fins, and decrease in fin spacing and wall heat flux.

AB - The flow pattern and heat transfer across staggered fins inside a rectangular duct are presented. The influence of Reynolds number, fin spacing, fin material, and wall heat flux on local and average heat transfer coefficients are studied. Fin spacings ranged from 0.8 to 2.0 times the channel height. The fin height was 0.7 times the channel height. The investigated Reynolds number ranged from 8,000 to 18,000. The experimental results show that the flow must pass over three to six fins before it appears to be a thermally periodic, fully developed flow. The fins enhance the heat transfer significantly due to flow deflection and impingement upon the fins. Augmentation of heat transfer was obtained with increase in Reynolds number, thermal conductivity of fins, and decrease in fin spacing and wall heat flux.

KW - flow

KW - heat transfer

KW - staggered fins

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U2 - 10.1016/0142-727X(93)90027-K

DO - 10.1016/0142-727X(93)90027-K

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JF - INT. J. HEAT & FLUID FLOW

IS - 2

ER -

Enhanced heat transfer in channels with staggered fins of different spacings

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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