Second-law analysis on a pin-fin array under crossflow

W. W. Lin; D. J. Lee

doi:10.1016/S0017-9310(96)00240-2

Second-law analysis on a pin-fin array under crossflow

W. W. Lin, D. J. Lee

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

66 Citations (Scopus)

Abstract

Second-law analysis on a pin-fin array under crossflow was conducted, from which the entropy generation rate was evaluated. Increase in the crossflow fluid velocity would enhance the heat transfer rate and hence, reduce the heat transfer irreversibility. Nevertheless, owing to the simultaneous increase in drag force exerting on the fin bodies, the hydrodynamic irreversibility increases as well. An optimal Reynolds number thereby exists over wide operating conditions. Optimal design/operational conditions were searched for on the basis of entropy generation minimized. Comparisons between the staggered and the in-line pin-fin alignments were made in this report. © 1997 Elsevier Science Ltd. All rights reserved.

Original language	English
Pages (from-to)	1937-1945
Journal	International Journal of Heat and Mass Transfer
Volume	40
Issue number	8
DOIs	https://doi.org/10.1016/S0017-9310(96)00240-2
Publication status	Published - May 1997
Externally published	Yes

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Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

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abstract = "Second-law analysis on a pin-fin array under crossflow was conducted, from which the entropy generation rate was evaluated. Increase in the crossflow fluid velocity would enhance the heat transfer rate and hence, reduce the heat transfer irreversibility. Nevertheless, owing to the simultaneous increase in drag force exerting on the fin bodies, the hydrodynamic irreversibility increases as well. An optimal Reynolds number thereby exists over wide operating conditions. Optimal design/operational conditions were searched for on the basis of entropy generation minimized. Comparisons between the staggered and the in-line pin-fin alignments were made in this report. {\textcopyright} 1997 Elsevier Science Ltd. All rights reserved.",

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AU - Lee, D. J.

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N2 - Second-law analysis on a pin-fin array under crossflow was conducted, from which the entropy generation rate was evaluated. Increase in the crossflow fluid velocity would enhance the heat transfer rate and hence, reduce the heat transfer irreversibility. Nevertheless, owing to the simultaneous increase in drag force exerting on the fin bodies, the hydrodynamic irreversibility increases as well. An optimal Reynolds number thereby exists over wide operating conditions. Optimal design/operational conditions were searched for on the basis of entropy generation minimized. Comparisons between the staggered and the in-line pin-fin alignments were made in this report. © 1997 Elsevier Science Ltd. All rights reserved.

AB - Second-law analysis on a pin-fin array under crossflow was conducted, from which the entropy generation rate was evaluated. Increase in the crossflow fluid velocity would enhance the heat transfer rate and hence, reduce the heat transfer irreversibility. Nevertheless, owing to the simultaneous increase in drag force exerting on the fin bodies, the hydrodynamic irreversibility increases as well. An optimal Reynolds number thereby exists over wide operating conditions. Optimal design/operational conditions were searched for on the basis of entropy generation minimized. Comparisons between the staggered and the in-line pin-fin alignments were made in this report. © 1997 Elsevier Science Ltd. All rights reserved.

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DO - 10.1016/S0017-9310(96)00240-2

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SP - 1937

EP - 1945

JO - International Journal of Heat and Mass Transfer

JF - International Journal of Heat and Mass Transfer

IS - 8

ER -

Second-law analysis on a pin-fin array under crossflow

Abstract

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