An estimation of the optimum shape and perforation diameters for pin fin arrays

Cheng-Hung Huang, Min Hong Chen

研究成果: Article

摘要

A pin fin array design problem is studied in the present work using the Levenberg-Marquardt method (LMM) and a commercial package CFD-ACE+ to estimate the optimal shape and perforation diameters of a perforated pin fin array module based on the desired temperature difference between the average temperature of the base plate and ambient temperature (ΔT). In addition to the perforation diameters, in this study, the height and diameter of the pin fin are also considered design variables under a fixed fin volume constraint, and it is determined that a significant improvement in the heat dissipation performance can be achieved. The results of the numerical design cases show that the height of the estimated pin fin becomes shorter, and the diameter of pin fin and perforation become larger than the original design for various cases considered in this work. At an inlet velocity equal to 5.2 m/s, the Nusselt numbers increase from 25.9% to 28.0%, and the average base plate temperatures decrease from 20.2% to 21.5% when compared with the original design of the perforated fin array. Finally, experimental verifications are performed on the fabricated pin fin modules. The measurement results illustrate that the experimental data are in good agreement with the numerical temperature distributions on those pin fin arrays.

原文English
頁(從 - 到)72-84
頁數13
期刊International Journal of Heat and Mass Transfer
DOIs
出版狀態Published - 2019 三月 1

指紋

perforation
fins
Temperature
Nusselt number
Heat losses
modules
Computational fluid dynamics
Temperature distribution
charge flow devices
ambient temperature
temperature
temperature gradients
temperature distribution
cooling

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

引用此文

@article{653c327cde65484ea6926dea6c6681b8,
title = "An estimation of the optimum shape and perforation diameters for pin fin arrays",
abstract = "A pin fin array design problem is studied in the present work using the Levenberg-Marquardt method (LMM) and a commercial package CFD-ACE+ to estimate the optimal shape and perforation diameters of a perforated pin fin array module based on the desired temperature difference between the average temperature of the base plate and ambient temperature (ΔT). In addition to the perforation diameters, in this study, the height and diameter of the pin fin are also considered design variables under a fixed fin volume constraint, and it is determined that a significant improvement in the heat dissipation performance can be achieved. The results of the numerical design cases show that the height of the estimated pin fin becomes shorter, and the diameter of pin fin and perforation become larger than the original design for various cases considered in this work. At an inlet velocity equal to 5.2 m/s, the Nusselt numbers increase from 25.9{\%} to 28.0{\%}, and the average base plate temperatures decrease from 20.2{\%} to 21.5{\%} when compared with the original design of the perforated fin array. Finally, experimental verifications are performed on the fabricated pin fin modules. The measurement results illustrate that the experimental data are in good agreement with the numerical temperature distributions on those pin fin arrays.",
author = "Cheng-Hung Huang and Chen, {Min Hong}",
year = "2019",
month = "3",
day = "1",
doi = "10.1016/j.ijheatmasstransfer.2018.11.019",
language = "English",
pages = "72--84",
journal = "International Journal of Heat and Mass Transfer",
issn = "0017-9310",
publisher = "Elsevier Limited",

}

TY - JOUR

T1 - An estimation of the optimum shape and perforation diameters for pin fin arrays

AU - Huang, Cheng-Hung

AU - Chen, Min Hong

PY - 2019/3/1

Y1 - 2019/3/1

N2 - A pin fin array design problem is studied in the present work using the Levenberg-Marquardt method (LMM) and a commercial package CFD-ACE+ to estimate the optimal shape and perforation diameters of a perforated pin fin array module based on the desired temperature difference between the average temperature of the base plate and ambient temperature (ΔT). In addition to the perforation diameters, in this study, the height and diameter of the pin fin are also considered design variables under a fixed fin volume constraint, and it is determined that a significant improvement in the heat dissipation performance can be achieved. The results of the numerical design cases show that the height of the estimated pin fin becomes shorter, and the diameter of pin fin and perforation become larger than the original design for various cases considered in this work. At an inlet velocity equal to 5.2 m/s, the Nusselt numbers increase from 25.9% to 28.0%, and the average base plate temperatures decrease from 20.2% to 21.5% when compared with the original design of the perforated fin array. Finally, experimental verifications are performed on the fabricated pin fin modules. The measurement results illustrate that the experimental data are in good agreement with the numerical temperature distributions on those pin fin arrays.

AB - A pin fin array design problem is studied in the present work using the Levenberg-Marquardt method (LMM) and a commercial package CFD-ACE+ to estimate the optimal shape and perforation diameters of a perforated pin fin array module based on the desired temperature difference between the average temperature of the base plate and ambient temperature (ΔT). In addition to the perforation diameters, in this study, the height and diameter of the pin fin are also considered design variables under a fixed fin volume constraint, and it is determined that a significant improvement in the heat dissipation performance can be achieved. The results of the numerical design cases show that the height of the estimated pin fin becomes shorter, and the diameter of pin fin and perforation become larger than the original design for various cases considered in this work. At an inlet velocity equal to 5.2 m/s, the Nusselt numbers increase from 25.9% to 28.0%, and the average base plate temperatures decrease from 20.2% to 21.5% when compared with the original design of the perforated fin array. Finally, experimental verifications are performed on the fabricated pin fin modules. The measurement results illustrate that the experimental data are in good agreement with the numerical temperature distributions on those pin fin arrays.

UR - http://www.scopus.com/inward/record.url?scp=85056664438&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85056664438&partnerID=8YFLogxK

U2 - 10.1016/j.ijheatmasstransfer.2018.11.019

DO - 10.1016/j.ijheatmasstransfer.2018.11.019

M3 - Article

SP - 72

EP - 84

JO - International Journal of Heat and Mass Transfer

JF - International Journal of Heat and Mass Transfer

SN - 0017-9310

ER -