Effect of circular perforated pin fin on heat transfer and fluid flow characteristics of rectangular microchannel heat sink

被引：22

作者：

Khan, Mohammad Nawaz ^{[1
]}

Karimi, Munawwar Nawab ^{[1
]}

Qidwai, Mohammad Owais ^{[2
]}

机构：

[1] Jamia Millia Islamia, Dept Mech Engn, New Delhi 110025, India

[2] Delhi Skill & Entrepreneurship Univ, Dept Mech Engn, New Delhi, India

来源：

NUMERICAL HEAT TRANSFER PART A-APPLICATIONS | 2023年 / 83卷 / 06期

关键词：

Microchannel; numerical simulation; perforation; pin fin; thermal performance; PERFORMANCE; HEIGHT;

D O I：

10.1080/10407782.2022.2101809

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In the present work, a numerical analysis has been performed to observe the heat transfer and fluid flow characteristics of the perforated pin fin microchannel heat sink. Six equidistant cylindrical pin fins with circular perforation at the center are entrenched at the base wall of the channel. This perforated pin fin can act as an extended surface and enhanced the heat transfer whereas the circular perforation may reduces the pressure drop and also influence the flow characteristics. The analysis has been done for the single-phase flow with Reynolds number ranges between 150 to 350 and the nondimensional diameter(alpha) of circular perforations considered in this study are 0.33, 0.5, 0.67 and 0.83. It is observed that the Nusslet number improves with the smallest perforation that is alpha = 0.33 and decreases as the diameter of perforation increases however the maximum value of overall thermal performance is associated with the perforation size of 0.5.

引用

页码：594 / 608

页数：15

共 38 条

[1] Thermal performance of open microchannel heat sink with variable pin fin height [J].

Bhandari, Prabhakar ;

Prajapati, Yogesh K. .

INTERNATIONAL JOURNAL OF THERMAL SCIENCES, 2021, 159

[2] A practical implementation of silicon microchannel coolers for high power chips [J].

Colgan, Evan G. ;

Furman, Bruce ;

Gaynes, Michael ;

Graham, Willian S. ;

LaBianca, Nancy C. ;

Magerlein, John H. ;

Polastre, Robert J. ;

Rothwell, Mary Beth ;

Bezama, R. J. ;

Choudhary, Rehan ;

Marston, Kenneth C. ;

Toy, Hilton ;

Wakil, Jamil ;

Zitz, Jeffrey A. ;

Schmidt, Roger R. .

IEEE TRANSACTIONS ON COMPONENTS AND PACKAGING TECHNOLOGIES, 2007, 30 (02) :218-225

[3] Heat Transfer Enhancement in a Microchannel Heat Sink: Nanofluids and/or Micro Pin Fins [J].

Coskun, Turgay ;

Cetkin, Erdal .

HEAT TRANSFER ENGINEERING, 2020, 41 (21) :1818-1828

[4] A Review of High-Heat-Flux Heat Removal Technologies [J].

Ebadian, M. A. ;

Lin, C. X. .

JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 2011, 133 (11)

[5] Effects of geometric parameters of circular pin-fins on fluid flow and heat transfer in an interrupted microchannel heat sink [J].

Feng, Zhenfei ;

Hu, Zhenjun ;

Lan, Yongqi ;

Huang, Zuqiang ;

Zhang, Jinxin .

INTERNATIONAL JOURNAL OF THERMAL SCIENCES, 2021, 165

[6] Effects of Geometry, Spacing, and Number of Pin Fins in Additively Manufactured Microchannel Pin Fin Arrays [J].

Ferster, Katharine K. ;

Kirsch, Kathryn L. ;

Thole, Karen A. .

JOURNAL OF TURBOMACHINERY-TRANSACTIONS OF THE ASME, 2018, 140 (01)

[7] Improving thermal performance of microchannels by combining rectangular pin with chamber [J].

Hassani, S. M. ;

Khoshvaght-Aliabadi, M. ;

Mazloumi, S. H. ;

Rehman, Shafiqur ;

Alimoradi, Ashkan .

APPLIED THERMAL ENGINEERING, 2021, 186

[8] Performance analysis of microchannel with different pin fin layouts [J].

Jadhav, Subhash, V ;

Pawar, Prashant M. .

INTERNATIONAL JOURNAL OF NUMERICAL MODELLING-ELECTRONIC NETWORKS DEVICES AND FIELDS, 2020, 33 (02)

[9] Effect of Pin-Fin Geometry on Microchannel Performance [J].

Jadhav, Subhash, V ;

Pawar, Prashant M. ;

Ronge, Babruvahan P. .

CHEMICAL PRODUCT AND PROCESS MODELING, 2019, 14 (01)

[10] Heat transfer and fluid flow characteristics of combined microchannel with cone-shaped micro pin fins [J].

Jia, Yuting ;

Xia, Guodong ;

Li, Yifan ;

Ma, Dandan ;

Cai, Bo .

INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER, 2018, 92 :78-89

← 1 2 3 4 →