Hydrothermal Performance Maximisation and Entropy Generation Minimisation of Different Perforated Pinned Heat Sink Designs for Electronic CoolingSource: Journal of Heat Transfer:;2022:;volume( 144 ):;issue: 011::page 114502DOI: 10.1115/1.4055243Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: To quantify the benefits of reducing entropy production and improving hydrothermal performance with varied thermal air characteristics through different perforated heat sinks, a numerical study was conducted. Various numbers of circular perforations are studied from 0 perforations to 5 perforations. In addition, perforation configuration is considered, such as circular (3CP), square (3SP), elliptic (3EP), and triangular (3TP) perforated pinned heat sinks, as well as three slotted pinned heat sinks (SPHSs) (3S, 6S, and 10S) and four notched pinned heat sinks (NPHSs) (3S, 6S, and 10S) (2.5 N, 5 N, 7.5 N, and 10 N). The numerical results showed that the 5-circular perforations heat sink model (5CP) generates the minimum entropy generation and the maximum hydrothermal performance (HTP), around 17% and 1.2, respectively compared to the zero-perforation model, while the circular perforated pinned heat sink (3CP) model produces the maximum reduction in entropy generation, generally around 13% with moderated HTP of 1.1. Moreover, when comparing slotted and notched pinned heat sinks, the 10S slotted and 10 N notched pinned heat sinks achieve 1.45 of HTP.
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contributor author | Khalil, Wissam H.;Azzawi, Itimad D. J.;Al-Damook, Amer;Alkasmoul, Fahad S. | |
date accessioned | 2022-12-27T23:12:03Z | |
date available | 2022-12-27T23:12:03Z | |
date copyright | 9/8/2022 12:00:00 AM | |
date issued | 2022 | |
identifier issn | 0022-1481 | |
identifier other | ht_144_11_114502.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl1/handle/yetl/4288092 | |
description abstract | To quantify the benefits of reducing entropy production and improving hydrothermal performance with varied thermal air characteristics through different perforated heat sinks, a numerical study was conducted. Various numbers of circular perforations are studied from 0 perforations to 5 perforations. In addition, perforation configuration is considered, such as circular (3CP), square (3SP), elliptic (3EP), and triangular (3TP) perforated pinned heat sinks, as well as three slotted pinned heat sinks (SPHSs) (3S, 6S, and 10S) and four notched pinned heat sinks (NPHSs) (3S, 6S, and 10S) (2.5 N, 5 N, 7.5 N, and 10 N). The numerical results showed that the 5-circular perforations heat sink model (5CP) generates the minimum entropy generation and the maximum hydrothermal performance (HTP), around 17% and 1.2, respectively compared to the zero-perforation model, while the circular perforated pinned heat sink (3CP) model produces the maximum reduction in entropy generation, generally around 13% with moderated HTP of 1.1. Moreover, when comparing slotted and notched pinned heat sinks, the 10S slotted and 10 N notched pinned heat sinks achieve 1.45 of HTP. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Hydrothermal Performance Maximisation and Entropy Generation Minimisation of Different Perforated Pinned Heat Sink Designs for Electronic Cooling | |
type | Journal Paper | |
journal volume | 144 | |
journal issue | 11 | |
journal title | Journal of Heat Transfer | |
identifier doi | 10.1115/1.4055243 | |
journal fristpage | 114502 | |
journal lastpage | 114502_6 | |
page | 6 | |
tree | Journal of Heat Transfer:;2022:;volume( 144 ):;issue: 011 | |
contenttype | Fulltext |