Heat Transfer Enhancement through Different Heat Sink/Impinging Air Jet Parameters an Experimental Approach

IF 0.6 4区 工程技术 Q4 MECHANICS
Mechanika Pub Date : 2023-02-06 DOI:10.5755/j02.mech.31929
M. Beriache, Brahim Hicham Cherki, L. Mokhtar Saïdia, N. A. Che Sidik, M. Rizalman
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引用次数: 0

Abstract

In the present work, enhancement of the thermal performance of a central processor unit (CPU) cooling system through a heat sink subjected to an impinging air jet is realized. The height of the impinging air jet duct, the mode of air flow on the heat sink, air blowing mode and  as well as the suction blow mode "pull" and the air jet duct geometry are three important influence parameters on the phenomenon. The results obtained show that a jet height H = 20mm, a convergent duct of H = 40mm in height and a hair dryer tip provide further improvement of the cooling technique. The two preceding parameters combined with the fan air suction blow mode improve the performance by at least 11,2% compared to the initial configuration (marketed product), having as characteristics (H = 0mm, fan in the blowing push mode). The use of a converging duct and a hair dryer conduit show that the velocities from the hair dryer tip far exceed those from the best standard conduit height, H=20 mm. That said, the improvement of the flow in the central zone is substantially achieved, which consequently improves the heat removal in this zone at least 19%.
不同散热器/冲击气流参数强化换热的实验研究
在本工作中,实现了中央处理器(CPU)冷却系统的热性能的增强,通过一个散热器受到撞击的空气射流。冲击气流射流管的高度、气流在散热器上的流动方式、气流的吹风方式以及吸气吹风方式的“拉力”和射流管的几何形状是影响该现象的三个重要参数。结果表明,射流高度H = 20mm、会聚风道高度H = 40mm和吹风机尖端可以进一步改进冷却技术。上述两个参数与风机吸气吹气方式相结合,与初始配置(市售产品)相比,性能至少提高了11.2%,具有如下特性(H = 0mm,风机在吹气推动模式下)。采用汇聚风管和吹风机导管的实验结果表明,从吹风机尖端流出的速度远远超过最佳标准导管高度H= 20mm流出的速度。也就是说,中心区域的流动得到了很大的改善,从而提高了该区域的排热率至少19%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Mechanika
Mechanika 物理-力学
CiteScore
1.30
自引率
0.00%
发文量
50
审稿时长
3 months
期刊介绍: The journal is publishing scientific papers dealing with the following problems: Mechanics of Solid Bodies; Mechanics of Fluids and Gases; Dynamics of Mechanical Systems; Design and Optimization of Mechanical Systems; Mechanical Technologies.
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