Influence of an aspect ratio of rectangular channel on the cooling performance of a multichip module

被引：0
作者：
Mingoo Choi
Keumnam Cho
机构：
[1] Sungkyunkwan University,School of Mechanical Engineering
来源：
KSME International Journal | 2000年 / 14卷
关键词：
Aspect Ratio; Rectangular Channel; Discrete Heat Source; Friction Factor; Nusselt Number;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Experiments were performed by using PF-5060 and water to investigate the influence of an aspect ratio of a horizontal rectangular channel on the cooling characteristics from an in-line 6×1 array of discrete heat sources which were flush mounted on the top wall of the channel. The experimental parameters were aspect ratio of rectangular channel, heat flux of simulated VLSI chip, and channel Reynolds number. The chip surface temperatures decreased with the aspect ratio at the first and sixth rows, and decreased more rapidly at a high heat flux than at a low heat flux. The measured friction factors at each aspect ratio for both water and PF-5060 gave a good agreement with the values predicted by the modified Blasius equation within ±7%. The Nusselt number increased as the aspect ratio decreased, but the increasing rate of Nusselt number reduced as the aspect ratio decreased. A 5∶1 rectangular channel yields the most efficient cooling performance when the heat transfer and pressure drop in the test section were considered simultaneously.
引用
收藏
页码：350 / 357
页数：7
相关论文
共 20 条
  • [1] Choi M.(1999)Thermal Characteristics of a Multichip Module Using PF −5060 and Water KSME Int. J. 13 443-450
  • [2] Cho K.(1990)Heat Transfer Characteristics of an Array of Protruding Elements in Single Phase Forced Convection Int. J. Heat Mass Transfer 33 2659-2669
  • [3] Garimella S. V.(1992)Liquid Immersion Cooling of a Longitudinal Array of Discrete Heat Sources in Protruding Substrates: II-Single-phase Convection Trans. of the ASME, J. Electronic Packaging 114 55-62
  • [4] Eibeck P. A.(1986)Convection Heat Transfer from Discrete Heat Sources in a Rectangular Channel Int. J. Heat Mass Transfer 29 1051-1058
  • [5] Heindel T. J.(1976)An Improvement in the Calculation of Turbulent Friction in Rectangular Ducts J. Fluid Engineering 98 173-181
  • [6] Ramadhyani S.(1986)Heat Transfer to Water Flowing Turbulently through a Rectangular Duct with Asymmetric Heating Int. J. Heat Mass Transfer 29 1283-1291
  • [7] Incropera F. P.(1985)Using Uncertainty Analysis in the Planning of and Experiment J. Fluid Engineering 107 173-182
  • [8] Incropera F. P.(1966)Experiments on Turbulent Heat Transfer in an Asymmetrically Heated Rectangular Duct Trans. of the ASME, J. Heat Transfer 88 170-174
  • [9] Kerby J. S.(1970)An Experimental Investigation of Forced Convective Heat Transfer for Fully-Developed Turbulent Flow in a Rectangular Duct with Asymmetric Heating Sol. Energy 13 121-125
  • [10] Moffatt D. F.(undefined)undefined undefined undefined undefined-undefined
12