ASSESSMENT OF RELIABILITY ENHANCEMENT IN HIGH-POWER CPUs AND GPUs USING DYNAMIC DIRECT-TO-CHIP LIQUID COOLING

ParDeep Shahi; Amith Mathew; AkashSatyam SainiPratik BansodeRajesh KasukurthyDereje Agonafer

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ASSESSMENT OF RELIABILITY ENHANCEMENT IN HIGH-POWER CPUs AND GPUs USING DYNAMIC DIRECT-TO-CHIP LIQUID COOLING

机译：ASSESSMENT OF RELIABILITY ENHANCEMENT IN HIGH-POWER CPUs AND GPUs USING DYNAMIC DIRECT-TO-CHIP LIQUID COOLING

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Thermal management of high-performance computing servers is becoming a prevalent challenge for the data-center cooling industry due to increasing power densities at the server level and data-center level. Efficient heat dissipation is also directly related to electronic package reliability. Improved cooling technologies like direct-to-chip liquid cooling can address the rising cooling demands due to the higher thermal performance of water-based coolants. A methodology to further enhance the efficiency of direct liquid cooling (DLC) is experimentally investigated using the concept of dynamic cooling. A flow control device (FCD) was developed to regulate the flow rate to four custom-made thermal test vehicles (TTV) using ceramic heaters. The TTV assembly was placed at four different levels in a standard 19-inch information technology equipment (ITE) rack in test fixtures mounted with cold plates. The flow regulation to each of the TTVs was done based on the power dissipated by each TTV. The power dissipation of each TTV was varied for various non-homogeneous power-distribution values in the entire rack. The influence of coolant inlet temperature and flow rate on the TTV temperature and rack pressure drops was analyzed. The results indicated more uniform temperatures on the TTVs and a reduction in the maximum temperature on the TTV with maximum power. The impact of the temperature uniformity on package level reliability was also analyzed by comparing the results obtained with the published literature.

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《Journal of enhanced heat transfer: Theory and application in high performance heat and mass transfer》 |2022年第8期|1-13|共13页
作者
ParDeep Shahi; Amith Mathew; AkashSatyam SainiPratik BansodeRajesh KasukurthyDereje Agonafer;
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作者单位

Mechanical and Aerospace Engineering Department, The University of Texas at Arlington, 500 W 1st St., Arlington, Texas 76019, USA;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类热力工程、热机;
关键词
data center; liquid cooling; electronics cooling; cold plate;

ASSESSMENT OF RELIABILITY ENHANCEMENT IN HIGH-POWER CPUs AND GPUs USING DYNAMIC DIRECT-TO-CHIP LIQUID COOLING

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