Conjugate heat transfer for single phase immersion cooling of CPU

This study develops a new design of a single-phase immersion cooling system for CPU in computers. The system consists of a loop filled with a dielectric liquid. Recirculation, which facilitates conjugate heat transfer, is driven by thermal convection without the assistance of a fan or pump. A key in...

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Main Authors: Kathan Gajjar, Huei-Ping Huang
Format: Article
Language:English
Published: Elsevier 2023-12-01
Series:Case Studies in Thermal Engineering
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2214157X23010341
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author Kathan Gajjar
Huei-Ping Huang
author_facet Kathan Gajjar
Huei-Ping Huang
author_sort Kathan Gajjar
collection DOAJ
description This study develops a new design of a single-phase immersion cooling system for CPU in computers. The system consists of a loop filled with a dielectric liquid. Recirculation, which facilitates conjugate heat transfer, is driven by thermal convection without the assistance of a fan or pump. A key innovation which allows a sustained convective flow is the asymmetric geometry of the pipe, including a section of a multi-staged Tesla valve which restricts the fluid flow to one direction. The feasibility of the system is tested by CFD (computational fluid dynamics) simulations with two choices of liquid: mineral oil and FC-3283. It is found that the case with FC-3283 attains a greater degree of cooling compared to mineral oil. In both cases, the temperature of CPU is shown to be in the range that is suitable for real applications. Suggestions are made for future explorations of the geometric effect in closed-loop cooling systems.
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spelling doaj.art-944a6e42098041e58e298832a678ea852023-12-03T05:41:28ZengElsevierCase Studies in Thermal Engineering2214-157X2023-12-0152103728Conjugate heat transfer for single phase immersion cooling of CPUKathan Gajjar0Huei-Ping Huang1Corresponding author.; School for Engineering of Matter, Transport, and Energy, Arizona State University, Tempe, AZ, USASchool for Engineering of Matter, Transport, and Energy, Arizona State University, Tempe, AZ, USAThis study develops a new design of a single-phase immersion cooling system for CPU in computers. The system consists of a loop filled with a dielectric liquid. Recirculation, which facilitates conjugate heat transfer, is driven by thermal convection without the assistance of a fan or pump. A key innovation which allows a sustained convective flow is the asymmetric geometry of the pipe, including a section of a multi-staged Tesla valve which restricts the fluid flow to one direction. The feasibility of the system is tested by CFD (computational fluid dynamics) simulations with two choices of liquid: mineral oil and FC-3283. It is found that the case with FC-3283 attains a greater degree of cooling compared to mineral oil. In both cases, the temperature of CPU is shown to be in the range that is suitable for real applications. Suggestions are made for future explorations of the geometric effect in closed-loop cooling systems.http://www.sciencedirect.com/science/article/pii/S2214157X23010341Immersion coolingConjugate heat transferTesla valve
spellingShingle Kathan Gajjar
Huei-Ping Huang
Conjugate heat transfer for single phase immersion cooling of CPU
Case Studies in Thermal Engineering
Immersion cooling
Conjugate heat transfer
Tesla valve
title Conjugate heat transfer for single phase immersion cooling of CPU
title_full Conjugate heat transfer for single phase immersion cooling of CPU
title_fullStr Conjugate heat transfer for single phase immersion cooling of CPU
title_full_unstemmed Conjugate heat transfer for single phase immersion cooling of CPU
title_short Conjugate heat transfer for single phase immersion cooling of CPU
title_sort conjugate heat transfer for single phase immersion cooling of cpu
topic Immersion cooling
Conjugate heat transfer
Tesla valve
url http://www.sciencedirect.com/science/article/pii/S2214157X23010341
work_keys_str_mv AT kathangajjar conjugateheattransferforsinglephaseimmersioncoolingofcpu
AT hueipinghuang conjugateheattransferforsinglephaseimmersioncoolingofcpu