Numerical study on cooling performance of hybrid micro-channel/micro-jet-impingement heat sink

Seong Hoon Kim; Hong Cheol Shin; Sung Min Kim

doi:10.1007/s12206-019-0649-7

Numerical study on cooling performance of hybrid micro-channel/micro-jet-impingement heat sink

Seong Hoon Kim, Hong Cheol Shin, Sung Min Kim

Department of Mechanical Engineering

Sungkyunkwan University

Research output: Contribution to journal › Article › peer-review

14 Scopus citations

Abstract

This study explores the cooling performance associated with single-phase hybrid micro-channel/micro-jet-impingement cooling method. A parametric study on the geometrical and operating parameters of hybrid cooling is numerically investigated. Appreciable temperature drop on the bottom surface of the micro-channel is achieved as a result of the strong impingement effects caused by reduced diameter of jet inlets, while the temperature on the bottom surface of the micro-channel increases with increasing the number of jet inlets due to weak impingement effects. The results also show that mean convective heat transfer coefficient of bottom wall can be achieved up to 11152 W/m²K using five jet inlets with diameter of 0.19 mm each.

Original language	English
Pages (from-to)	3555-3562
Number of pages	8
Journal	Journal of Mechanical Science and Technology
Volume	33
Issue number	7
DOIs	https://doi.org/10.1007/s12206-019-0649-7
State	Published - 1 Jul 2019

Keywords

High-heat-flux
Micro-channel heat sink
Micro-jet-impingement cooling
Thermal management

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10.1007/s12206-019-0649-7

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title = "Numerical study on cooling performance of hybrid micro-channel/micro-jet-impingement heat sink",

abstract = "This study explores the cooling performance associated with single-phase hybrid micro-channel/micro-jet-impingement cooling method. A parametric study on the geometrical and operating parameters of hybrid cooling is numerically investigated. Appreciable temperature drop on the bottom surface of the micro-channel is achieved as a result of the strong impingement effects caused by reduced diameter of jet inlets, while the temperature on the bottom surface of the micro-channel increases with increasing the number of jet inlets due to weak impingement effects. The results also show that mean convective heat transfer coefficient of bottom wall can be achieved up to 11152 W/m2K using five jet inlets with diameter of 0.19 mm each.",

keywords = "High-heat-flux, Micro-channel heat sink, Micro-jet-impingement cooling, Thermal management",

author = "Kim, \{Seong Hoon\} and Shin, \{Hong Cheol\} and Kim, \{Sung Min\}",

note = "Publisher Copyright: {\textcopyright} 2019, KSME \& Springer.",

year = "2019",

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doi = "10.1007/s12206-019-0649-7",

language = "English",

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journal = "Journal of Mechanical Science and Technology",

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publisher = "Korean Society of Mechanical Engineers",

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T1 - Numerical study on cooling performance of hybrid micro-channel/micro-jet-impingement heat sink

AU - Kim, Seong Hoon

AU - Shin, Hong Cheol

AU - Kim, Sung Min

PY - 2019/7/1

Y1 - 2019/7/1

N2 - This study explores the cooling performance associated with single-phase hybrid micro-channel/micro-jet-impingement cooling method. A parametric study on the geometrical and operating parameters of hybrid cooling is numerically investigated. Appreciable temperature drop on the bottom surface of the micro-channel is achieved as a result of the strong impingement effects caused by reduced diameter of jet inlets, while the temperature on the bottom surface of the micro-channel increases with increasing the number of jet inlets due to weak impingement effects. The results also show that mean convective heat transfer coefficient of bottom wall can be achieved up to 11152 W/m2K using five jet inlets with diameter of 0.19 mm each.

AB - This study explores the cooling performance associated with single-phase hybrid micro-channel/micro-jet-impingement cooling method. A parametric study on the geometrical and operating parameters of hybrid cooling is numerically investigated. Appreciable temperature drop on the bottom surface of the micro-channel is achieved as a result of the strong impingement effects caused by reduced diameter of jet inlets, while the temperature on the bottom surface of the micro-channel increases with increasing the number of jet inlets due to weak impingement effects. The results also show that mean convective heat transfer coefficient of bottom wall can be achieved up to 11152 W/m2K using five jet inlets with diameter of 0.19 mm each.

KW - High-heat-flux

KW - Micro-channel heat sink

KW - Micro-jet-impingement cooling

KW - Thermal management

UR - https://www.scopus.com/pages/publications/85068787411

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M3 - Article

AN - SCOPUS:85068787411

SN - 1738-494X

VL - 33

SP - 3555

EP - 3562

JO - Journal of Mechanical Science and Technology

JF - Journal of Mechanical Science and Technology

IS - 7

ER -

Numerical study on cooling performance of hybrid micro-channel/micro-jet-impingement heat sink

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Keywords

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