Experimental Investigation of Embedded Micropin-Fins for Single-Phase Heat Transfer and Pressure DropSource: Journal of Electronic Packaging:;2018:;volume( 140 ):;issue: 002::page 21001Author:Kharangate, Chirag R.
,
Wook Jung, Ki
,
Jung, Sangwoo
,
Kong, Daeyoung
,
Schaadt, Joseph
,
Iyengar, Madhusudan
,
Malone, Chris
,
Lee, Hyoungsoon
,
Asheghi, Mehdi
,
Goodson, Kenneth E.
DOI: 10.1115/1.4039475Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Three-dimensional (3D) stacked integrated circuit (IC) chips offer significant performance improvement, but offer important challenges for thermal management including, for the case of microfluidic cooling, constraints on channel dimensions, and pressure drop. Here, we investigate heat transfer and pressure drop characteristics of a microfluidic cooling device with staggered pin-fin array arrangement with dimensions as follows: diameter D = 46.5 μm; spacing, S ∼ 100 μm; and height, H ∼ 110 μm. Deionized single-phase water with mass flow rates of m˙ = 15.1–64.1 g/min was used as the working fluid, corresponding to values of Re (based on pin fin diameter) from 23 to 135, where heat fluxes up to 141 W/cm2 are removed. The measurements yield local Nusselt numbers that vary little along the heated channel length and values for both the Nu and the friction factor do not agree well with most data for pin fin geometries in the literature. Two new correlations for the average Nusselt number (∼Re1.04) and Fanning friction factor (∼Re−0.52) are proposed that capture the heat transfer and pressure drop behavior for the geometric and operating conditions tested in this study with mean absolute error (MAE) of 4.9% and 1.7%, respectively. The work shows that a more comprehensive investigation is required on thermofluidic characterization of pin fin arrays with channel heights Hf < 150 μm and fin spacing S = 50–500 μm, respectively, with the Reynolds number, Re < 300.
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contributor author | Kharangate, Chirag R. | |
contributor author | Wook Jung, Ki | |
contributor author | Jung, Sangwoo | |
contributor author | Kong, Daeyoung | |
contributor author | Schaadt, Joseph | |
contributor author | Iyengar, Madhusudan | |
contributor author | Malone, Chris | |
contributor author | Lee, Hyoungsoon | |
contributor author | Asheghi, Mehdi | |
contributor author | Goodson, Kenneth E. | |
date accessioned | 2019-02-28T11:14:15Z | |
date available | 2019-02-28T11:14:15Z | |
date copyright | 5/9/2018 12:00:00 AM | |
date issued | 2018 | |
identifier issn | 1043-7398 | |
identifier other | ep_140_02_021001.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl1/handle/yetl/4254159 | |
description abstract | Three-dimensional (3D) stacked integrated circuit (IC) chips offer significant performance improvement, but offer important challenges for thermal management including, for the case of microfluidic cooling, constraints on channel dimensions, and pressure drop. Here, we investigate heat transfer and pressure drop characteristics of a microfluidic cooling device with staggered pin-fin array arrangement with dimensions as follows: diameter D = 46.5 μm; spacing, S ∼ 100 μm; and height, H ∼ 110 μm. Deionized single-phase water with mass flow rates of m˙ = 15.1–64.1 g/min was used as the working fluid, corresponding to values of Re (based on pin fin diameter) from 23 to 135, where heat fluxes up to 141 W/cm2 are removed. The measurements yield local Nusselt numbers that vary little along the heated channel length and values for both the Nu and the friction factor do not agree well with most data for pin fin geometries in the literature. Two new correlations for the average Nusselt number (∼Re1.04) and Fanning friction factor (∼Re−0.52) are proposed that capture the heat transfer and pressure drop behavior for the geometric and operating conditions tested in this study with mean absolute error (MAE) of 4.9% and 1.7%, respectively. The work shows that a more comprehensive investigation is required on thermofluidic characterization of pin fin arrays with channel heights Hf < 150 μm and fin spacing S = 50–500 μm, respectively, with the Reynolds number, Re < 300. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Experimental Investigation of Embedded Micropin-Fins for Single-Phase Heat Transfer and Pressure Drop | |
type | Journal Paper | |
journal volume | 140 | |
journal issue | 2 | |
journal title | Journal of Electronic Packaging | |
identifier doi | 10.1115/1.4039475 | |
journal fristpage | 21001 | |
journal lastpage | 021001-12 | |
tree | Journal of Electronic Packaging:;2018:;volume( 140 ):;issue: 002 | |
contenttype | Fulltext |