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Technology Reviews

History, Advances, and Challenges in Liquid Flow and Flow Boiling Heat Transfer in Microchannels: A Critical Review

[+] Author and Article Information
Satish G. Kandlikar

 ASME Fellow Rochester Institute of Technology, Rochester, NY 14623sgkeme@rit.edu

J. Heat Transfer 134(3), 034001 (Jan 10, 2012) (15 pages) doi:10.1115/1.4005126 History: Received July 08, 2010; Revised February 16, 2011; Published January 10, 2012; Online January 10, 2012

As the scale of devices becomes small, thermal control and heat dissipation from these devices can be effectively accomplished through the implementation of microchannel passages. The small passages provide a high surface area to volume ratio that enables higher heat transfer rates. High performance microchannel heat exchangers are also attractive in applications where space and/or weight constraints dictate the size of a heat exchanger or where performance enhancement is desired. This survey article provides a historical perspective of the progress made in understanding the underlying mechanisms in single-phase liquid flow and two-phase flow boiling processes and their use in high heat flux removal applications. Future research directions for (i) further enhancing the single-phase heat transfer performance and (ii) enabling practical implementation of flow boiling in microchannel heat exchangers are outlined.

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Copyright © 2012 by American Society of Mechanical Engineers
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Figures

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Figure 1

Publication histogram showing papers related to single-phase liquid heat transfer and fluid flow in microchannels

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Figure 2

Publication histogram showing papers related to flow boiling heat transfer and two-phase flow in microchannels

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Figure 3

Historical development timeline over 25 years highlighting advances in single-phase liquid flow in microchannels

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Figure 4

Effect of dissolved gases on adiabatic friction factors in microchannels, redrawn from Ref. [63]

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Figure 5

Historical development timeline over 25 years highlighting advances in flow boiling in microchannels

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Figure 6

Heat transfer coefficient variation with quality in a narrow channel of height 110 μm by Moriyama [113], redrawn from the original plot

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Figure 7

Comparison of the flow boiling plot with Armstrong’s pool boiling correlation by Moriyama [113], redrawn from the original plot

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Figure 8

Schematic of the slug flow model employed by Moriyama [113], redrawn from the original plot

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Figure 9

Schematic of the film flow model employed by Moriyama [113], redrawn from the original plot

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Figure 10

Variation of heat transfer coefficient with capillary number, Ca, for two gaps: (a) 65 μm, and (b) 110 μm obtained by Moriyama [113], redrawn from the original plot

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Figure 11

Comparison of CHF predictions by Kandlikar [179] with parent data in microchannels and minichannels

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