A review on flow boiling enhancement and fabrication of enhanced microchannels of microchannel heat sinks

Deng, Daxiang; Zeng, Long; Sun, Wei

doi:10.1016/j.ijheatmasstransfer.2021.121332

Cited by 210 publications

(32 citation statements)

References 210 publications

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“…Kandlikar and Grande (Kandlikar and Grande, 2003) termed the heat sinks with channel hydraulic diameters ranging between 10 μm and 200 μm as microchannel heat sinks. Microchannel heat sinks can provide effective cooling in challenging, high heat flux dissipation problems from the electronics industry (Waqas et al, 2022;Deng et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Numerical Investigation of Various Twisted Tapes Enhancing a Circular Microchannel Heat Sink Performance

Ali¹,

Rona²,

Angelino³

2022

SSRN Journal

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Section: Introductionmentioning

confidence: 99%

Numerical Investigation of Various Twisted Tapes Enhancing a Circular Microchannel Heat Sink Performance

Ali¹,

Rona²,

Angelino³

2022

SSRN Journal

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“…2 The power densities at the hot spots of high-performance electronic chips can reach up to 1000 W/cm 2 , which far exceeds the heat dissipation capacity of the most used air or water cooling methods. 3 Phase-change heat transfer methods via boiling has become one of the most hopeful solutions owing to its ultra-high heat transfer efficiency. Furthermore, boiling heat transfer has already been utilized in the thermal management of high-power density system such as data centers, 4 high-power lighting equipment, 5 and especially for integrated electronics.…”

Section: Introductionmentioning

confidence: 99%

“…The rapid development of high-performance computers and other electronic devices are calling for a substantial increase of heat dissipation capacity . The power densities at the hot spots of high-performance electronic chips can reach up to 1000 W/cm 2 , which far exceeds the heat dissipation capacity of the most used air or water cooling methods . Phase-change heat transfer methods via boiling has become one of the most hopeful solutions owing to its ultra-high heat transfer efficiency.…”

Section: Introductionmentioning

confidence: 99%

Micro-pin-finned Surfaces with Fractal Treelike Hydrophilic Networks for Flow Boiling Enhancement

Yuan

Liu

Cui

et al. 2021

ACS Appl. Mater. Interfaces

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Due to its outstanding heat transfer performance, flow boiling has a wide range of applications in many fields, especially for cooling of electronic devices. Previous studies have shown that the liquid replenishment on the downstream of the heating surface is the critical restriction of the increase of the critical heat flux (CHF). In this work, we designed a series of heterogeneous surfaces with fractal treelike hydrophilic networks for flow boiling enhancement. The micro-pin-finned surface structures are expected to increase the CHF and reduce the superheat by its high wickability. Moreover, by virtue of the efficient transport capacity of treelike networks, the fractal hydrophilic paths are designed to serve as the liquid delivery channels for the liquid replenishment on the downstream of the heating surface. The heterogeneous surfaces improve the comprehensive boiling heat transfer performance, especially the CHF, which is 82.2% higher than that of the smooth surface and 5.4% higher than the surface homogeneously covered by the microstructure with twice of the extended surface area. This work provides reference for the design of heterogeneous surfaces with both smooth and structured parts to increase the flow boiling CHF to some extent.

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“…The surface micro/nanostructure can be used in the micro-channel to increase the nucleate site density, promote the nucleation of bubbles at low wall superheat, and restrain boiling delay, thus not only eliminating the two-phase instability but also enhancing boiling heat transfer [22][23][24]. Some scholars have put forward methods for active suppression of micro-channel flow boiling instability, such as increasing the inlet liquid pressure to prevent backflow [25], using a subcooled liquid jet to prevent bubbles from growing [26,27], etc.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Heat Transfer Performance of Pump-Assisted Capillary Phase-Change Loop

et al. 2021

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To overcome the two-phase flow instability of traditional boiling heat dissipation technologies, a porous wick was used for liquid-vapor isolation, achieving efficient and stable boiling heat dissipation. A pump-assisted capillary phase-change loop with methanol as the working medium was established to study the effect of liquid-vapor pressure difference and heating power on its start-up and steady-state characteristics. The results indicated that the evaporator undergoes four heat transfer modes, including flooded, partially flooded, thin-film evaporation, and overheating. The thin-film evaporation mode was the most efficient with the shortest start-up period. In addition, heat transfer modes were determined by the liquid-vapor pressure difference and power. The heat transfer coefficient significantly improved and the thermal resistance was reduced by increasing liquid-vapor pressure as long as it did not exceed 8 kPa. However, when the liquid-vapor pressure exceeded 8 kPa, its influence on the heat transfer coefficient weakened. In addition, a two-dimensional heat transfer mode distribution diagram concerning both liquid-vapor pressure difference and power was drawn after a large number of experiments. During an engineering application, the liquid-vapor pressure difference can be controlled to maintain efficient thin-film evaporation in order to achieve the optimum heat dissipation effect.

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A review on flow boiling enhancement and fabrication of enhanced microchannels of microchannel heat sinks

Cited by 210 publications

References 210 publications

Numerical Investigation of Various Twisted Tapes Enhancing a Circular Microchannel Heat Sink Performance

Numerical Investigation of Various Twisted Tapes Enhancing a Circular Microchannel Heat Sink Performance

Micro-pin-finned Surfaces with Fractal Treelike Hydrophilic Networks for Flow Boiling Enhancement

Experimental Study on the Heat Transfer Performance of Pump-Assisted Capillary Phase-Change Loop

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