Effect of structural parameters on flow boiling performance of sintered microchannels

doi:10.11949/0438-1157.20230970

Abstract

Abstract:

The application of microchannel boiling cooling for electronic devices has attracted much attention in recent years. An experimental study of the flow boiling in sintered microchannels was carried out, focusing on the effects of channel width on the flow boiling performance. Sintered microchannels were sintered by 150 μm dendritic copper powder by the pressurized sintering. Three types of parallel microchannels with channel widths of 1.8 mm, 0.6 mm, and 0.2 mm were prepared, corresponding to channel number, 11, 22, and 33, respectively. It was found that there exists the optimal channel width for the sintered microchannel, which could achieve the maximum heat transfer coefficient of 200 kW/(m²·K), and the largest critical heat flux of about 170 W/cm²at a flow rate of 4 L/h. Visual research found that the channel width has a great impact on the pressure pulsation curve. A moderate channel width pressure pulsation curve is more orderly, which greatly alleviates the pressure pulsation and thereby improves the boiling heat transfer performance of the microchannel.

Key words: sintering, evaporation, microchannels, subcooled flow boiling, gas-liquid flow

摘要：

微通道沸腾冷却在电子器件方面的应用近年备受关注。将多孔烧结微通道作为微电子器件的有效冷却方案进行了流动沸腾传热性能的实验研究，重点围绕热通量和通道宽度对流动沸腾特性的影响。烧结微通道采用铜粉加压烧结的方法，使用150 μm树枝状铜粉进行烧结，制备了三种通道宽度分别为1.8、0.6和0.2 mm的并联微通道，对应的槽数分别为11、22和33槽。研究发现：存在最优通道宽度，其综合沸腾换热效果达到最优。在4 L/h流量下，中等宽度样品最高传热系数可达200 kW/(m²·K)，临界热通量可达到170 W/cm²左右。可视化研究发现：通道宽度对压力脉动曲线会造成很大影响，适中的通道宽度压力脉动曲线更为有序，大大缓解压力脉动从而提升微通道的沸腾换热性能。

关键词: 烧结, 蒸发, 微通道, 过冷流动沸腾, 气液两相流

CLC Number:

TK 124

Jian XU, Donghui ZHANG, Jun HUANG, Lei FENG, Fengyuan YANG, Xiang GAO. Effect of structural parameters on flow boiling performance of sintered microchannels[J]. CIESC Journal, 2023, 74(11): 4548-4558.

徐健, 张东辉, 黄俊, 冯磊, 杨丰源, 高祥. 结构参数对烧结微通道流动沸腾性能的影响[J]. 化工学报, 2023, 74(11): 4548-4558.

Figures/Tables 16

Fig.1 Schematic diagram of microchannel experimental test system

Fig.2 Schematic diagram of microchannel heat sink

Fig.3 Schematic diagram of sintered microchannels with different channel widths

Table 1 Sintered microchannel structural parameters

铜粉粒径/μm	微通道深度/mm	微通道数目	微通道宽度/mm
150	1.2	11,22,33	1.8,0.6,0.2

Fig.4 Electron micrograph of sintered microchannel samples

Fig.5 Variation of capillary rise height with time for samples with different slot widths

Fig.6 Boiling curves for different channel numbers

Fig.7 HTC curves for different channel numbers

Fig.8 Average pressure drop curves of sintered microchannels with different channel widths

Fig.9 Effect of flow rate on boiling and heat transfer coefficient curves

Fig.10 Pressure pulsation and localized magnification of 11-channels sample at 100 W/cm 2

Fig.11 Visualization of 11-channels sintered sample

Fig.12 Pressure pulsation and localized magnification of 22-channels sample at 100 W/cm2

Fig.13 Visualization of 22-channels sintered sample

Fig.14 Pressure pulsation and localized magnification of 33-channels sample at 100 W/cm2

Fig.15 Visualization of 33-channels sintered sample

References 32

1	Chen Z P, Narita A, Müllen K. Graphene nanoribbons: on-surface synthesis and integration into electronic devices[J]. Advanced Materials, 2020, 32(45): 2001893.
2	Agamloh E, von Jouanne A, Yokochi A. An overview of electric machine trends in modern electric vehicles[J]. Machines, 2020, 8(2): 20.
3	章学来, 刘田田, 赵群志, 等. 不同材料和球径的多孔球层内水的过冷度分析[J]. 化工学报, 2015, 66(6): 2011-2016.
	Zhang X L, Liu T T, Zhao Q Z, et al. Analysis of supercooling degree of water in ball-packed porous structure of different materials and diameters[J]. CIESC Journal, 2015, 66(6): 2011-2016.
4	Ali Majedi S, Azizi S, Peyghambarzadeh S M, et al. Investigation and measurement of crude oil heat transfer coefficient in forced convection and subcooled flow boiling heat transfer[J]. Journal of Thermal Analysis and Calorimetry, 2023, 148(12): 5805-5818.
5	Mukherjee S, Poloju V, Mishra P C. Heat transfer, exergoeconomic performance and sustainability impact of a novel CuO + MgO + GO/water ternary nanofluid[J]. Applied Thermal Engineering, 2023, 235: 121391.
6	Devahdhanush V S, Mudawar I, Nahra H K, et al. Experimental heat transfer results and flow visualization of vertical upflow boiling in Earth gravity with subcooled inlet conditions — in preparation for experiments onboard the International Space Station[J]. International Journal of Heat and Mass Transfer, 2022, 188: 122603.
7	Ma Z Y, Fang X D. An overview of gravity effects on flow boiling instabilities[J]. Progress in Aerospace Sciences, 2022, 128: 100764.
8	Dedov A V. A review of modern methods for enhancing nucleate boiling heat transfer[J]. Thermal Engineering, 2019, 66(12): 881-915.
9	Ongena J, Ogawa Y. Nuclear fusion: status report and future prospects[J]. Energy Policy, 2016, 96: 770-778.
10	Mukherjee S, Ebrahim S, Mishra P C, et al. A review on pool and flow boiling enhancement using nanofluids: nuclear reactor application[J]. Processes, 2022, 10(1): 177.
11	Giustini G. Modelling of boiling flows for nuclear thermal hydraulics applications—a brief review[J]. Inventions, 2020, 5(3): 47.
12	Li X D. Multiscale modelling of nucleate boiling on nanocoatings for electronics cooling—from nanoscale to macroscale[J]. Experimental and Computational Multiphase Flow, 2021, 3(4): 233-241.
13	Fan S M, Duan F. A review of two-phase submerged boiling in thermal management of electronic cooling[J]. International Journal of Heat and Mass Transfer, 2020, 150: 119324.
14	Hoang C H, Rangarajan S, Manaserh Y, et al. A review of recent developments in pumped two-phase cooling technologies for electronic devices[J]. IEEE Transactions on Components, Packaging and Manufacturing Technology, 2021, 11(10): 1565-1582.
15	Zhang X L, Ji Z, Wang J F, et al. Research progress on structural optimization design of microchannel heat sinks applied to electronic devices[J]. Applied Thermal Engineering, 2023, 235: 121294.
16	Lee J, Mudawar I. Low-temperature two-phase micro-channel cooling for high-heat-flux thermal management of defense electronics[C]//2008 11th Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems. Orlando, FL: IEEE, 2008: 132-144.
17	Law M, Lee P S. Effects of varying secondary channel widths on flow boiling heat transfer and pressure characteristics in oblique-finned microchannels[J]. International Journal of Heat and Mass Transfer, 2016, 101: 313-326.
18	Clark M D, Weibel J A, Garimella S V. Impact of pressure drop oscillations and parallel channel instabilities on microchannel flow boiling and critical heat flux[J]. International Journal of Multiphase Flow, 2023, 161: 104380.
19	Lee J, Mudawar I. Fluid flow and heat transfer characteristics of low temperature two-phase micro-channel heat sinks(Part 1): Experimental methods and flow visualization results[J]. International Journal of Heat and Mass Transfer, 2008, 51(17/18): 4315-4326.
20	Lee J, Mudawar I. Fluid flow and heat transfer characteristics of low temperature two-phase micro-channel heat sinks(Part 2): Subcooled boiling pressure drop and heat transfer[J]. International Journal of Heat and Mass Transfer, 2008, 51(17/18): 4327-4341.
21	Zhang L A, Wang E N, Goodson K E, et al. Phase change phenomena in silicon microchannels[J]. International Journal of Heat and Mass Transfer, 2005, 48(8): 1572-1582.
22	Sofia K. Experimental study on local heat transfer coefficients and the effect of aspect ratio on flow boiling in a microchannel[D]. Edinburgh, Scotland, UK: University of Edinburgh, 2018.
23	Harirchian T, Garimella S V. Microchannel size effects on local flow boiling heat transfer to a dielectric fluid[J]. International Journal of Heat and Mass Transfer, 2008, 51(15/16): 3724-3735.
24	Harirchian T, Garimella S V. The critical role of channel cross-sectional area in microchannel flow boiling heat transfer[J]. International Journal of Multiphase Flow, 2009, 35(10): 904-913.
25	Deng D X, Xie Y L, Huang Q S, et al. Flow boiling performance of Ω-shaped reentrant copper microchannels with different channel sizes[J]. Experimental Thermal and Fluid Science, 2015, 69: 8-18.
26	Deng D X, Zhang Z K, Wan W, et al. Investigation on burr formation characteristics in micro milling of Ω-shaped reentrant microchannels[J]. Journal of Manufacturing Processes, 2022, 80: 754-764.
27	Zhang S W, Sun Y L, Yuan W, et al. Effects of heat flux, mass flux and channel width on flow boiling performance of porous interconnected microchannel nets[J]. Experimental Thermal and Fluid Science, 2018, 90: 310-318.
28	Hung T C, Yan W M, Wang X D, et al. Optimal design of geometric parameters of double-layered microchannel heat sinks[J]. International Journal of Heat and Mass Transfer, 2012, 55(11/12): 3262-3272.
29	Ling W S, Zhou W, Liu C Z, et al. Structure and geometric dimension optimization of interlaced microchannel for heat transfer performance enhancement[J]. Applied Thermal Engineering, 2020, 170: 115011.
30	Wu H Y, Cheng P. Friction factors in smooth trapezoidal silicon microchannels with different aspect ratios[J]. International Journal of Heat and Mass Transfer, 2003, 46(14): 2519-2525.
31	do Nascimento F J, Leão H L S L, Ribatski G. An experimental study on flow boiling heat transfer of R134a in a microchannel-based heat sink[J]. Experimental Thermal and Fluid Science, 2013, 45: 117-127.
32	Zhang D H, Mao J J, Qu J, et al. Characterizing effect of particle size on flow boiling in sintered porous-microchannels[J]. Applied Thermal Engineering, 2023, 229: 120571.

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