2013
DOI: 10.3390/e15114716
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Optimal Thermal Design of a Stacked Mini-Channel Heat Sink Cooled by a Low Flow Rate Coolant

Abstract: Application requirements for avionics are often very strict. For example, the heat sinks of avionics need very good temperature uniformity, but the flow rate of coolant is very restricted. In addition, the use of micro-channels is not recommended due to the potential clogging issue. Considering these design requirements, we will discuss a multiple-objective optimal design method to obtain a good stacked mini-channel structure for avionics applications. In our thermal design, the design variables are the mini-c… Show more

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Cited by 18 publications
(16 citation statements)
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References 27 publications
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“…Vafai and Zhu [21] proposed a new design concept of double-layered microchannel heat sink (DL-MCHS), where two single-layered microchannel heat sinks (SL-MCHS) are staked one on top of the other. Following Vafai and Zhu's work, extensive studies focused on the DL-MCHS were conducted [22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37], which further justified the results indicated by Vafai and Zhu [22][23][24], demonstrated that the channel number [25,26], aspect ratios of the top and bottom channels [25][26][27][28][29], channel-to-pitch width ratio [25], and inlet velocities of both layers [26,30] have important effects on the DL-MCHS, and obtained the optimal values of these parameters. In these studies [25][26][27][28][29][30], when the effect of a specific parameter on the DL-MCHS was examined, the other parameters remained unchanged.…”
Section: Introductionmentioning
confidence: 73%
See 1 more Smart Citation
“…Vafai and Zhu [21] proposed a new design concept of double-layered microchannel heat sink (DL-MCHS), where two single-layered microchannel heat sinks (SL-MCHS) are staked one on top of the other. Following Vafai and Zhu's work, extensive studies focused on the DL-MCHS were conducted [22][23][24][25][26][27][28][29][30][31][32][33][34][35][36][37], which further justified the results indicated by Vafai and Zhu [22][23][24], demonstrated that the channel number [25,26], aspect ratios of the top and bottom channels [25][26][27][28][29], channel-to-pitch width ratio [25], and inlet velocities of both layers [26,30] have important effects on the DL-MCHS, and obtained the optimal values of these parameters. In these studies [25][26][27][28][29][30], when the effect of a specific parameter on the DL-MCHS was examined, the other parameters remained unchanged.…”
Section: Introductionmentioning
confidence: 73%
“…Pang et al [37] combines a multiple objective genetic algorithm with a computational fluid dynamics code to optimize the DL-MCHS. The temperature uniformity, entropy production, maximum temperature of heat sink and total pumping power were chosen as optimized targets simultaneously.…”
Section: Introductionmentioning
confidence: 99%
“…The design and structure of microchannels have a significant impact on hydraulic and thermal performance of heatsinks. In the last 50 years, much effort has been devoted to enhance the heat dissipation ability of heatsinks in respect to the heatsink materials and fabrication methods [1][2][3], different arrangements of equipment in cooling loops and systems [4], optimization tools [5], different coolants [6], different phases of coolants [7,8], combination of thermoelectric coolers and heatsinks [9], compact sandwiched press-pack SiC power module [10], using nanofluids [11], heat exchangers designs [12], using porous materials in heatsinks [13] and different channel shapes and designs [14].…”
Section: Introductionmentioning
confidence: 99%
“…Thermal deformation was measured during two experiments at different speeds, and also collected in the steady state. As seen, the thermal deformation of the inner ring decreases In cooling system design, the design variables-channel geometry, temperature of fluid, entropy generation, maximum temperature distribution of the spindle-bearing system, and oil cooler work-are chosen as the objective function [34]. Considering different design requirements, we will research a multi-objective optimal design method to obtain a good cooling system.…”
Section: Effect Of Cooling Systemmentioning
confidence: 99%
“…The cooling oil flow is selected as the maximum flow, and then the relationship of the heat transfer coefficient of the cooling system, the cooling oil temperature, and the equivalent diameter of the cooling channel are analyzed [33,34]. The cooling oil temperature was selected from 10˝C to 40˝C, and the equivalent diameter was selected from 0.01 m to 0.06 m; this range is analyzed by FEA and it satisfied with the structure strength.…”
Section: Effect Of Cooling Systemmentioning
confidence: 99%