An experimental study on hydrothermal performance of microchannel heat sinks with 4-ports and offset zigzag channels

Ma, Dandan; Wang, J.; Yang, Yuchen; Jia, Yuting; Zong, Luxiang

doi:10.1016/j.enconman.2017.09.052

Cited by 46 publications

(7 citation statements)

References 29 publications

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“…According to the data, as the rate of mass flow increases, the pressure decreases. In an experimental scenario, Ma et al [17] examined the heat transmission and the fluid flow via a four-port heat source that included both chevron and rectangular motifs. When the input temperature was equal to 25°C, the flow rate of deionized water varied between 28 and 72 mL/min.…”

Section: Introductionmentioning

confidence: 99%

An Experimental Assessment into the Pressure and Thermal Efficacy of Chemically Synthesized Nanofluids in Computer Cooling Applications

Anish

Bency²,

Jayaprakash

et al. 2022

Journal of Nanomaterials

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In order to maintain ideal working conditions by reducing heat from the system, a certain mechanism must be put into place. This research aims to investigate the effects of nanofluids on the performance of microchannel heating components used in computer cooling methods. The mixture of 25% ethylene glycol and 75% alkaline water is used to create the working fluids in the experiment. The combination contains nanoparticles of SiC, TiO2, and ZnO. It is between 25 and 40°C, includes 0.25%–1.5% nanoparticles, and has a volume flow rate of 0.025–0.080 kg/s. The temperature of the central processing unit, the rate of heat transfer, pressure losses, and pumping power have all been researched in relation to the thermal properties of nanofluids and base fluids. Data show that SiC–EG/AW at 1.5% concentration and 0.080 kg/s has a 31% higher coefficient of heat transfer than the base fluid and a temperature that is 9% lower than that of the other nanofluids. This is due to the fact that SiC–EG/AW has the highest pumping force power and TiO2–EG/AW has the lowest pressure decrease. Because the nanofluid performs better than the basic fluid at cooling computers, a little boost in pumping force and pressure reduction may be acceptable.

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Section: Introductionmentioning

confidence: 99%

An Experimental Assessment into the Pressure and Thermal Efficacy of Chemically Synthesized Nanofluids in Computer Cooling Applications

Anish

Bency²,

Jayaprakash

et al. 2022

Journal of Nanomaterials

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“…The microchannel technology has the advantage of small volume and high heat transfer. Many researchers have studied the structural parameters of microchannels [3][4][5][6][7][8][9][10][11][12][13]. Rhombus fractal-like units [5] and spider-netted microchannels [7] have excellent heat dissipation performance.…”

Section: Introductionmentioning

confidence: 99%

Dual Synthetic Jet Actuator and Its Applications—Part IV: Analysis of Heat Dissipation and Entropy Generation of Liquid Cooling with Dual Synthetic Jet Actuator

et al. 2022

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Increasing heat flux restricts the development of the miniaturization of electronic devices. There is an urgent need for a heat dissipation method that will efficiently cool the chip. This paper presents a novel liquid cooling device based on dual synthetic jets actuator (DSJA) technology. The characteristics of the temperature and velocity field of the device are numerically studied by a three-dimensional coupled heat transfer model. The entropy generation rate caused by heat transfer and fluid friction was studied to analyze the effective work loss and irreversibility of the heat transfer process. When the DSJA is turned on, the temperature of the heat source with a heat flux of 200 W/cm2 is 73.07 °C, and the maximum velocity is 24.32 m/s. Compared with the condition when the the DSJA is closed, the temperature decreases by 25.15 °C, and the velocity increases by nearly 20 m/s. At this time, the total inlet flow is 1.26 L/min. The larger frictional entropy generation is mainly distributed near the inlet and outlet of the channel and the jet orifice. The higher the velocity is, the more obvious the frictional entropy generation is. Due to the large temperature gradient, there is a large thermal entropy generation rate at the fluid–solid interface.

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“…A number of researchers worked on different methods to enhance the thermal hydraulic performances of microchannel. For instance, Ma et al 21 concluded that optimizing the microchannel geometry along with using nanofluids with specific nano particles volume fraction at low Reynolds number enhanced the cooling capability of the MCHS. Further, Yang et al 22 studied the internal shape of the channels.…”

Section: Introductionmentioning

confidence: 99%

Experimental study of the performance of concentrator photovoltaic/thermoelectric generator system integrated with a new 3D printed microchannel heat sink

et al. 2021

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Finding the most optimal configuration of hybrid concentrator photovoltaic (CPV)-thermoelectric power generator (TEG) system integrated with a microchannel heat sink (MCHS) is of great importance to achieve the best performance. Thus, two different hybrid configurations were chosen for the study including CPV/TEG/heat sink and CPV/heat sink/TEG. In addition, the performance of both hybrid configurations was compared with standalone CPV/heat sink and TEG/heat sink. In the conventional hybrid design, the TEG was directly attached to the back surface of the CPV module, whereas the other side of the TEG was integrated with MCHS. In the new hybrid design, the MCHS was sited between the CPV and the TEG module as both sides were subjected to concentrated solar radiation. Effects of varying the simulated solar

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An experimental study on hydrothermal performance of microchannel heat sinks with 4-ports and offset zigzag channels

Cited by 46 publications

References 29 publications

An Experimental Assessment into the Pressure and Thermal Efficacy of Chemically Synthesized Nanofluids in Computer Cooling Applications

An Experimental Assessment into the Pressure and Thermal Efficacy of Chemically Synthesized Nanofluids in Computer Cooling Applications

Dual Synthetic Jet Actuator and Its Applications—Part IV: Analysis of Heat Dissipation and Entropy Generation of Liquid Cooling with Dual Synthetic Jet Actuator

Experimental study of the performance of concentrator photovoltaic/thermoelectric generator system integrated with a new 3D printed microchannel heat sink

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