Results 1 to 10 of about 7,300 (185)

Numerical Study of Thermal Enhancement in a Single- and Double-Layer Microchannel Heat Sink with Different Ribs [PDF]

open access: yesMicromachines, 2022
In this paper, a microchannel heat sink model was proposed to realize single- and double- layer flow through built-in ribs. The finite element volume method was used to analyze the influence of the length, thickness and angle of the inner rib on the flow
Miaolong Cao   +3 more
doaj   +2 more sources

Parametric study for optimizing double-layer microchannel heat sink for solar panel thermal management [PDF]

open access: yesScientific Reports, 2022
The most significant issue affecting the electric efficiency of solar panels is overheating. Concentration photovoltaic (CPV) modules work by converting approximately 80% of sunlight to heat; this may exceed the cell operating temperature limits ...
Hesham I. Elqady   +2 more
doaj   +2 more sources

Flow characteristics and heat transfer performance in a Y-Fractal mini/microchannel heat sink [PDF]

open access: yesCase Studies in Thermal Engineering, 2019
This article presents a combined experimental and computational study to investigate the flow and heat transfer in a Y-fractal microchannel. Experimental apparatus was newly built to investigate the effect of three different control factors, i.e., fluid ...
Lixiao Liang   +8 more
doaj   +4 more sources

On conjugate heat transfer in microchannel heat sinks

open access: yesInternational Journal of Thermofluids
This work aims to study the anisotropic thermal impacts of employing liquid metal fluids including Na and NaK as coolants in two metallic microchannel heat sinks. The two studied microchannel heat sinks have aspect ratios of 1 and 2 while their hydraulic
Nima Fathi   +4 more
doaj   +2 more sources

Numerical Analysis of Microchannels Designed for Heat Sinks [PDF]

open access: yesNanomanufacturing and Metrology, 2021
AbstractConjugate heat transfer is numerically investigated using a three-dimensional computational fluid dynamics approach in various microchannel geometries to identify a high-performance cooling method for piezoelectric ceramic stacks and spindle units in high-precision machines.
Matthew McCormack   +2 more
openaire   +2 more sources

Characteristics of MEMS Heat Sink Using Serpentine Microchannel for Thermal Management of Concentrated Photovoltaic Cells

open access: yesIEEE Access, 2023
This work explains the simulation-based study to understand the thermohydraulic characteristics (thermal resistance and pumping power) of a MEMS heat sink using serpentine microchannels employed for thermal management of concentrated photovoltaic cells ...
Dinumol Varghese   +2 more
doaj   +1 more source

Performance Improvement of a Double-Layer Microchannel Heat Sink via Novel Fin Geometry—A Numerical Study

open access: yesEnergies, 2021
This study proposes a novel design having dense fins with lesser thickness at the upper layer and comparatively spare fins with greater thickness in the lower layer to further improve the overall thermal performance of a double-layer microchannel heat ...
Yong-Dong Zhang   +4 more
doaj   +1 more source

Design and Analysis of Microchannels for Heat Dissipation of High-Energy VCSELs Based on Laser 3D Printing

open access: yesApplied Sciences, 2022
For the problem of high waste heat in the active area of high-power VCSEL arrays and the difficulty of heat dissipation, we took advantage of laser 3D printing technology and combined it with the relevant principles of fluid-structure coupling, three ...
Anru Yan   +3 more
doaj   +1 more source

Thermal–Hydrodynamic Behavior and Design of a Microchannel Pin-Fin Hybrid Heat Sink

open access: yesMicromachines, 2022
A three-dimensional convective heat transfer model of a microchannel pin-fin hybrid heat sink was established. Considering the non-uniform heat generation of 3D stacked chips, the splitting distance of pin-fins was optimized by minimizing the maximum ...
Xiaonan Guan   +5 more
doaj   +1 more source

Hydrothermal Investigation of a Microchannel Heat Sink Using Secondary Flows in Trapezoidal and Parallel Orientations

open access: yesEnergies, 2020
Thermal performance enhancement in microchannel heat sinks has recently become a challenge due to advancements in modern microelectronics, which demand compatibility with heat sinks able to dissipate ever-increasing amounts of heat.
Safi Ahmed Memon   +3 more
doaj   +1 more source

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