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Heat sink optimization with application to microchannels
IEEE Transactions on Components, Hybrids, and Manufacturing Technology, 1992The equations governing the fluid dynamics and combined conduction/convection heat transfer in a heat sink are presented in dimensionless form for both laminar and turbulent flow. A scheme presented for solving these equations permits the determination of heat sink dimensions that display the lowest thermal resistance between the hottest portion of the
R.W. Knight +3 more
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Optimum Design of Microchannel Heat Sinks
Microelectromechanical Systems (MEMS), 1996Abstract Analyses have been performed to obtain momentum and thermal characteristics in microchannel heat sinks. The applicability of existing correlations for friction factor and Nusselt number is investigated. The study revealed that existing correlations based on the analytical results can predict the heat sink performance to within ...
Choquette, S. F. +3 more
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Electroosmotically enhanced microchannel heat sinks
Journal of Mechanical Science and Technology, 2009The present study investigates the microchannel heat sink for pure electroosmotic, pressure-driven, and mixed (electroosmotic and pressure-driven) flows. A three-dimensional numerical analysis is performed for electroosmotic and mixed flows. Electroosmotic flow (EOF) induced in an ionic solution in the presence of surface charge and electric field is ...
Afzal Husain, Kwang-Yong Kim
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Metallic Nanoemulsion for Microchannel Heat-Sink
ASME 2016 14th International Conference on Nanochannels, Microchannels, and Minichannels, 2016Galinstan is a eutectic alloy of gallium, indium, and tin, of which thermal conductivity is ∼27 times higher than that of water, while the dynamic viscosity is only twice. Thus, heat transfer coefficient can be remarkably enhanced with a small penalty of pumping power.
Yoshikazu Hayashi +3 more
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Measurements of heat transfer in microchannel heat sinks
International Communications in Heat and Mass Transfer, 2000Abstract The paper presents new experimental measurements for pressure drop and heat transfer coefficient in microchannel heat sinks. Tests were performed with devices fabricated using standard Silicon 100 wafers. Two different channel patterns were studied.
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Heat transfer of Al2O3 nanofluids in microchannel heat sink
AIP Conference Proceedings, 2017Microchannel heat sink creates an innovative cooling technology to remove large amount of heat from small area. Recently, nanotechnology gain interest to explore the microchannel cooling benefits of nanofluids as working fluid. The objective of this study is to investigate the effect of heat transfer to Al2O3 nanofluids after used as working fluid in ...
A. A. Razali, A. Sadikin, S. A. Ibrahim
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Heat Transfer of a Double Layer Microchannel Heat Sink
Applied Mechanics and Materials, 2013A numerical study is conducted to predict the effects of physical parameters of a double layer microchannel heat sink on heat transfer. The physical parameters investigated are the channel height and channel width for different flow orientation at the upper and lower channels.
Wong Kok Cheong +1 more
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Microchannel Heat Sinking: Analysis and Optimization
2009The present study reviews numerical optimizations of microchannel heat sink with the help of surrogate analysis. The design variables are decided from geometric and shape parameters that influence the performance of the microchannel heat sink. The basic surrogate models are explored with three-dimensional numerical analysis.
Afzal Husain, Kwang-Yong Kim
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Topology Optimization of Manifold Microchannel Heat Sinks
2020 19th IEEE Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems (ITherm), 2020The manifold microchannel (MMC) heat sink has been widely studied for liquid-cooling of power-dense electronic components. Conventionally, thermal-fluid performance of an MMC heat sink is analyzed via unit cell simulations and designed by varying the rectangular fin and channel geometries, namely size optimization.
Yuqing Zhou +2 more
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Microchannel Heat Sink with Enhanced Heat Transfer Performance by Laser Process
2018 IEEE 13th Annual International Conference on Nano/Micro Engineered and Molecular Systems (NEMS), 2018The heat transfer performance of microchannel heat sink which is fabricated by Nanosecond laser machining (NLM) is investigated. The experiment data suggest that the heat transfer performance of microchannel heat sink (MHS) processed by NLM is superior to that by Deep Reactive Ion Etching (DRIE).
Tao Wang +8 more
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