Results 171 to 180 of about 1,322 (222)

Flow Boiling in a Microchannel Heat Sink

Heat Transfer, Part A, 2005
Flow boiling heat transfer in a microchannel heat sink is experimentally investigated. The microchannels considered are 275 μm wide and 636 μm deep, and the experiments are conducted at inlet water temperatures in the range of 66 to 95°C and mass fluxes of 341 to 936 kg/m2s.
Dong Liu, Suresh V. Garimella
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Heat sink optimization with application to microchannels

IEEE Transactions on Components, Hybrids, and Manufacturing Technology, 1992
The 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, D.J. Hall, J.S. Goodling, R.C. Jaeger   +3 more
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Electroosmotically enhanced microchannel heat sinks

Journal of Mechanical Science and Technology, 2009
The 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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Two-Phase Microchannel Heat Sinks: Theory, Applications, and Limitations

Journal of Electronic Packaging, Transactions of the ASME, 2011
Boiling water in small channels that are formed along turbine blades has been examined since the 1970s as a means to dissipating large amounts of heat.
Issam Mudawar, Mudawar Issam
exaly   +2 more sources

Metallic Nanoemulsion for Microchannel Heat-Sink

ASME 2016 14th International Conference on Nanochannels, Microchannels, and Minichannels, 2016
Galinstan 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, Gordon Yip, Yoon Jo Kim, Jong-Hoon Kim   +3 more
openaire   +1 more source

Measurements of heat transfer in microchannel heat sinks

International Communications in Heat and Mass Transfer, 2000
Abstract 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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Topology Optimization of Manifold Microchannel Heat Sinks

2020 19th IEEE Intersociety Conference on Thermal and Thermomechanical Phenomena in Electronic Systems (ITherm), 2020
The 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, Tsuyoshi Nomura, Ercan M. Dede   +2 more
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Heat transfer of Al2O3 nanofluids in microchannel heat sink

AIP Conference Proceedings, 2017
Microchannel 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, 2013
A 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, Fashli Nazhirin bin Ahmad Muezzin   +1 more
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Microchannel Heat Sinking: Analysis and Optimization

2009
The 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
openaire   +1 more source