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Showing 1 to 9 of 9 for “"Microchannel flow"”.
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Microchannel flow fields for polymer electrolyte fuel cells
… conditions, fuel cell component design and flow field design to name a few. The optimisation of the flow field design for water removal has primarily focused on the use of flow channels which are in the minichannel range. This study investigated the use of a microchannel flow field design …
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Surface structure enhanced microchannel flow boiling of low surface tension fluids
Microchannel flow boiling can meet the thermal management requirements of high power and high frequency integrated circuits, but the technology has been limited by the instabilities unique to their length scales. During microchannel flow boiling of water, many of these instabilities have been …
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Numerical investigation into the effects of multiple bubbles in microchannel flow boiling
… thermal management on a smaller contact area. Microchannel heat sinks utilising flow boiling have been shown to produce heat fluxes orders of magnitude higher than those of their macroscale counterparts. Several factors influence the high heat transfer capabilities of the systems such as taking …
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Water management strategies for polymer electrolyte fuel cells (PEFCs) employing microchannel flowfields
… build-up of liquid water in the porous media and flowfield compartments of the fuel cell. The build-up of liquid water inhibits reactant gas transport to the catalyst layer, leading to a phenomenon called flooding. Flooding causes a rapid drop in cell voltage and is detrimental to fuel cell …
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Confined Flow of Attractive Colloidal Suspensions
Attractive particulate fluids flowing through complex confined geometries are frequently used in technological applications. While the flow properties of hard-sphere suspensions in micro-scale geometries have been studied extensively, the effects of interparticle attractions and particle size …
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Microencapsulated phase change materials for thermal energy storage: development, evaluation, and application
… particle suspensions to enhance heat transfer in microchannel flow was examined. Heat transfer was found to increase due to the micromixing effect of particle movement. The MPCM then improves the fluid's effective specific heat capacity due to the latent heat effect. Various forms of PCM were …
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Prediction and mitigation strategies for the transient thermal performance of low thermal resistance microchannel evaporators
Microchannel flow boiling heat transfer offers an effective thermal management solution for high heat flux microelectronic devices such as laser diodes. The high heat transfer rates, nearly isothermal flow conditions, high surface area-to-volume ratios, and lower required pumping powers facilitate …
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Particle modeling of non-equilibrium field emission driven RF microplasmas
… pressures have been investigated for active flow control, micropropulsion and electronic display applications to name a few. The operational voltages for these microplasmas are on the order of kilovolts. When the electric field at the electrodes reaches GV/m or tens of GV/m either due to …