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Thermal Management of Transient Power Spikes in Electronics—Phase Change Energy Storage or Copper Heat Sinks?
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A transient thermal analysis is performed to investigate thermal control of power semiconductors using phase change materials, and to compare the performance of this approach to that of copper ...
Effects of Dissolved Air on Subcooled Flow Boiling of a Dielectric Coolant in a Microchannel Heat Sink
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The effects of dissolved air in the dielectric liquid FC-77 on flow boiling in a microchannel heat sink containing ten parallel channels, each 500μm wide and 2.5mm deep, were experimentally ...
Boiling Heat Transfer and Flow Regimes in Microchannels—A Comprehensive Understanding
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Flow boiling in microchannels has been investigated extensively over the past decade for electronics cooling applications; however, the implementation of microchannel heat sinks operating in the ...
Melting of Phase Change Materials With Volume Change in Metal Foams
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Melting of phase change materials (PCMs) embedded in metal foams is investigated. The two-temperature model developed accounts for volume change in the PCM upon melting. Volume-averaged mass and ...
Influence of Bulk Fluid Velocity on the Efficiency of Electrohydrodynamic Pumping
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The efficiency of conversion of electrical power into fluidic power in an electrohydrodynamic (EHD) pump depends on the bulk fluid velocity. An analytical formulation is developed for calculation ...
Cooling Performance of Arrays of Vibrating Cantilevers
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Piezoelectric fans are vibrating cantilevers actuated by a piezoelectric material and can provide heat transfer enhancement while consuming little power. Past research has focused on feasibility ...
Flow Boiling Heat Transfer in Microchannels
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Flow boiling heat transfer to water in microchannels is experimentally investigated. The dimensions of the microchannels considered are 275×636 and 406×1063μm2. The experiments are conducted ...
A Study of Critical Heat Flux During Flow Boiling in Microchannel Heat Sinks
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The cooling capacity of two-phase transport in microchannels is limited by the occurrence of critical heat flux (CHF). Due to the nature of the phenomenon, it is challenging to obtain reliable ...
Local Heat Transfer Distributions in Confined Multiple Air Jet Impingement
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Heat transfer from a discrete heat source to multiple, normally impinging, confined air jets was experimentally investigated. The jets issued from short, square-edged orifices with still-developing ...
Dynamic Response Optimization of Piezoelectrically Excited Thin Resonant Beams
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Piezoelectrically excited, resonant, elastic beams find wide use as piezoelectric fans, optical choppers, MEMS sensors, and piezoelectric motors. The devices consist of either one piezoelectric ...