The presence of particles in liquid-solid fluidized beds enhances the bed heat transfer, because the movement of the particles leads to an increased turbulence in the system. Moreover, the violent movement of the particles has a positive effect on fouling of the heat transfer surface. The aim of this investigation was to perform systematic measurements of bed voidage and heat transfer coeff...

This paper reports a novel cooling method for a local high-temperature block in an integrated circuit, which is called a “hotspot”. The method is to cool the chip in out-of-plane (3-D) direction to overcome efficiency limit of traditional horizontal (2-D) cooling. Our result indicates that high-temperature (over 180 °C) circuit block such as a phase-locked-loop (PLL), which is a performance lim...

Liquid/gas flows are experimentally investigated in 200 and 525 mm square microchannels made of glass and silicon. Liquid and gas are mixed in a cross-shaped section in a way to produce steady and homogeneous flows of monodisperse bubbles. Two-phase flow map and transition lines between flow regimes are examined. Bubble velocity and slip ratio between liquid and gas are measured. Flow patterns ...

The analysis in this communication addresses the unsteady MHD flow of tangent hyperbolic liquid through a vertical plate. model on mass and heat transport is set up with Joule heating, generation, viscous dissipation, thermal radiation, chemical reaction Soret-Dufour form partial differential equations (PDEs). PDEs are simplified into dimensionless by utilizing suitable quantities. solved spect...