In this numerical work, heat transfer characteristics of humid air in a rectangular channel as solar heater equipped with V-shaped ribs has been investigated. The impacts geometrical parameters proposed such height, pitch, and angle relative to flow direction, well humidity Reynolds number inlet on thermal performance have evaluated. results achieved using commercial Computational Fluid Dynamic...

Investigations for the melt growth gallium-antimonide (GaSb) semiconductor crystals are underway at the US Air Force Research Laboratory at Hanscom Air Force Base by the vertical gradient freeze (VGF) method utilizing a submerged heater. Electromagnetic stirring can be induced in the gallium-antimonide melt just above the crystal growth interface by applying a weak radial electric current in th...

A planar Bi–Sb multijunction thermal converter was fabricated on the LPCVD Si3N4/SiO2/Si3N4-diaphragm, prepared by silicon bulk micromachining, which thermally isolated a bifilar Ptor NiCr-heater and the hot junctions of a Bi–Sb thermopile from the silicon substrate. The voltage responsivity, the ac–dc transfer difference, and the fluctuations of the output thermoelectric voltage and heater res...

Hybrid air heater is a device taking advantage of two or more energy sources directly indirectly for heating air. This study aims to analyze and exergy hybrid heater. It assumed that no thermal gradient exists along glass thickness one-directional variation temperature in flow direction capacity glass, absorber plate, insulations are negligible. To avoid food oxidation dryers, effects fluid suc...

The present study deals with the thermal performance evaluation and economic analysis of a low-cost modified flat-plate solar water heater (SWH) with a parallel two-side serpentine flow. This is a unique inexpensive and easily fabricated SWH having better thermal efficiency than those investigated by earlier authors. The solar water heating system is having parallel two-side serpentine arrangem...