応用機械工学ジャーナル

概要

Buoyancy Induced Natural Convective Heat Transfer In Prismatic Container Filled With Transformer Oil - Tio2 by Vibration Effect on the Cylindrical Surface

B.SUDHAKARA RAO

The main aims of the buoyancy induced natural convection of the heat transfer in a vertical brass cylindrical surface by using fluids Such as the water, engine oil, ethylene, ethylene glycol, and transformer oil have a lower thermal conductivity of fluid compared to the solid brass cylindrical rod. The fluid maintains the uniform heat flux condition observed in experimentally. The different volume fractions are 0, 0.05, 0.15, 0.2% of volume fractions with various heat inputs 30W, 40W, 50W and 60W. The thermal conduction was observed in Tio2 Nano fluids with transformer oil after the study state condition of Nano fluid and SDS solution is mixed into the Nano fluid and it is avoided into the sedimentation of Nanoparticles in the bottom surface will be increased in temperature of the Nano fluid onward the axial direction to the outside surface of the boundary layer. The temperature increases in both the axial direction and radial direction as shown in the graph. It is recognized that the increases in temperature along the axial direction and decrease the temperature in the radial direction. Its final thermal conduction is obtained. Experimentally gives to various heat inputs 30W, 40W, 50W, 60W, and its correlated by Nusselt number (Nu) and Rayleigh number (Ra) at uniform heat flux. Experimentally observed that the vibrator is placed on the cylindrical surface temperature is higher at The bottom portion of the cylinder and it goes on the top portion and fluid maintain at Study condition and its given frequency ranges are 100Hz-190Hz.