The Impact of Nano Copper Oxide Coating on Glass Beads for Enhancing Heat Transfer in Gas-Solid Fluidized Beds

This work studied heat transfer enhancement in gas-solid fluidized beds by applying copper oxide nanocoating to glass beads. A fluidized bed column with a diameter of 10 cm and a length of 150 cm was used, A heat element placed in the center of the column at a height of 10 cm from the air distributor. The experimental methodology involves coating glass beads (200 and 400 μm) with nano copper oxide using settling deposition method, a characterization using XRD, TEM, BET, SEM, and EDX techniques for the coated beads. A fluidized bed experiment for the coated glass beads showed a significant increase in fluidized bed performance by 23% demonstrating the potential of nanocoating in improving the efficiency of fluidized bed systems for industrial applications. The research also includes conducting analysis using Minitab’s Response Surface Methodology (RSM) for studying the remaining parameter on the fluidized bed performance.