An image‐carrying fiber optic probe to investigate solids distribution around an immersed surface in a gas‐fluidized bed

Particle dynamics near the surface of a horizontal tube in a gas‐fluidized bed

“…The heat transfer tube is simulated by a glass tube 50.8 mm in diameter, installed horizontally in the bed test section a t a height of 28.0 cm above the distributor plate. The image carrying fiber optic probe, hereafter referred to as the borescope, the external light source and the C-mount lens used are the same as in the earlier work of Saxena et al (1987). Kodak EktaPro 1000 motion analysis system is used for photographing, monitoring and recording the particle motion at the tube surface at two angular positions for a range of fluidizing velocities .…”

“…This led Saxena et al (1987) to develop an image carrying fiber optic probe technique to investigate the variation of t, around the periphery of a horizontal tube as a function of superficial fluidizing velocity, U. However, this study was confined to only values of U smaller than 1.1 0 Urn?…”