Rz. Qian et Sc. Saxena, HEAT-TRANSFER FROM AN IMMERSED SURFACE IN A MAGNETOFLUIDIZED BED, International communications in heat and mass transfer, 20(6), 1993, pp. 859-869
Heat Transfer from an immersed horizontal cylindrical heat-transfer pr
obe in an air-fluidized bed of iron shots exposed to an external magne
tic field has been investigated. The probe is equipped to provide both
total and local heat-transfer coefficients at different axial and ang
ular positions. The fluidizing-air velocity and external magnetic-fiel
d intensities are varied to bring about different fluidization regimes
starting from fixed-bed, magnetically stabilized-bed, partially stabi
lized- or bubbling-bed, and frozen-bed regimes. The nature of heat tra
nsfer is interpreted in all these regimes and conditions are identifie
d where advantages of magnetic bed stabilization can be enjoyed withou
t loss of heat-transfer rates.