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Study of Hydrodynamics Parameters for Liquid-Solid fluidization Using Semolina Particles
Last modified: 2016-12-01
Abstract
Liquid-Solid fluidization is widely used due to its higher heat and mass transfer rates and has diverse applications in hydrometallurgy, waste water treatment, biochemical processing and food technology. Hydrodynamic study is vital to recognize the Liquid-Solid fluidization which is the ultimate objective of current research work. To achieve the desired results, bed of semolina particles was prepared and various parameters was studied including superficial velocity, minimum fluidizing velocity (Umf), bed expansion and pressure drop. The minimum fluidization velocity was found to be 0.404 mm/sec. It was observed that the minimum fluidization velocity is independent of initial static bed height, whereas, bed expansion varies with initial static bed height. Moreover, semolina particles offer somewhat greater pressure drop due to its sticky characteristics; which eventually became constant once fluidization was achieved.