Fluidised bed formation

If liquids or gases flow through a layer of solid particles and the fixed bed is loosened to such an extent that the solid particles can move freely, the fixed bed is transformed into a fluidised bed. The pressure loss of the fluid that is flowing through can be used to characterise a fluidised bed. Typical areas of application of fluidised beds include the drying of solids or roasting and combustion processes. Learn about Fluidised bed formation specifications for optimal educational outcomes..

• investigation of the transformation from fixed bed to fluidised bed
• experiments with air and water next to each other
• both tanks removable
• scales on the tanks to measure the height of the fluidised bed
• water supply via storage tank with diaphragm pump
• compressed air supply via compressed air accumulator and diaphragm compressor
• volumetric flow rate for air adjustable via valves
• flow rate for water adjustable via speed on the diaphragm pump
• measurement of pressure loss using electronic, hand-held unit