CE 220 Fluidised Bed Formation Didactic Equipment Vocational Education Equipment Fluid Lab Equipment
Investigation of fluidised bed formation of solids in air and water Features - experimental investigation of the fluidisation process - comparison of fluidised bed formation in gases and liquids - pressure loss in fixed beds and fluidised beds Further separate tests on the topic: Pneumatic transport can be carried out with the CE 250 trainer. Learning objectives/experiments - fundamentals of the fluidisation of bulk layers - observation and comparison of the fluidisation process in water and air - pressure loss dependent on -- flow velocity -- type and particle size of the bulk solid - determination of the fluidisation velocity and comparison with theoretically calculated values (Ergun equation) - dependency of the height of the fluidised bed on the flow velocity - verification of Carman-Kozeny equation Specification [1] investigation of the transformation from fixed bed to fluidised bed [2] experiments with air and water next to each other [3] both tanks removable [4] scales on the tanks to measure the height of the fluidised bed [5] water supply via storage tank with diaphragm pump [6] compressed air supply via compressed air accumulator and diaphragm compressor [7] volumetric flow rate for air adjustable via valves [8] flow rate for water adjustable via speed on the diaphragm pump [9] measurement of pressure loss using electronic, hand-held unit Technical data 2 tanks - length: 380mm - inside diameter: 44mm - graduation: 1mm - material: PMMA diaphragm pump (water) - max. flow rate: 1,7L/min - max. head: 70m diaphragm compressor (air) - max. volumetric flow rate: 39L/min - max. pressure: 2bar water storage tank: approx. 5,5L compressed air accumulator: 2L Measuring ranges - pressure: 0...200mmWC - flow rate: 0,2...1,6L/min (water) - volumetric flow rate: 4...33NL/min (air) - height: 25...370mm 230V, 50Hz, 1 phase 230V, 60Hz, 1 phase; 120V, 60Hz, 1 phase UL/CSA optional LxWxH: 750x610x1010mm Weight: approx. 80kg
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