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Fluidised Bed Formation
Description & Specification
Fluidised Bed Formation
Categories:
Fluid Mechanics Teaching Equipment
Technical Specifications
The right-side test tank is similar to construction to the left-side one. An air flow generated by a compressor flows through it.
Manometers are mounted on both test tanks to measure the pressure loss. The flow rates are adjusted by way of valves, and can be read from flow meters. The test tanks are removable. This makes it easy to change the bulk solid filling.
A diaphragm pump delivers water from a storage tank into the bottom of the left side test tank. The water flows upwards through a porous sintered-metal plate. On the sintered At the time of the water is less than the so-called fluidisation velocity, the flow only passes through the fixed bed. Transport is only possible with the experimental unit. A filter at the top of the test tank holds these particles back. Water flows back into the storage tank. At higher velocities the bed is loosened to such an extent that individual solid particles are suspended By the fluid. If the velocity is increased further, particles are carried out of the fluidised bed: transport takes place.
Glass-shot beads in a range of particle sizes are provided as the bulk solid filling.
Specification:
Investigation of fluidised bed formation of solids in air and water
Both test tanks removable for filling
Storage tank with diaphragm pump for water supply
Adjustment of flow rate for both media by valves and flow meter
2 transparent test tanks to observe fluidised bed formation in air/water
1 manometer per tank to measure the pressure loss through each test tank
1 steel rule per tank to measure the change in height of the fluidised beds
Diaphragm compressor with compressed air accumulator for compressed air supply
Technical data:
Tanks
Water storage tank: approx. 4L
Compressed air accumulator: 2L
Diaphragm pump (water)
Max. flow rate: 1,7L/min
Max. head: 70m
Diaphragm compressor (air)
Max. volumetric flow rate: 39L/min
Max. pressure: 2bar
2 test tanks
Length: 550mm
Inside diameter: 44mm
Scale division: 1mm
Material: PMMA
Measuring ranges
Pressure: 0…500mmWC (water)
Pressure: 0…200mmWC (air)
Flow rate: 0,2…2,2L/min (water)
Flow rate: 4…32L/min (air)
Height: 0…500mm
230V, 50Hz, 1 phase
230V, 60Hz, 1 phase; 120V, 60Hz, 1 phase.
