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Products | Process Control and Process Engineering | Mechanical Process Engineering | CE 220

CE 220

Fixed and Fluidised Bed Apparatus

Technical Description

In fluidised beds, solid particles are held in suspension by a flowing medium. As a result this mixture takes on the character of a liquid, both in respect of fluid mechanics and thermodynamics. Investigations can be performed on fixed and fluidised particle beds using this apparatus. For this purpose the apparatus contains two vertical cylinders made of Plexiglass as experimental sections. Air flows through one of the cylinders, water through the second. An air compressor with pressure reservoir is fitted to the unit for the air supply, an internal water circuit powered by a diaphragm pump provides the flow of water. The flow rates can be determined with very precise variable-area flowmeters. Two different differential pressure manometers are used to measure the pressure drop across the fluidised beds.

Learning Objectives / Experiments

· Observation of fluidisation process
· Influence of particle size on fluidisation process
· Measurement of pressure drop with air as flowing medium
· Measurement of pressure drop with water as flowing medium
· Comparison of fluid permeability of different beds
· Determination of loosening speed
· Relationship between flow rate and height of fluidised bed
· Separation of mixtures of varying particle sizes, sedimentation

Features

Investigations on fixed and fluidised particles beds
Observation of the fluidisation process in different media (air and water)
Clearly laid out benchtop unit
Only power supply necessary

Alternative products

CE 117 -- Permeability & Fluidisation Studies Apparatus
WL 225 -- Fluidisation and Heat Transfer

Specification

[1] Self-contained benchtop unit to observe and to study fluidised beds
[2] Observation of fluidisation processes in different media (air and water)
[3] Investigations on fixed and fluidised particle beds
[4] 2 tubes made of Plexiglass as test tanks, 550mm, Ø50/44mm, approx. 1.2ltr
[5] Diaphragm double compressor for air supply, max. 39ltr/min, max. 2.0bar
[6] Compressed air reservoir 2ltr, max. 10bar
[7] Diaphragm pump 1.8ltr/min at 1.0bar
[8] Single tube manometer for air 0...2.0kPa
[9] 230V, ~50Hz

Technical Data

Test tanks: 550mm, Ø50/44mm, Plexiglass, approx. 1.2ltr, scale 0...500mm
Diaphragm double compressor:
max. 39ltr/min, max. 2.0bar
Compressed air reservoir: 2ltr, max. 10bar
Single tube manometer (air): 0...2.0kPa
Diaphragm pump: 1.8ltr/min at 1.0bar
2-tube manometer for water: 0...500mmWC
Flow meter for air: 2...30ltr/min
Flow meter for water: 0.2...2ltr/min

Dimensions and Weight

l x w x h : 750 x 650 x 1000 mm
Weight : approx. 65 kg

Connections

230V, ~50Hz

Scope of Delivery

1 apparatus, complete,
1 instruction manual

Order Details

083.22000 CE 220 Fixed and Fluidised Bed Apparatus