This apparatus is designed to study and understand the flow of a liquid through a bed of solid particles, but it can also be used for filtration tests on real beds and waters. A bed of granular medium (usually sand, glass beads, etc…) is placed in a vertical clear tube through which water can be made to flow in either a downwards or upwards direction. Water flow comes from a constant head tank connected with the water network and its rate is indicated by a variable area flowmeter. Pressure drop across the bed can be measured either by a water manometer or a mercury manometer.
TRAINING PROGRAM:
• Pressure drops across solid beds
• Verification of Kozeny’s equation
• Fluidization of a solid bed
• Measurement of permeability of a solid bed
• Attrition tests
TECHNICAL CHARACTERISTICS:
• Framework of AISI 304 stainless steel
• Test section tube: 44 mm x 550 mm
• Flowmeter: 4-48 l/h
• Differential water manometer: 0 to 500 mm
• Differential mercury manometer: 0 to 500 mm
• Bed of glass beads
• Constant head tank of AISI 304 stainless steel
