Determination Of The Settling Velocity
Categories: Engineering Lab EquipmentThe settling velocity of solids in fluids is an important factor in fluid mechanics and process engineering. For example, the settling velocity is the decisive factor when planning sedimentation tanks...
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Description
The settling velocity of solids in fluids is an important factor in fluid mechanics and process engineering. For example, the settling velocity is the decisive factor when planning sedimentation tanks for water treatment.
HM 135 contains two transparent cylinders for comparative examinations. The two cylinders enable comparing the influence of the sphere diameter, sphere density and different fluids on the settling velocity. Guide tubes in the cover of the two cylinders enable safe insertion of the sphere. Two O-rings per cylinder mark the measuring section. At the lower end of the cylinder there is a sluice through which the spheres can be removed again without significant loss of fluid.
A stopwatch measures the sedimentation time. Two areometers with different measuring ranges enable the determination of the fluid densities.
Learning Objectives/Experiments
Influence of the following parameters on the settling velocity of spheres:
Diameter of the sphere
Density of the sphere
Density of the fluid
Viscosity of the fluid
Features
Settling velocity of spheres of various diameters and densities
Specification
Experimental unit to determine the settling velocity of different spheres
2 transparent cylinders
Marking of the measuring section
Cover with guide tube to insert the sphere
Sluice to remove the spheres from the cylinder
10 spheres of various densities and diameters
2 areometers to determine the density of the fluids
Stopwatch to measure the sedimentation time
Technical data
2 cylinders
inner Ø: 92mm each
height: 1330mm each
sink height: 1000mm each
Spheres
aluminium (density: 2,7kg/dm3)
2x 5mm Ø
2x 10mm Ø
polyoxymethylene (POM), density: 1,41kg/dm3
2x 5mm Ø
2x 10mm Ø
polyamide (PA), density: 1,13kg/dm3
2x 10mm Ø
Measuring ranges
density: 1x 0,8…1,0kg/dm3, 1x 1,0…1,2kg/dm3
LxWxH: 720x640x1650mm
Weight: approx. 45kg
quick overview :
The settling velocity of solids in fluids is an important factor in fluid mechanics and process engineering. For example, the settling velocity is the decisive factor when planning sedimentation tanks for water treatment.
HM 135 contains two transparent cylinders for comparative examinations. The two cylinders enable comparing the influence of the sphere diameter, sphere density and different fluids on the settling velocity. Guide tubes in the cover of the two cylinders enable safe insertion of the sphere. Two O-rings per cylinder mark the measuring section. At the lower end of the cylinder there is a sluice through which the spheres can be removed again without significant loss of fluid.
A stopwatch measures the sedimentation time. Two areometers with different measuring ranges enable the determination of the fluid densities.
Learning Objectives/Experiments
Influence of the following parameters on the settling velocity of spheres:
Diameter of the sphere
Density of the sphere
Density of the fluid
Viscosity of the fluid
Features
Settling velocity of spheres of various diameters and densities
Specification
Experimental unit to determine the settling velocity of different spheres
2 transparent cylinders
Marking of the measuring section
Cover with guide tube to insert the sphere
Sluice to remove the spheres from the cylinder
10 spheres of various densities and diameters
2 areometers to determine the density of the fluids
Stopwatch to measure the sedimentation time
Technical data
2 cylinders
inner Ø: 92mm each
height: 1330mm each
sink height: 1000mm each
Spheres
aluminium (density: 2,7kg/dm3)
2x 5mm Ø
2x 10mm Ø
polyoxymethylene (POM), density: 1,41kg/dm3
2x 5mm Ø
2x 10mm Ø
polyamide (PA), density: 1,13kg/dm3
2x 10mm Ø
Measuring ranges
density: 1x 0,8…1,0kg/dm3, 1x 1,0…1,2kg/dm3
LxWxH: 720x640x1650mm
Weight: approx. 45kg
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