Centrifugation: Oper. Conds Tab

CentrifugationOperConds.jpg
Variable Definitions, Ranges and Default Values

The following table shows a brief description of the variables appearing in this tab. The table also displays their default values and their generally acceptable range:

Variable

Default Value

Range

◙ Limiting Oil Globule Min Diameter (microns)
The limiting diameter for the separation of the oil globules.

20.00

Positive

◙ Limiting Oil Globule Density (kg/m3)
The limiting oil globule density.

900.00

Positive

◙ Limiting Solid Particle Min Diameter (microns)
The limiting diameter for the separation of the solid particles.

1.0

Positive

◙ Limiting Solid Particle Density (kg/m3)
The limiting solid particle density.

1030.0

Positive

○ Continuous Liquid Phase Density (kg/m3)
The density of the continuous liquid phase.

1000.0

Positive

○ Continuous Liquid Phase Viscosity (cP)
The viscosity of the continuous liquid phase.

1.5

Positive

○ Sedimentation Efficiency (%)
The sedimentation efficiency.

0.0

Positive

● Volumetric Throughput (L/min)
The volumetric flowrate of the inlet stream.

0.0

Positive

○ Setup Time (min)
The amount of time (per cycle) spent before each operation is carried out in preparation for the actual execution of the operation. It may involve actions like cleaning, vacuuming, setting up of equipment, etc. which the user opted not to model explicitly.

0.0

Positive

◙ Centrifugation Time (h)
The actual duration of the operation (per cycle). Note that this value can only be calculated in Rating Mode.

4.0

Positive

Symbol Key: ○ User-specified value (always input); ● Calculated value (always output); ◙ Sometimes input, sometimes output

Specification Choices / Comments

A centrifuge can be sized to remove particles that are heavier than the solvent (usually water), oil/fat globules that are lighter than the solvent or both. The following list describes the available specification choices in this tab; for more details on how these are implemented, see Centrifugation: Modeling Calculations.

•Duration Options...

In Rating Mode (specified equipment size), the user has the option of setting either the Process Time or the Volumetric Throughput.