Nutsche Filter: Equipment Tab

Variable Definitions, Ranges and Default Values

The following table shows the meaning of the variables appearing in this tab, as well as their default values and their generally acceptable range. Note that due to the manner by which the variables are used by the sizing and costing equations, the range of acceptable values may be further reduced.

Variable	Default Value	Range

◙ Filter Area The area of the Nutsche filter	1.0 m²	Positive
◙ Max. Filter Area The maximum area of the Nutsche filter	6.0 m²	Positive
○ Vessel Height The height of the Nutsche filter vessel	0.5 m	Positive
○ Vessel Volume The volume of the Nutsche filter vessel	500.0 L	Positive
○ Equipment Heat Capacity (mCp) The product of total mass times the specific heat capacity of the vessel.	0 kcal/°C	Positive.
○ Filter Type The filter type for costing calculations.	Open	Open/ Enclosed

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

Sizing

In Calculate (Design Mode), the user specifies the Maximum Filter Area and the system computes the Number of Units and the Filter Area.

In User-Defined (Rating Mode), the user specifies the Number of Units and the Filter Area.

Costing

The equipment purchase cost is based on the costing filter area. Averaged data from vendors were used to estimate the purchase cost of nutsche filters. Material cost factors for SS316 and Hastelloy are available.

For more information on this equipment, see Nutsche Filter.

For information on the left-hand side variables and options, see Equipment Data Dialog: Equipment tab.