Shredder (Bulk Flow)

Overview

	Size / Design Variable	Mass Throughput
	Costing Variable (Built-in Model)	Mass Throughput
	Costing Variable (User-Defined Model)	Mass Throughput in kg/h
	Emissions Port	No
	Hosts	Shredding (Bulk Flow) Procedure

A Shredder (Bulk Flow) is used to represent an equipment resource typically used to host shredding procedure with a main objective to shred bulk solids to a much smaller size. The procedure can be executed in a batch or continuous mode.

Shredder (Bulk Flow): Equipment Tab

See Grinder (Bulk Flow): 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

◙ Rated Throughput The total rated mass throughput.	0.0 kg/h	Positive
◙ Max Throughput The maximum mass throughput that a unit of this type is available for purchase in the market.	10,000 kg/h	Positive

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

Sizing: Design Mode

In Calculate (Design Mode), the user specifies the Maximum Throughput and the system computes the Number of Units and the Rated Throughput. If the operating throughput exceeds the maximum throughput, then the system assumes multiple identical units operating in parallel with an operating throughput of less than the maximum.

Sizing: Rating Mode

In User-Defined (Rating Mode), the user specifies the Number of Units and the Rated Throughput. If the operating throughput exceeds the rated throughput of the step (which is equal to the rated throughput of each unit times the number of units), a warning message is displayed advising the user to increase the number of units or reduce the operating throughput.

Costing

Equipment purchase cost is based on the mass throughput and material of construction. It is supplied by the built-in model assuming as material of construction CS.