Transport by Belt Conveyor: Power Tab

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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

 

Power Type
Indicates the power type that is used by the operation. Click on the list box to bring up a list of available power types in order to select one.

<Std Power>

Any Power Type

Specific Power (kW/(kg/h)-m)
The power consumed for the operation per feed loading rate and per belt length.

0.0

Positive

Total Power (kW)
The total power consumed for the operation (per cycle).

2.0

Positive

Power Per Unit (kW)
The power consumed for the operation per equipment unit.

0.0

Positive

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

Specification Choices / Comments

The following list describes the available specification choices in this tab; for more details on how these are implemented, see Transport by Belt Conveyor: Modeling Calculations.

Duration Options...

In Rating Mode, you can set the process time (and the setup time), allow the process time to be calculated (based on loading rate), or allow the duration to match exactly the duration of another operation either in the same procedure or in another procedure. In Design mode, you must either specify the process time (and the setup time) or allow the duration to match exactly the duration of another operation (either in the same procedure or in another procedure) in order for the program to calculate the required power (per step and per unit).

If you choose to match the duration of this operation with the duration of another operation, you introduce a master-slave relationship between the two operations. The program will match the setup-time, the process time and the turnaround time of this pumping operation (the ‘slave’) with the corresponding times of the reference operation (the ‘master’ operation). For more on master-slave relationship, see The Scheduling Tab.