Centrifugal Compressor: 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

◙ Power The total power required by the compressor.	0.0 kW	Positive
◙ Max Power The maximum power that a unit of this type is available for purchase in the market.	3000.0 kW	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 Power and the system computes the Number of Units and the Power. See also Compression: Modeling Calculations.

Sizing: Rating Mode

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

Costing

Equipment purchase cost is based on the total power consumed and material of construction. It is supplied by the built-in model assuming as material of construction CS and with a minimum costing power of 50 kW.

For more information on this equipment, see Compressor

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