Pump Pressure Specification Choices
Three types of pressure specifications are available for the pump unit operation.
Outlet Pressure : The pressure of the outlet stream.
Pressure Rise : The amount by which the outlet pressure exceeds the inlet pressure. Negative values are not allowed for this choice.
Pressure Ratio : The ratio of outlet pressure/inlet pressure. Values for this parameter must be 1.0 or greater.
If the pump has multiple feed streams, then the inlet pressure is taken to be the lowest pressure of all the feed streams.
Usage
Select a pressure specification parameter by clicking on the appropriate button and entering the value in the corresponding data entry field.
Alternatively, instead of entering a value for the selected pressure specification choices, the numeric value may be referenced using the Define system relative to any available unit operation or stream parameter calculated elsewhere in the simulation. See Pump Parameters Available for Cross-Referencing for more details.
Related Topics