GPS-X Technical Reference

Blower Cost Sub-Section (Operating Cost Form)
Suspended Growth Models 120
The blower cost sub-section can be accessed by right-clicking on most biological objects
and selecting Input Parameters > Operating Cost. The GPS-X form is shown in Figure
6-7. The available parameters are described below.
Combined blower/motor efficiency: Specifies the overall efficiency of the
mechanical aeration equipment (i.e. blowers, motors, coupling, and gear box).
The default value is 0.7 or 70 % efficiency.
Pressure drop in inlet filters and piping to blower: Specifies the pressure drop
in the inlet filters and piping to the blowers for the purposes of calculating the
wire power supplied to the mechanical aeration equipment. The default value is
1 kPa.
Pressure drop in piping and diffuser downstream of blower: Specifies the
pressure drop in the piping and diffusers downstream of the blowers for the
purposes of calculating the wire power supplied to the mechanical aeration
equipment. The default value is 7 kPa.
Figure 6-7 - Blower Cost Form
GPS-X Technical Reference