The cooling tower itself should be modeled as a tank with design data entered through the Tank property grid as shown in Figure 3.
- Elevation should be set to the elevation of the bottom of the basin of the cooling tower.
- Surface Pressure should be set to 0.0 psig if the cooling tower is open to atmosphere. If the cooling tower is pressurized or under vacuum, the pressure (or vacuum) exerted on the surface of the liquid should be entered.
- Liquid Level should be set to the level of the liquid as measured from the bottom of the tank, typically the basin depth (5 feet in the model shown above) for cooling towers.
Figure 3. Tank design data in the property grid.