Page 271 - Handbook of Energy Engineering Calculations

required power output.

Calculation Procedure:

1. Determine the type of hydraulic turbine suitable for this site
Enter Fig. 1 on the left at the available head, 65 ft (20 m), and project to the
right to intersect the vertical projection from the required turbine output of
10,000 kW (10 MW). These two lines intersect in the standardized tubular

unit region. Hence, such a hydroturbine will be tentatively chosen for this
site.

FIGURE 1 Traditional operating regimes of hydraulic turbines.
New designs allow some turbines to cross traditional boundaries.
(Power.)

2. Check the suitability of the chosen unit
Enter Table 2 at the top at the operating head range of 65 ft (20 m) and

project across to the left to find that a tubular-type hydraulic turbine with
fixed blades and adjustable gates will produce 0.25 to 15 MW of power at 55
to 150 percent of rated head. These ranges are within the requirements of this