horse power of the wheel.
The total power of the stream due to the area of the blade equals the
Square of the velocity of the stream
------------------------------------ ×
Twice gravity (64.33)
volume of water in cubic feet per second × 62.5 (weight of 1 C') = the value or gross effect in pounds falling 1 foot per second. This sum divided by 550 = horse power. Thus, as per last example,
due to the area of the blades of the water wheel.
For the efficiency of this class of wheel, with slightly curved and thin blades, divide the horse power of the wheel by the horse power of the current area, equals the percentage of efficiency.
As in the last case,
0.468 / 1.32 = 0.35½
per cent. efficiency of the water wheel.