Turbine selection varies with available head & discharge- each operates most effectively in a certain pressure and flow range- Many times the turbine typese are characterized but their effective “head range”- The table below shows generally accepted values by turbine types:
|
Turbine Type
|
Head(H) Range in Meters (vertical fall of water)
|
Head(H) Range in Feet
|
|
Pelton Wheel
|
50 < H < 1300
|
150 < H < 5000
|
|
Cross Flow
|
3 < H < 250
|
9 < H < 750
|
|
Kaplan
|
2 < H < 40
|
6 < H < 125
|
|
Propeller
|
2 < H < 40
|
6 < H < 125
|
