The comparison kaplan and francis hydro power turbine is as
under:
1. Efficiency of Kaplan hydro power turbine is higher.
2. Kaplan turbine is more compact in cross-section and has
higher rotational speed to that of francis hydro power turbine.
3. In Kaplan turbine, the water flow is axia and in francis
trubine it is radial.
4. The runner blades in the kaplan turbine is less in
number.
5. Specific speed of Kaplan turbine is 2 to 3 times that of
Fancis turbine.
6. Friction loss in Kaplan turbine is less.
7. Francis turbine requires medium head while Kaplan trubines
are low head hydro power turbines.