Francis turbine

in this ppt full explation of Fransis turbine

1. WELCOME

2. FRANCIS TURBINE

3. INTRODUCTION: The   Francis turbine  is a type of  water turbine  that was developed by  James B. Francis  in  Lowell, Massachusetts . It is an inward-flow reaction turbine  that combines radial and axial flow concepts.

4. COMPONENTS:

5. COMPONENTS:

6. INSTALLATION:

7. WORKING:

8. WORKING VIDEO:

9. APPLICATION:

10. Advantages: • Changing of the head must be easily controlled • Generator size must be small • Runner size also small • When the variation in the tail water level is relatively large then the operating head can be utilized compare with the total head. High efficiency(80-94%)

11. Disadvantages: • We can notice the wear when the water is un-cleaned. • Inspection process is seen to difficult. • Cavitation is the main danger • Due to the water hammer effects it creates some problems. • If head is below 50% then we can face the harmful effects mainly on the efficiency. • Cavitation is also a big problem

12. THANKING YOU