Question 7
An axial flow water Kaplan turbine operates under a head of 2.5m while the rotational speed is 75 rpm. The runner tip diameter is4.8 m and the hub diameter is 2.4 m. The flow rate is 48.5 m3/s andhydraulic efficiency of 93%. Assuming zero whirl at exit,determine: Sketch the inlet and outlet velocity triangles at theMEAN radius and calculate:
1.1 The runner blade inlet and exit angles at mean radius. ANS:+/- 74Ëš
1.2. The theoretical power developed? ANS: +/- 1.1MW
1.3. The mechanical efficiency if the shaft output power is 980kW? ANS: +/- 88.6%
This is only one question, sir.  Pls solve it in acomprehensive manner showing all the steps in detail. Thankyou!!
