July 06

Derive expressions for specific speed of a turbine (06) A turbine is to operate under a head of 25 m at 200 rpm . The discharge is

9 m 3 /s . If the efficiency is 90 %, determine :

i) Power generated ii) Speed and Power at a head of 20 m . (07)

Jan 06

What is specific speed of a turbine and ex plain its significance (04) Jan 05 Define and derive an expression for specific speed of a turbine, indicating its significance. (08) Define the terms unit power, unit speed and unit discharge with reference to a h ydraulic turbine. Also give the expressions for these terms (06)

July 04 Define specific speed of a h ydraulic turbine . Derive an equation for specific speed in terms of operating speed, power and head (08)

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