(a) A pelton wheel is to be designed for the following specifications: shaft power $=11,772 \mathrm{~kW}$; Head $=380 \mathrm{~m}$; Speed $=750 \mathrm{rpm}$; Overall Efficiency $=86 \%$; Jet diameter is not to exceed one-sixth of the wheel diameter. Determine: (i) the wheel diameter (ii) number of jet required and (iii) Diameter of jet. Take co efficient of velocity ' $\mathrm{C}_{\mathrm{v}}$ ' $=0.985$ and speed ratio=0.45.
Explanation
The wheel diameter is calculated using the given specifications and the velocity of the jet. The number of jets required is calculated using the given power and the velocity of the jet. The diameter of the jet is calculated using the given wheel diameter and the speed ratio.
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