Agenerator is to be driven by a small pelton wheel with a head of 91.5m at inlet to the nozzle and discharge of 0.04m^3/s. the wheel rotates at 720rpm a n d the velocity coefficient of the nnozzle is 0.98. if the efficiency of the wheel (based on the energy available at entry to the nozzle) is 80 per cent and the ratio of bucket speed to jet speed is0.46, determine the wheel-to-.jet-di meter ratio at the centre-line of the buckets, and the speed of the wheel. what is the dimensionless power specific speed of the wheel?

Asingle-geared blanking press has a stroke of 200 mm and a rated capacity of 320 kn. a cam driven ram is assumed to be capable of delivering the full press load at constant force during the last 15 percent of a constant-velocity stroke. the camshaft has an average speed of 90 rev/min and is geared to the flywheel shaft at a 6: 1 ratio. the total work done is to include an allowance of 16 percent for friction a) estimate the maximum energy fluctuation b) find the rim weight for an effective diameter of 1.2 m and a coefficient of speed fluctuation of 0.10