KAPLAN TURBINE RUNNER DEVELOPS 9300 KW UNDER A NET HEAD OF 7.4 M. MECHANICAL EFFICIENCY OF THE WHEEL IS 86 %, SPEED RATIO IS 2.2 AND FLOW RATIO IS 0.66. DIAMETER OF THE BOSS IS 0.35 TIMES THE EXTERNAL DIAMETER OF THE WHEEL. DETERMINE (1) THE DIAMETER OF THE RUNNER (II) SYNCHRONOUS SPEED AND (III) THE SPECIFIC SPEED OF RUNNER ASSUME MECHANICAL EFFICIENCY EQUAL TO OVERALL EFFICIENCY.

Q-2.3 A kaplan turbine develops, 1500 kW power at average head of 30 meter. The speed and flow ratios are 2.1 and 0.62 respectively. The diameter of boss = 0.4 times the external diameter of runner. Overall efficiency being 90%. Calculate diameter and speed of runner.

shows a pump employed for lifting water from a sump. If its required to pump 60 liters/sec of water through a 0.1 m diameter pipe from the sump to point 10m above, determine the power required. Also determine pressure intensities at L and M. Assume efficiency of 70%. Pu-(YGYLD)

A compound shaft consists of a titanium alloy [G= 6,200 ksi] tube (1) and a solid stainless steel [G= 11,500 ksi] shaft (2). Tube (1) has a length of L₁ = 38 in., an outside diameter of D₁ = 2.25 in., and a wall thickness of t₁ = 0.130 in. Shaft (2) has a length of L₂ = 66 in. and a diameter of d₂ = 1.35 in. If an external torque of Tg = 660 lb-ft acts at pulley B in the direction shown, calculate the torque Terequired at pulley C so that the rotation angle of pulley C relative to A is zero. B TB X Tc (2) (1) 112 L₁ N