The radial component of velocity of water leaving a centrifugal pump is 15 m/s. The magnitude of the absolute velocity of water at the pump exit is 30 m/s. Water enters the pump rotor radially. The pump has inner impeller radius of 0.05 m and outer impeller radius of 0.2 m. The impeller rotates at 2000 rpm. (b) (d) (e) Sketch the velocity triangle diagrams at the inlet and the exit of the centrifugal pump. Label each velocity vector clearly. Define U as absolute velocity of blade, V as absolute velocity of water, W as relative velocity of water. Determine the absolute velocity of blade at the inlet and the exit of the centrifugal pump. Determine the tangential component of velocity at the inlet and the exit of the centrifugal pump. Determine the radial component of velocity at the inlet of the centrifugal pump. Determine the relative velocity of water at the inlet and the exit of the centrifugal pump.

The front and side views of a centrifugal impeller are shown in the figure below. All symbols have their usual meanings. The outer radius of the impeller is r2 = 0.4 m and the blade height at the impeller outlet b2₂ = 0.03 m. The volume flow rate of water (density = 1000 kg/m³) through the impeller is 0.2 m³/s. The outlet blade angle 8₂ = 50 degrees and the impeller rotational speed w=1600 rpm. Assume negligible losses, and the design conditions of whirl-free and shock-free entry. The impeller torque is B₂F N-m. Front View 12 b2 |+| Side View

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The front and side views of a centrifugal impeller are shown in the figure below. All symbols have their usual meanings. The outer radius of the impeller is r2 = 0.4 m and the blade height the impeller outlet b₂ = 0.02 m. The volume flow rate of water (density = 1000 kg/m³) through the impeller is 0.5 m³/s. The outlet blade angle 3₂ = 35 degrees and the impeller rotational speed w=1600 rpm. Assume negligible losses, and the design conditions of whirl-free and shock-free entry. The gravitational acceleration g = 9.81 m/s². The theoretical (Euler) head is m. Front View P₂1 r2 b2- 118 Side View