5.89 An inward flow radial turbine (see Fig. P5.89) involves a nozzle angle, a₁, of 60° and an inlet rotor tip speed, U₁, of 6 m/s. The ratio of rotor inlet to outlet diameters is 1.8. The absolute velocity leaving the rotor at section (2) is radial with a magnitude of 12 m/s. Determine the energy transfer per unit mass of fluid flowing through this turbine if the fluid is (a) air, (b) water.

5.89 An inward flow radial turbine (see Fig. P5.89) involves a nozzle angle, a₁, of 60° and an inlet rotor tip speed, U₁, of 6 m/s. The ratio of rotor inlet to outlet diameters is 1.8. The absolute velocity leaving the rotor at section (2) is radial with a magnitude of 12 m/s. Determine the energy transfer per unit mass of fluid flowing through this turbine if the fluid is (a) air, (b) water.

Elements Of Electromagnetics

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Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

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Conservation of Energy

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12 m/s
Section (2)
Figure P5.89
Section (1)

5.89 An inward flow radial turbine (see Fig. P5.89) involves
a nozzle angle, a,, of 60° and an inlet rotor tip speed, U, of
6 m/s. The ratio of rotor inlet to outlet diameters is 1.8. The
absolute velocity leaving the rotor at section (2) is radial with
a magnitude of 12 m/s. Determine the energy transfer per unit
mass of fluid flowing through this turbine if the fluid is (a) air,
(b) water.

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