18a

18b

19a

19b

20a

20b

0860 0001

Give an overview on constructional details and working of Kaplan turbine.

Make sketches.

Design a Kaplan Turbine to develop shaft power of 800 kW. Assume the
requisite data - Net available head - 6 m, Speed ratio - 2.5, Flow ratio - 0.7 and
the overall efficiency - 65%. The diameter of the boss is taken as 14 rd of the

diameter of the runner.

Module 5

Illustrate working of a Centrifugal pump. Make sketches.

The outer and inner diameter of the impeller of a centrifugal pump are 700 mm
and 300 mm respectively. The width of the impeller at outlet is 20 mm. Speed of
the impeller 151200 rpm and the head available is 50 ൩. The velocity of flow
through the impeller is constant and equal to 3 m/s. The vanes are set back at an
angle of 45% Determine (a) Vane angle at inlet (0) Work done by impeller on

water per second and (c) Manometric efficiency.

Differentiate between Reciprocating pump and Centrifugal pump. Note the

practical applications.

The speed of a single acting reciprocating pump is 60 rpm. The discharge of the
pump is 0.02 m/s. The diameter of the piston and stroke length are 250 mm and
500 mm respectively. Determine the theoretical discharge of the pump,
coefficient of discharge and percentage slip.

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