Work done in reaction turbine

Q.  In reaction turbine work is done_______________.
- Published on 16 Sep 15

a. totally due to change in kinetic energy of jet
b. totally due to change in pressure head
c. mostly due to change in pressure head and small amount of work is due to change in kinetic energy
d. mostly due to change in kinetic energy and small amount of work is due to change in pressure head

ANSWER: mostly due to change in pressure head and small amount of work is due to change in kinetic energy

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    Discussion

  • Pankaj   -Posted on 12 Oct 15
    The reaction turbine works on the principle of impulse and reaction. A part of all the pressure energy of water is converted into kinetic energy before supplied to runner. Thus, water entering the runner has partly the pressure energy and partly the kinetic energy.

    Therefore, In reaction turbine most of the work is done due to change in pressure head and very small of work is done due to change in kinetic energy.

    Whereas, in impulse turbine, total work is done due to change in kinetic energy of the water jet.

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