Question
Download Solution PDFWater falls from a height of 60 m at the rate of 15 kg/s to operate a turbine. The losses due to frictional force are 10% of the input energy. How much power is generated by the turbine ?
(g=10 m/s2)
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFIncident power on turbine =\(\frac{d(mgh)}{dt}\)
=gh \(\frac{dm}{dt}\)
= 10 × 60 × 15 = 9000 W
Now, losses are 10%
∴ power generated = \(\left( {1 - \frac{{10}}{{100}}} \right)\) × 9000
= 8100 W
= 8.1 kW
Hence option 3) is correct choice.
Last updated on Jun 16, 2025
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