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F7202
PART 0
Answer any two full questions, each carries 10 marks.
Prove that the maximum wind turbine output can be achieved when Vyg=1/3 Vu,
where ५३ and V, are down-stream and up-stream wind velocity respectively.
What is pitch control of wind turbine? Explain.
Explain any two types of biogas plants? Discuss the factors which decide the
quality of biogas.
Determine the power output of a wind turbine whose blades are 12 m in diameter
and when the wind speed is 6 m/s, the air density is about 1.2 kg/m* and the
maximum power coefficient of the wind turbine is 0.35.
With a neat schematic diagram, explain the biomass gasification based electric
power generation system.

Describe the working and constructional features of PEM fuel cell.
‏بد‎ 2 मं ‏اد‎

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