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Ece 573 Renewable Energy Technologies Question Paper

Ece 573 Renewable Energy Technologies 

Course:Bachelor Of Electrical And Electronics Engineering

Institution: Moi University question papers

Exam Year:2009



ECE 573 RENEWABLE ENERGY TECHNOLOGIES

QUESTION ONE
a. Explain clearly what is meant by the Betz limit. (2mks)

b. Discuss briefly the methods of estimating the wind energy potential of candidate site. (4mks)

c. Derive an expression for energy and power that can be extracted from the wind turbine. (14mks)

QUESTION TWO
a. Define the three solar radiation flux components incident on a surface giving equations. (5mks)

b. Compute the monthly average hourly solar flux received on a flat slave collector facing due south (Y=0) having a slope of 12 degrees. The collector is located at a place 15' 00 N on the 20th of October.
The data given are:
Time 1-12 h (local apparent time) (5mks)







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