APJ ABDUL KALAM TECHNOLOGICAL UNIVERSITY
SECOND SEMESTER M.TECH DEGREE EXAMINATION, MAY 2016

Electrical & Electronics Engineering

(Control Systems, Guidance and Navigational Control, Power Systems, Electrical
Machines,
Power Control & Drives, Power System and Control)

011641 2 New and Renewable Sources of Energy

Max. Marks: 60 Duration: 3 Hours
(Answer any two full questions from each
part)
Part A
1 .a) Describe the principle of operation of a solar pond. (5)
b) What are the main applications of a solar pond? Describe them. (4)

2. Explain the working principle of a solar photovoltaic cell. Describe a basic (9)
photovoltaic system for power generation.

3. Describe the layout & working of a solar water heating system. (9)
Part B
4. Wind at I atmospheric pressure and 15 °C has a velocity of 1 5m/s. Calculate: (9)

i. Total power density of the wind stream ii.
Maximum obtainable power density 11.
Reasonably obtainable power density iv. Total
power and
v. | Torque and axial thmst
Given: turbine diameter = 120m, and turbine operating speed = 40 rpm at
maximum efficiency. Propeller type wind turbine is considered.

5. Describe the main considerations in selecting a site for wind power plants. (9)

6. a. Explain the basic principle of Tidal power generation. (6)

b. Explain the advantages of Tidal power generation (3)
Part C

7. Describe the basic civil work design considerations for small scale hydroelectric plants (12)
with neat diagram

8. Briefly explain (12)
i) Fuel cells ii)
Alcohol energy

9. Explain different types of turbines and generators used for small 1 hydroelectric (12)
plants