Hall Ticket No Question Paper Code: BPE701
INSTITUTE OF AERONAUTICAL ENGINEERING
(Autonomous)
M.Tech I Semester End Examinations (Regular) January, 2018
Regulation: IARE-R16
RENEWABLE ENERGY SYSTEMS
(Common to
Time: 3 Hours Max Marks: 70
Answer ONE Question from each Unit
All Questions Carry Equal Marks
All parts of the question must be answered in one place only
UNIT I
1. Describe with neat sketch various solar cell configurations.
At 300K in silicon, the intrinsic carrier concentration is ni 1:451016/m3 the impurity charge
carrier concentration are ND NA 105ni. Estimate
i. the barrier voltage
ii. the barrier width
iii. the maximum electric field across the barrier.
K 8:6174eV q 1:6022 "o 8:842 "r 12foeSi

2. List out the test specifications for PV systems and its purpose.
Explain the term fill factor and its importance as a performance parameter for a solar cell.
UNIT II
3. Discuss the principle and procedure of Magneto Hydro Dynamic power generation.
What are important factors to be considered while selecting materials for a MHD generator.

4. Derive an expression for energy that can be extracted from wind.
Write the advantages and disadvantages of wind energy conversion systems.
UNIT III
5. Explain with a neat sketch creation of spring and neap tides.
What are the important components of a tidal power plant? Explain each.
6. Write a short note on wave energy conversion and factors affecting the wave energy.
Describe the closed cycle Ocean Thermal Energy Conversion(OTEC) system and mention its
advantages and limitations.
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UNIT IV
7. Describe with block diagram Lurgi coal gasification process.
Discuss a geothermal power plant using single flash system.
8. Explain combined cycle co generation with neat sketch.
Explain anaerobic digestors for biomass energy conversion system.
UNIT V
9. Give a complete description of the working and constructional features of a hydrogen-oxygen fuel
cell.
List types of fuel cells. Illustrate advantages and applications of fuel cells.
10. What is the principle of battery and explain secondary battery system.
Write a short notes on types of batteries and applications for large power.
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