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Posted By: Sree.... Member Level: Diamond Posted Date: 03 Jul 2008
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2006 Andhra Pradesh State Jawaharlal Nehru Technological University B.Tech NON CONVENTIONAL ENERGY SOURCES Question paper
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Code No: NR410206 NR
IV B.Tech I Semester Supplementary Examinations, March 2006
NON CONVENTIONAL ENERGY SOURCES
(Electrical & Electronic Engineering)
Time: 3 hours Max Marks: 80
Answer any FIVE Questions
All Questions carry equal marks
1. (a) What are the prospects of various renewable energy resources in India?
(b) Describe the general principles of Energy management with suitable examples.
[8+8]
2. Explain the operation and working of the following with neat sketch.
(a) Solar module.
(b) Cylindrical parabolic concentrator. [10+6]
3. (a) Discuss the advantages and disadvantages of horizontal over vertical axis wind
turbines.
(b) What methods are used to overcome the fluctuating power generation of aero-
generator? [8+8]
4. (a) Explain the working of ocean thermal energy conversion (OTEC) plant.
(b) Discuss the various equipment for the establishment of an off shore OTEC
system. [8+8]
5. Discuss the methods of harnessing wave energy. [16]
6. (a) How are tides formed? Show by sketches the methods of harnessing the energy
potential associated with ocean tides.
(b) In any estuary, which is being developed for tidal power generation during the
tide cycle the observed difference between the high and low water of the tide
was 4.3m. It is estimated that the estuary’s area is 0.45 sq. km which can
generate power for 3 hours in each cycle. Assuming the average available head
to be 5m, and the overall efficiency of generation to be 65% calculate:
i. The power in kW at any instant and
ii. The total energy in the year ( = 1025 kg/m3 for sea water). [8+8]
7. (a) Explain Hot Dry rocks (petrothermal) resources of geothermal energy and how
they can be exploited as a source of energy.
(b) Explain vapour dominated hydrothermal power plant with neat sketch and its
representation on T-S diagram.
(c) Describe various disadvantages and operational problems associated with geother-
mal energy. [5+6+5]
1 of 2
Code No: NR410206 NR
8. (a) With a help of a neat sketch explain the working principle of any one type of
biogas plant?
(b) What are the techniques suggested for maintaining the biogas production?
Explain.
(c) What are the main applications of biogas. [6+6+4]
2 of 2
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