GTU Mechanical Engineering (Semester 6)
Alternate Energy Sources
December 2014
Total marks: --
Total time: --
INSTRUCTIONS
(1) Assume appropriate data and state your reasons
(2) Marks are given to the right of every question
(3) Draw neat diagrams wherever necessary


1 (a) What is meant by renewable energy sources? What are the prospects of non-conventional energy sources in India?
7 M
1 (b) Define terms: Altitude angle, Incident angle, Zenith angle, Solar Azimuth angle, latitude angle, Declination angle, Hour Angle.
7 M

2 (a) Write a short note on Darrius rotor.
7 M
Answer any two question from Q2 (b) or Q2 (c)
2 (b) What is the basic principle of ocean thermal energy conversion (OTEC)?
7 M
2 (c) Describe the "closed cycle" OTEC system, write its advantages over "open cycle" system.
7 M

Answer any two question from Q3 (a), (b) or Q3 (c), (d)
3 (a) How MHD systems are classified? Describe them in brief.
7 M
3 (b) What are the advantages and limitations of wave energy conversion?
7 M
3 (c) Define solar constant. What is the difference between a Pyrheliometer and a Pyranometer?
7 M
3 (d) Explain energy conversation and energy audit.
7 M

Answer any two question from Q4 (a), (b) or Q4 (c), (d)
4 (a) What are the main applications of a solar pond? Describe briefly.
7 M
4 (b) Explain the constructional detail and working of KVIC digester.
7 M
4 (c) How are gasifiers classified? What is pyrolysis? What are the potential applications of the gasifier?
7 M
4 (d) What are the difficulties in tidal power developments?
7 M

Answer any two question from Q5 (a), (b) or Q5 (c), (d)
5 (a) Classify combined cycle power generation. Explain any one in brief with neat sketch.
7 M
5 (b) Describe in brief, the different energy storage methods used in the solar system.
7 M
5 (c) Define geothermal source. Classify and explain geothermal sources.
7 M
5 (d) Describe a binary cycle system for liquid dominated system.
7 M



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