Alternate Energy Sources - Dec 2014
Mechanical Engineering (Semester 6)
TOTAL MARKS: 100
TOTAL TIME: 3 HOURS (1) Question 1 is compulsory.
(2) Attempt any four from the remaining questions.
(3) Assume data wherever required.
(4) Figures to the right indicate full marks. 1 (a) What is meant by renewable energy sources? What are the prospects of non-conventional energy sources in India?(7 marks) 1 (b) Define terms: Altitude angle, Incident angle, Zenith angle, Solar Azimuth angle, latitude angle, Declination angle, Hour Angle.(7 marks) 2 (a) Write a short note on Darrius rotor.(7 marks)
Answer any two question from Q2 (b) or Q2 (c)
2 (b) What is the basic principle of ocean thermal energy conversion (OTEC)?(7 marks) 2 (c) Describe the "closed cycle" OTEC system, write its advantages over "open cycle" system.(7 marks)
Answer any two question from Q3 (a), (b) or Q3 (c), (d)
3 (a) How MHD systems are classified? Describe them in brief.(7 marks) 3 (b) What are the advantages and limitations of wave energy conversion?(7 marks) 3 (c) Define solar constant. What is the difference between a Pyrheliometer and a Pyranometer?(7 marks) 3 (d) Explain energy conversation and energy audit.(7 marks)
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 marks) 4 (b) Explain the constructional detail and working of KVIC digester.(7 marks) 4 (c) How are gasifiers classified? What is pyrolysis? What are the potential applications of the gasifier?(7 marks) 4 (d) What are the difficulties in tidal power developments?(7 marks)
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 marks) 5 (b) Describe in brief, the different energy storage methods used in the solar system.(7 marks) 5 (c) Define geothermal source. Classify and explain geothermal sources.(7 marks) 5 (d) Describe a binary cycle system for liquid dominated system.(7 marks)