Jawaharlal Nehru Technological University Hyderabad
Jawaharlal Nehru Technological University Hyderabad B.Tech III Year NON-CONVENTIONAL POWER GENERATION Previous Question Paper (November/December - 2018 - R16)
Part A is compulsory which carries 25 marks. Answer all questions in Part A. Part B consists of 5 Units. Answer any one full question from each unit. Each question carries 10 marks.
PART - A
What is the basic difference between active and passive solar heating system?
Answer
An active solar heating system uses mechanical devices like pumps and fans to circulate a heat transfer fluid, whereas a passive solar heating system relies on natural convection, conduction, and radiation to collect and distribute heat without external power.
Explain solar pond. Write its applications.
Answer
A solar pond is a large-scale solar energy collector that uses a salinity gradient to trap heat, preventing convection and allowing the bottom layer to reach high temperatures. Its applications include industrial process heating, space heating, desalination, and power generation.
What is PV cell? What type of energy will be obtained from it?
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Draw the equivalent circuit of PV system and explain briefly.
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What are the principles used for measurement of wind speed?
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Explain the major application of wind power?
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Describe the factors that affect bio digestion.
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Classify geothermal sources.
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List the applications of fuel cells.
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Explain briefly the components of tidal power plant.
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PART - B
What are the losses affecting the efficiency of flat plate collector? Explain how do you reduce the same?
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With the help of schematic diagram explain technique of solar heating and cooling.
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How the solar radiation effect on titled surface?
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Describe the principle of solar photo voltaic energy conversion?
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Explain how inverters are used to maximize the efficiency of a solar power system.
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Explain the method of solar thermal energy storage using sensible heat.
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Why Tracking is needed and what advantage does MPPT give in the real world?
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Using Betz model of a wind turbine, derive the expression for power extracted from wind? What is the maximum theoretical power that can be extracted and under what condition?
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Discuss the advantages and disadvantages of both horizontal and vertical axis wind mill.
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Explain how the energy produced by a wind turbine can be stored for re-use. What are the arrangements used for starting a Darrieus wind turbine?
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Explain the simple digester system used for bio- conversion, with a neat sketch.
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Classify Wet and Dry Processes.
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Discuss about Magma Resources?
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Enumerate the Prime movers used in Geo thermal power stations.
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Discuss the scope of utilizing ocean wave energy to generate electricity.
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What are the various methods of tidal energy generation? Explain in detail.
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Explain the advantages of fuel cell power sources. Draw a simple sketch of H2,-O2, fuel cell and explain its working.
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