Jawaharlal Nehru Technological University Hyderabad
Jawaharlal Nehru Technological University Hyderabad B. Tech III Year NON CONVENTIONAL ENERGY SOURCES Previous Question Paper (May - 2019 - R16)
Part A is compulsory. Part B consists of 5 Units. Answer any one full question from each unit.
Part A
Answer all questions in this part.
Write the classification of energy sources.
Answer
- Conventional Energy Sources: These are non-renewable, finite resources that have been used extensively for a long time, such as coal, petroleum, natural gas, and nuclear fuels.
- Non-Conventional Energy Sources: These are renewable, sustainable resources that are naturally replenished, such as solar, wind, biomass, geothermal, and ocean energy.
What is the importance of Non-Conventional Energy Sources?
Answer
- Sustainability: They provide an inexhaustible supply of energy unlike fossil fuels.
- Environmental Impact: They produce little to no greenhouse gas emissions, helping to mitigate climate change and global warming.
- Energy Security: They reduce dependence on imported fuels and diversify the energy mix, enhancing national energy independence.
Which is the most expensive component in a solar PV system?
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Write a note on concentric collectors.
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What are the relative features of lift and drag type machines.
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What are the most favorable sites?
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What are different types of bio fuels?
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What are the major applications of geo thermal energy?
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Describe the origin of tides.
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What is the principle of Ocean Thermal Energy Conversion?
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Unit I
Compare different non Conventional energy resources and Conventional energy sources.
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Explain in detail different kinds of renewable energy resources.
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Discuss the availability, prospects and economic feasibility of each type of renewable energy source.
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Unit II
Write short notes on extra terrestrial and terrestrial Solar radiation.
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Describe the principle of solar photo voltaic energy conversion.
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What are the losses affecting the efficiency of flat plate collector? Explain how do you reduce the same?
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Unit III
Discuss in detail with a neat sketch about the working of a wind mill.
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Discuss the disadvantages of horizontal axis wind mill. What methods are used to overcome the fluctuating power generation in wind mills?
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Prove that the maximum power coefficient (Cp) for a wind mill is 0.593.
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How are the wind mills classified?
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Unit IV
Explain with a neat sketch of a bio-gas plant for producing biogas by ‘Anaerobic Fermentation’.
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Explain the operation of vapour dominated geo-energy system with a neat schematic diagram.
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Discuss about Magma Resources.
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Unit V
Discuss the scope of utilizing ocean wave energy to generate electricity.
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Explain with neat sketches the basic principle of tidal power generation. What are the limitations of each method?
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Explain the closed cycle OTEC system with advantages and disadvantages over the open cycle OTEC plant.
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Derive expressions for power and energy from the waves.
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