JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech IV Year RENEWABLE ENERGY SOURCES Previous Question Paper (January/February - 2023 - R18)
Note: i) Question paper consists of Part A, Part B. ii) Part A is compulsory, which carries 25 marks. In Part A, Answer all questions. iii) In Part B, Answer any one question from each unit. Each question carries 10 marks and may have a, b as sub questions.
Part A
What is the potential of renewable energy in India?
Answer
India possesses a vast renewable energy potential, estimated at over 1,000 GW, primarily driven by solar (approx. 750 GW) and wind (approx. 300 GW at 100m hub height) resources, alongside significant biomass and small hydro potential.
What are the different types of renewable energy sources and their contribution to power demand?
Answer
Primary renewable sources include solar, wind, biomass, small hydro, and geothermal energy. Currently, these sources contribute approximately 40-45% to India's total installed power capacity, playing a critical role in meeting the nation's growing electricity demand while reducing carbon emissions.
What is the solar energy system?
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What is Solar constant? What is its standard value?
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What are the most favorable sites for installing wind turbines?
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Define Betz limit.
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Give some of the organic materials used in biomass plant.
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List various types of biogas generators.
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What are the different sources of geothermal energy?
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What is the difference between power from waves and power from tides?
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Part B
Identify various energy sources. What is the future of energy utilization?
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Discuss the present energy situation in the world and in India in 2022.
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Discuss the role of energy in sustainable development. Which type of energy is most sustainable? Justify your statement.
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Enumerate are the reasons for variation in solar radiation reaching the earth than received at the outside of the atmosphere.
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Describe the application of solar energy for the solar water pumping system.
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Discuss how solar radiation is measured and estimated.
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Enumerate the applications of solar photovoltaic conversion and describe one in detail.
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Sketch the diagram of a HAWT and explain the function of its main components.
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Discuss the safety and environmental impact of wind energy.
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Describe how a wind energy system works and draw a clear picture of its main parts.
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Discuss the following methods of biogas generation.
Gasification
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Anaerobic Digestion.
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Explain the following in relation to biomass.
Thermochemical conversion
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Biochemical conversion.
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What is the basic principle of ocean thermal energy conversion? What are the main types of OTEC power plants? Describe their working.
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Explain the ‘single-basin’ and ‘two-basin’ systems of tidal power harnessing. Further, discuss their advantages and limitations.
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