JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech IV RENEWABLE ENERGY SOURCES Previous Question Paper (September - 2022 - R16)
Answer any five questions. All questions carry equal marks.
Main
Enumerate the differences between conventional and non-conventional energy sources and give examples for each.
Answer
Conventional energy sources are finite, non-renewable, and typically rely on fossil fuels, whereas non-conventional (renewable) energy sources are naturally replenished and inexhaustible. Conventional sources have a high environmental impact due to greenhouse gas emissions, while non-conventional sources are generally cleaner and sustainable. Examples of conventional sources include coal, petroleum, natural gas, and nuclear power. Examples of non-conventional sources include solar energy, wind energy, geothermal energy, biomass, and tidal energy.
Analyze the importance of renewable energy in-terms of CO2 reduction.
Answer
Renewable energy plays a critical role in mitigating climate change by displacing fossil fuel-based power generation. Conventional thermal power plants release significant quantities of CO2, a primary greenhouse gas, during the combustion of coal and natural gas. By transitioning to renewable sources like solar, wind, and hydro, which produce electricity with little to no direct carbon emissions during operation, the overall carbon intensity of the energy grid is substantially lowered. This reduction is essential for meeting international climate targets, slowing global warming, and reducing the ecological damage caused by ocean acidification and extreme weather events linked to high atmospheric CO2 concentrations.
Write a short note on types of renewable energy systems.
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In your view, which renewable energy source is having high potential in the Indian context? Justify your answer.
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What is Global climate change? How is it affected because of energy sources? and list out some key points to reduce it.
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How can solar radiation be measured? With a neat diagram explain.
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Illustrate the working principle of solar thermal energy storage systems.
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Discuss about the operation of solar Photovoltaic systems with their advantages and disadvantages.
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Select one application of the solar energy system which you think is so important or a potential candidate.
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How does wind is classified and what are the factors influencing the wind.
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List the types of windmills with their merits and demerits.
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Discuss about the wind energy installations in India.
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Explain the advantages and disadvantages of offshore wind energy forms.
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What are the safety and environmental aspects of wind mills?
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List the components of a windmill and write a note on it.
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What are biomasses? How does a biomass conversion unit work? What are the components of a biomass conversion unit?
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How biodiesel and alcohol are produced from biomass?
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With a neat diagram, explain the working of an OTEC plant.
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Discuss the advantages of the wave energy conversion system.
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