JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech III Year NON-CONVENTIONAL POWER GENERATION Previous Question Paper (March - 2024 - R16)
Answer all questions in Part A. Answer any one question from each unit in Part B.
Part A
Brief about Solar spectrum.
Answer
The solar spectrum represents the distribution of electromagnetic radiation emitted by the sun. It primarily consists of ultraviolet (UV) radiation (about 8%), visible light (about 46%), and infrared (IR) radiation (about 46%), spanning wavelengths from approximately 0.2 to 3.0 micrometers.
How does the collection of solar energy is affected by tilting a flat plate collector with respect to ground?
Answer
Tilting a flat plate collector optimizes the angle of incidence between the collector surface and the incoming solar rays. By adjusting the tilt based on the latitude and season, the collector maximizes the intensity of direct beam radiation received, thereby increasing the thermal energy collection efficiency compared to a horizontal orientation.
What are major advantages and disadvantages of solar PV system?
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Explain about maximum power point tracking mechanism.
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Mention the merits and demerits of wind energy.
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Brief about Aerodynamics of wind turbine.
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What is biomass gasifier? Write its gasification reactions?
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What is meant by fermentation, aerobic, anaerobic digestion?
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What are the merits and demerits of tidal power plant?
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Write the anode and cathode equations of any two fuel cells.
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Part B
With neat and necessary diagrams, illustrate the functions of various components in flat plate collectors.
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Explain the working of water heating system with a neat sketch.
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Explain the process of generation of power in solar pond with a neat sketch and also mention its merits and demerits.
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With neat and necessary diagrams, explain how steam will be generated with parabolic dish collector?
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Explain the principle of conversion of solar energy into heat.
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With suitable example design a Solar PV module to supply a power to a load of 10 kW.
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Explain in detail about the construction of solar cell, solar module and solar array.
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With neat diagrams, explain about PV cell equivalent circuit and its V-I Characteristics.
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Derive the expression for Betz Limit ratio.
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Explain in detail about any two types of horizontal axis wind turbines construction.
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From fundamentals, obtain the expression for power available in wind.
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Compare different types of vertical axis wind turbines.
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Discuss in detail about Digester design considerations.
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With neat and necessary diagram, explain the working principle of Updraught Gasifier.
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With neat and necessary diagram, explain the working principle of any one Petro-thermal system.
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Discuss in detail about bio-mass Wet Processes.
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What are the main types of OTEC power plants? Describe the working of closed loop type OTEC.
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From fundamentals, estimate the Energy in Single basin system.
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With neat and necessary diagrams, explain the constructional details and working principle of Lead acid battery.
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With neat and necessary diagrams, explain the constructional details and working principle of H2O2 Fuel cell.
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