JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech III ENERGY STORAGE SYSTEMS Previous Question Paper (July - 2023 - R16)
Question paper consists of Part A and Part B. Part A is compulsory, which carries 25 marks. Answer all questions in Part A. In Part B, Answer any one question from each unit. Each question in Part B carries 10 marks.
Part A
How do ESS help in reducing congestion in power grids?
Answer
Energy Storage Systems (ESS) reduce grid congestion by absorbing excess power during peak generation or low demand periods and injecting it back during peak demand, thereby preventing transmission lines from exceeding their thermal limits.
Is ESS environmental friendly? Justify your answer.
Answer
Yes, ESS is environmentally friendly as it facilitates the integration of intermittent renewable energy sources like wind and solar, reducing reliance on fossil-fuel-based peaking plants. However, the environmental impact of battery manufacturing, raw material extraction, and end-of-life recycling must be managed to ensure overall sustainability.
What are the two major emerging market needs of ESS as a key technology?
Answer
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What roles can ESS play in future Smart Grids?
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What is pumped hydro storage system? Write in brief.
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List six types of secondary batteries.
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What are two main features of Double Layer Capacitors?
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What are the advantages of superconducting magnetic storage systems?
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What is internal configuration of battery storage systems?
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Differentiate between hybrid and electric vehicles power trains.
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Part B
Discuss about electricity and roles of ESS.
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Write short note on characteristics of electricity.
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Explain the need for continuous and flexible supply.
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What are the emerging needs of ESS in off grid areas? Explain.
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Why are ESS essential for on – grid areas?
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What are the roles of ESS from viewpoint of generators of renewable energy?
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Write short notes on the following:
- Compressed air energy storage systems
- Metal air battery.
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Write short notes on the following:
- Redox flow battery
- Synthetic Natural Gas.
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Write in details about Thermal energy storage systems.
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What conclusions can be drawn from technical comparison of EES technologies?
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What is a smart grid? Explain.
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Explain external connection of EES systems.
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What is the concept of Smart House?
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Write about Battery SCADA as aggregation of many dispersed batteries.
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