JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD B.Tech III ENERGY STORAGE SYSTEMS Previous Question Paper (February - 2023 - R16)
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
List the roles of Electrical Energy Storage.
Answer
The primary roles of Electrical Energy Storage (EES) are load leveling, peak shaving, frequency regulation, voltage support, and providing backup power during grid outages.
Why the generation cost is more in peak load periods?
Answer
Generation cost increases during peak periods because utilities must bring less efficient, high-operating-cost peaking plants (like gas turbines) online to meet the surge in demand. Additionally, these plants often use more expensive fuels and operate for fewer hours, preventing the recovery of fixed capital costs through high-volume generation.
What is smart grid?
Answer
Sign in to view the complete answer paper.
Outline on emerging needs for EES.
Answer
Sign in to view the complete answer paper.
What is electrochemical storage system?
Answer
Sign in to view the complete answer paper.
What is the principle of CAES? Explain.
Answer
Sign in to view the complete answer paper.
What are the standards should maintain for EES?
Answer
Sign in to view the complete answer paper.
Draw Double layer capacitors storage system.
Answer
Sign in to view the complete answer paper.
What is virtual power plant?
Answer
Sign in to view the complete answer paper.
List the new trends in applications of EES.
Answer
Sign in to view the complete answer paper.
PART B
Describe about the characteristics of Electricity.
Answer
Sign in to view the complete answer paper.
Elaborate on consequences happening in power grid due to day by day congestion.
Answer
Sign in to view the complete answer paper.
Appraise the role of Electrical energy storage technologies in view point of utility.
Answer
Sign in to view the complete answer paper.
Explain the role of electrical energy storage technologies in view point of generators of renewable energy.
Answer
Sign in to view the complete answer paper.
Explain the following mechanical storage systems:
Flywheel Energy Storage (FES)
Answer
Sign in to view the complete answer paper.
Pumped Hydro Storage (PHS).
Answer
Sign in to view the complete answer paper.
Explain the following electrochemical storage systems:
Secondary batteries
Answer
Sign in to view the complete answer paper.
Flow batteries.
Answer
Sign in to view the complete answer paper.
Compare the different EES technologies in technical sense and highlight the superior technologies.
Answer
Sign in to view the complete answer paper.
Describe about thermal storage systems and list the advantages and disadvantages.
Answer
Sign in to view the complete answer paper.
With neat block diagram, describe about battery SCADA system.
Answer
Sign in to view the complete answer paper.
Write short notes on:
Management and control hierarchy of storage systems
Answer
Sign in to view the complete answer paper.
Internal configuration of battery storage systems.
Answer
Sign in to view the complete answer paper.