Elective-I : Renewable Energy & Energy storage-Engineering-Mumbai University-Dec2019 - Grad Plus

Elective-I : Renewable Energy & Energy storage-Engineering-Mumbai University-Dec2019

MUMBAI UNIVERSITY

Subject: Elective I: Renewable Energy & Energy Storage

Semester: 5

[Total Time: 3 Hours]
[Total Marks: 80 M]
N.B.
1.Question No.1 is Compulsory.
2.Answer any three out of remaining five questions
3.Assume any suitable data wherever required, justify the same
4.Illustrate answer with sketches wherever required


Q 1 a) Discuss two power quality issues and two protection issues of the solar PV system [05M]

b) List out the solar PV technologies. Illustrate anyone in brief.[05M]

c) Compare Horizontal Axis Wind Technology and Vertical Axis Wind Turbine [05M]

d) What are the different ways to use solar thermal energy? Describe any one of them in brief with the help of neat diagram. [05M]

Q 2 a) Describe the principle of operation of Proton Exchange Membrane Fuel Cell (PEMFC) along with its electrical characteristics. Illustrate how PEMFC can fed power to three phase AC standalone load. [10M]

b) Illustrate the financial benefits of energy storage systems in detail. [10M]

Q 3 a) Explain the principle of pumped hydro storage system and their importance [10M]

b) Draw the power topology of wind energy system based on doubly fed induction generator [10M]

Q 4 a) Draw I-V (current v/s voltage) and P-V (power v/s voltage) characteristics of a solar PV cell and clearly mark all essential parameters on it. What is the impact of change in solar radiation and temperature on solar PV characteristics?
[10M]

b) Explain the working of a Wind Energy System (WES) with its various components. What are the different power converter topologies used for WES? Explain anyone in detail. [10M]

Q 5 a) State and explain following parameters related to batteries: [10M]
i) State of charge (SOC)
ii) Depth of discharge (DOD)
iii) Battery Capacity
iv) C-Rating

b) Illustrate the principle of Aerodynamics in relation with Wind turbine operation [5M]

c) Illustrate the phenomenon of Hot Spots in PV module. [05M]

Q 6 Write short notes on:

a) Compare various solar PV technology Mono crystalline, poly crystalline and thin film [08M]

b) Flywheel as an energy storage device [05M]

c) What is MPPT in solar system? Explain anyone MPPT algorithm. Also explain distributed MPPT. [07M]

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