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CME365-RET - Mech

Mechanical engineering (Anna University)

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DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING

CME365 RENEWABLE ENERGY TECHNOLOGIES
QUESTION BANK
REGULATION 2021

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DEPARTMENT OF ELECTRICAL AND ELECTRONICS ENGINEERING

IV YEAR / VII SEMESTER

CME365 RENEWABLE ENERGY TECHNOLOGIES
QUESTION BANK

REGULATION 2021

Faculty In Charge Head of the Department

Mrs.R.Gayathri, M.E, Dr.K.Jayakumar B.E, M.Tech. (IITM), M.Tech.
Assistant Professor (JNTUH), MBA, Ph.D.
Department of Electrical and Electronics Professor and Dean (Electrical Sciences)
Engineering Department of Electrical and Electronics
Engineering

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INSTITUTE VISION & MISSION

VISION:

To become a globally recognized “Centre of Academic Excellence” providing Quality Education to

all students.

MISSION:

To provide Quality Education in the fields of Engineering, Management, Information, Technology

and other Engineering areas.

DEPARTMENT VISION & MISSION

VISION:

To provide students with high quality education so that they are well-prepared to become high
caliber Electrical and Electronics Engineers, and it aspires to grow to the level of gaining global
recognition.

MISSION:
M1 Developing competent technocrats who strive continuously in pursuit of professional
excellence in the field of Electrical and Electronics Engineering.
M2 Developing and sustain a culture of research while promoting values, ethics and
professionalism.
M3 Offering well-balanced curriculum to help students acquire professional competencies
and to arrange placements for students.
M4 Developing the state-of-art infrastructure and research for effective teaching-learning
process.
M5 Strengthening soft skills especially for rural students through co-curricular and extra-
curricular activities.

PROGRAM EDUCATIONAL OBJECTIVES (PEOs)

PEO1 Find employment in Core Electrical and Electronics Engineering and service sectors.

PEO2 Get elevated to technical lead position and lead the organization competitively.

Enter into higher studies leading to post-graduate and research degrees. Become
PEO3
consultant and provide solutions to the practical problems of core organization.

Become an entrepreneur and be part of electrical and electronics product and service
PEO4
industries.

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PROGRAM OUTCOMES (POs):

Engineering knowledge :Apply knowledge of mathematics, basic science and

PO1 engineering science.
PO2 Problem analysis :Identify, formulate and solve engineering problems.
Design/development of solutions :Design an electrical system or process to improve its
PO3
performance, satisfying its constraints.
Conduct investigations of complex problems : Conduct experiments in electrical and
PO4 electronics systems and interpret the data.
Modern tool usage :Apply various tools and techniques to improve the efficiency of the
PO5 system
The Engineer and society :Conduct themselves to uphold the professional and social
PO6 obligations

Environment and sustainability :Design the system with environment consciousness

PO7 and sustainable development.

PO8 Ethics :Interacting industry, business and society in a professional and ethical manner.
PO9 Individual and team work: Function in a multidisciplinary team.
PO10 Communication : Proficiency in oral and written Communication.

PO11 Project management and finance :Implement Cost effective and improved system.

Life-long learning : Continue professional development and learning as a life-long

PO12
activity.

PROGRAM SPECIFIC OUTCOMES (PSOs):

Foundation of Electrical Engineering: Ability to understand the principles and working
of electrical components, circuits, systems and control that are forming a part of power
PSO1
generation, transmission, distribution, utilization, conservation and energy saving. Students
can assess the power management, auditing, crisis and energy saving aspects.
Foundation of Mathematical Concepts: Ability to apply mathematical methodologies to
PSO2 solve problems related with electrical engineering using appropriate engineering tools and
algorithms.
Computing and Research Ability: Ability to use knowledge in various domains to
PSO3 identify research gaps and hence to provide solution which leads to new ideas and
innovations.

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CME365 RENEWABLE ENERGY TECHNOLOGIES

L T P C
3 0 0 3
COURSE OBJECTIVES

 To know the Indian and global energy scenario

 To learn the various solar energy technologies and its applications.
 To educate the various wind energy technologies.
 To explore the various bio-energy technologies.
 To study the ocean and geothermal technologies.

UNIT I ENERGY SCENARIO 9

Indian energy scenario in various sectors – domestic, industrial, commercial, agriculture,
transportation and others – Present conventional energy status – Present renewable energy status-
Potential of various renewable energy sources-Global energy status-Per capita energy
consumption - Future energy plans

UNIT II SOLAR ENERGY 9

Solar radiation – Measurements of solar radiation and sunshine – Solar spectrum - Solar thermal
collectors – Flat plate and concentrating collectors – Solar thermal applications – Solar thermal
energy storage – Fundamentals of solar photo voltaic conversion – Solar cells – Solar PV Systems
– Solar PV applications.

UNIT III WIND ENERGY 9

Wind data and energy estimation – Betz limit - Site selection for windfarms – characteristics -
Wind resource assessment - Horizontal axis wind turbine – components - Vertical axis wind
turbine – Wind turbine generators and its performance – Hybrid systems – Environmental issues -
Applications.

UNIT IV BIO-ENERGY 9
Bio resources – Biomass direct combustion – thermochemical conversion - biochemical
conversion-mechanical conversion - Biomass gasifier - Types of biomass gasifiers - Cogeneration
- Carbonisation – Pyrolysis - Biogas plants – Digesters –Biodiesel production – Ethanol
production - Applications.

UNIT V OCEAN AND GEOTHERMAL ENERGY 9

Small hydro - Tidal energy – Wave energy – Open and closed OTEC Cycles – Limitations –
Geothermal energy – Geothermal energy sources - Types of geothermal power plants –
Applications - Environmental impact.

TOTAL: 45 PERIODS

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COURSE OUTCOMES

At the end of the course the students would be able to

CO1 Discuss the Indian and global energy scenario.
CO2 Describe the various solar energy technologies and its applications.
CO3 Explain the various wind energy technologies.
CO4 Explore the various bio-energy technologies.
CO5 Discuss the ocean and geothermal technologies.

CO’s – PO’s & PSO’s MAPPING

Correlation of COs with POs / PSOs

COs PO1 PO2 PO3 PO4 PO5 PO6 PO7 PO8 PO9 PO10 PO11 PO12 PSO1 PSO2 PSO3
CO1 1 1 1 1 1 2 3 2 2 1 1 3 2 1 2
CO2 3 2 2 1 1 1 3 1 1 1 2 3 2 1 2
CO3 3 2 3 1 2 1 3 1 1 1 1 3 1 1 2
CO4 2 2 2 1 2 1 3 1 1 1 2 3 2 2 2
CO5 2 1 2 1 2 1 3 1 1 1 1 3 2 1 2
AVG 2.2 1.6 2 1 1.6 1.2 3 1.2 1.2 1 1.4 3 1.8 1.2 2
3 – High; 2 – Medium; 1 – Low; - – No Correlation

TEXT BOOKS:
1. Fundamentals and Applications of Renewable Energy | Indian Edition, by Mehmet
Kanoglu, Yunus A. Cengel, John M. Cimbala, cGraw Hill; First edition (10
December 2020), ISBN-10 : 9390385636
2. Renewable Energy Sources and Emerging Technologies, by Kothari, Prentice Hall
IndiaLearning Private Limited; 2nd edition (1 January 2011), ISBN-10 : 8120344707

REFERENCE BOOKS:
1. Godfrey Boyle, “Renewable Energy, Power for a Sustainable Future”, Oxford
University Press, U.K., 2012.
2. Rai.G.D., “Non-Conventional Energy Sources”, Khanna Publishers, New Delhi, 2014
3. Sukhatme.S.P., “Solar Energy: Principles of Thermal Collection and Storage”, Tata
McGraw Hill Publishing Company Ltd., New Delhi, 2009.
4. Tiwari G.N., “Solar Energy – Fundamentals Design, Modelling and applications”,
Alpha Science Intl Ltd, 2015.
5. Twidell, J.W. & Weir A., “Renewable Energy Resources”, EFNSpon Ltd., UK, 2015.

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UNIT– I
ENERGY SCENARIO

PART–A
CO
Q. No Questions BT Level Complexity
Mapping
What is the environmental impact of
1. CO1 Understand Low
fossil fuels?
Name the various types of fossil fuel
2. CO1 Remember Medium
in the world.
What do you understand by energy
3. resources? List out the types of CO1 Understand Low
energy resources.

4. Define energy efficiency. CO1 Remember Low

Compare the conventional and non-
5. CO1 Evaluate Medium
conventional energy sources.
Write the disadvantages of
6. CO1 Understand Low
conventional energy sources.
Write the importance of Renewable
7. CO1 Understand Low
Energy Sources.
8. What is Sustainable development? CO1 Understand Low
Write the potential of various
9. CO1 Understand Low
Renewable energy sources in India.
Write about the availability of
10. conventional energy sources in the CO1 Understand Medium
world.
Write the details of wind energy
11. CO1 Understand Medium
generation in our country.
Write the importance of solar energy
12. CO1 Understand Low
in the present day energy crisis.

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PART–B
CO
Q. No Questions BT Level Complexity
Mapping
1. Explain the role and important of
renewable sources of energy in CO1 Understand Medium
detail.
Discuss the contribution of
renewable energy sources as on
2022 under national level in
2. CO1 Understand Medium
energy consumption & generation.
Forecast the Indian future energy
management in 2040.
Describe the various renewable
energy resource available in India
CO1 Understand Medium
3. and its potential to supplement the
conventional energy sources.
Explain the energy planning issues
aiming to bridge the gap between
CO1 Understand Medium
4. the energy demand and supply
situation in India.
Explain the significance of energy
consumption as prosperity& the
5. CO1 Understand Medium
advantages, disadvantages of
renewable energy sources.
Discuss the contribution of
renewable energy sources as on
2022 under international level in
6. CO1 Understand Medium
energy consumption &generation.
Forecast the global future energy
management in 2040.
Explain about the different types of
7. CO1 Understand Medium
energy sources.
Discuss about the non-conventional
8. CO1 Understand Medium
energy Sources.
Briefly explain the various types of
9. CO1 Understand Medium
non-conventional energy sources.
Briefly explain the limitations of
10. CO1 Understand Medium
Renewable Energy (RE) sources.
Demonstrate the importance of
11. CO1 Create High
renewable sources of energy.

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Compose the necessity of

sustainable design and
12. CO1 Create High
development for the prosper growth
of human life in the world.
Generalize the present Indian and
13. international energy scenario of CO1 Create High
conventional and RE sources.
Evaluate the important role of
14. conventional and non- conventional CO1 Evaluate High
energy sources.

UNIT – II
SOLAR ENERGY

PART–A
CO
Q. No Questions BT Level Complexity
Mapping
1. Define collector efficiency. CO2 Remember Low
Draw the equivalent circuit of solar
2. CO2 Create High
cell.
List the advantages of
3. concentrating collector over flat CO2 Remember Low
plate collector.
4. Define global radiation. CO2 Remember Low
What is the principle of solar photo
5. CO2 Understand Low
voltaic?
The maximum efficiency of solar
6. cell are very low-justify this CO2 Analyze High
statement.
What are limitations of solar
7. CO2 Understand Medium
energy?
What are the indirect forms of solar
8. CO2 Understand Medium
energy?
How is the energy being
9. continuously being produce in the CO2 Understand Low
sun?
How does the collection of solar
energy is affected by tilting a flat
10. CO2 Understand Low
plate collector with respect to
ground?

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How does sun tracking helps in

energy collection by a flat plate CO2
11. Understand Medium
solar collector?
What is the average range of solar
12. radiation received on the earth’s CO2 Understand Medium
surface during day?
What are the main advantages of
13. CO2 Understand Low
flat plate solar collector?

14. Define solar radiation. CO2 Remember Low

Compare solar azimuth angle and
15. CO2 Evaluate High
zenith angle.
Express the estimation of average
16. CO2 Understand Low
solar radiation.

17. Define solar constant. CO2 Remember Low

State the principle involved in
18. CO2 Remember Low
generating solar power.
State the working principle of
19. CO2 Remember Low
pyranometer.
Formulate the I-V Characteristics
20. CO2 Create High
of PV System.
List the different types of PV
21. CO2 Remember Low
Systems.

PART–B

CO
Q. No Questions BT Level Complexity
Mapping
Explain Different types of solar
1. CO2 Understand Medium
energy collector with neat diagram.
Explain the operation of stand alone
2. &grid interactive solar PV system CO2 Understand Medium
With help of block diagram.
Discuss the construction & working
3. principle of central receiver power CO2 Understand Medium
plant.
Explain the perturb and observe
4. CO2 Understand Medium
MPPT algorithm with a flowchart.

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What are the applications of solar

pond?With help of neat sketch
explain the working of solar pond?
5. CO2 Understand Medium
What are the operational problems
associated with its operation &
maintenance?
What is beam, diffuse & global
radiation?Which instruments are
used for the measurement of theses
6. CO2 Understand Medium
radiation?Explain working of solar
pyranometer for measuring global
radiation.
Explain the working of solar water
7. heating With the help of a CO2 Understand Medium
schematic diagram.
Explain mechanism of
8. CO2 Understand Medium
photoconduction in a PV cell.
Describe in detail about the PV
9. module equivalent circuit and its I- CO2 Understand Medium
V characteristics.
Explain the working of thermal
10. CO2 Understand Medium
energy storage system with PCM.
Develop the application of
11. CO2 Create High
photovoltaic system in various field.
Explain the process of
photosynthesis. How much energy
is stored through the process? In
12. CO2 Understand Medium
what range of frequency spectrum
of solar light photosynthesis is most
marked?
Briefly explain the construction and
13. working principle of Solar Thermal CO2 Understand Medium
Power Plant.
Evaluate the series and parallel
14. connection of Solar Photovoltaic CO2 Evaluate High
system with neat sketch.
Explain the construction and the
principle operation of solar CO2
15. Understand Medium
photovoltaic system With a neat
sketch.

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Explain the working of solar

16. thermal water pump with the help of CO2 Understand Medium
schematic diagram.
Summarize the maximum power
point tracking in the Solar Photo
17. CO2 Create High
voltaic system and discuss the
advantages and disadvantages.
UNIT – III
WIND ENERGY

PART–A

CO
Q. No Questions BT Level Complexity
Mapping
What is the condition for maximum
1. CO3 Understand Low
output power from wind turbine?
List the two important wind turbine
2. CO3 Remember Low
generator installations in India.
Compare Horizontal axis & vertical
3. CO3 Evaluate High
axis wind turbine.
List the factors which determine the
4. CO3 Remember Low
power in wind.
List the advantages of Wind
5. CO3 Remember Low
Energy.
What is meant by yaw control?what
6. CO3 Understand Medium
is the use of it?
What range of wind speed is
7. considered favorable for wind CO3 Understand Low
power generation?
List main components of Wind
8. CO3 Remember Low
power plant.
Classify different types of Wind
9. CO3 Analyze High
power plant.
What type of generator used in wind
10. CO3 Understand Medium
power plant?
List the major application of wind
11. CO3 Remember Low
power.
12. Define Pitch angle. CO3 Remember Low
Write on the environmental impact
13. CO3 Understand High
of wind energy.

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Mention the advantages of grid tied

14. CO3 Remember Low
wind power plant.
What factors led to the accelerated
15. CO3 Understand Low
development of wind power?
16. Define tip speed ratio. CO3 Remember Low
What are the most favourable sites
17. CO3 Understand Low
for installing wind turbines?
State the mechanism of production
18. CO3 Remember Low
of local winds.
19. Define Wind Power. CO3 Remember Low

PART–B
CO
Q. No Questions BT Level Complexity
Mapping
Describe the working of wind
1. power system and its components CO3 Understand Medium
with a neat schematic diagram.
Explain the working of grid tied
2. wind power system with a neat CO3 Understand Medium
schematic diagram.
Discuss the various considerations
3. taken into account for the site CO3 Understand Medium
selection of wind energy system.
Explain the peak power tracking in
4. CO3 Understand Medium
WECS.
Derive the equation for power
generated from a wind turbine.
CO3 Create High
5. Derive Betz limit for Power
generation in wind turbine.
How energy from wind can be
extracted? Explain the process by CO3 Understand Medium
6.
using suitable diagram.
Explain the construction and
working of Vertical Axis Wind CO3 Understand Medium
7.
Turbine (VAWT).
Explain about the various types of
8. CO3 Understand Medium
Wind Power Plant (WPPs).
Explain the construction and
9. CO3 Understand Medium
working of Horizontal Axis Wind

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Turbine (HAWT).
Summarize the Grid integration Create High
10. CO3
issues of WPPs.
Comment on relative features of
11. CO3 Evaluate High
HAWT and VAWT.
Discuss the power versus wind
12. speed characteristics of a wind CO3 Understand Medium
turbine With the help of a diagram.
Summarize the environmental
High
13. impact due to installation of Wind CO3 Create
power plant.

UNIT – IV
BIO-ENERGY
PART–A
CO
Q. No Questions BT Level Complexity
Mapping

1. List out the types of water turbine. CO4 Remember Low

Draw the aerobic digestion of

2. organic waste by 3 stage Create High
CO4
biochemical processing techniques.
How biogas is obtained?what is the
3. CO4 Understand Medium
composition of biogas?
4. Name the constituents of biomass. CO4 Remember Low
What are the different forms of
5. CO4 Understand Low
biomass available a bio fuels?
Discuss the environmental benefits
6. CO4 Understand Low
of biomass resources.
What are the different forms of
7. CO4 Understand Medium
biomass available a bio fuel?
8. What is Biomass? CO4 Understand Medium
What do you understand by energy
9. CO4 Understand Low
farming?
Write the organic materials used in
10. CO4 Understand Low
biomass plant.
What is the main advantage and
11. CO4 Understand Low
disadvantage of biomass energy?
12. What is the origin of biomass CO4 Understand Low

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energy? What is its global

potential?
Summarize various biomass
Create High
13. feedstock used for bioenergy CO4
generation.
What is average efficiency of
14. photosynthetic conversion of solar CO4 Understand Medium
energy in to biomass?
List the factors affecting biogas
15. CO4 Remember Low
generation.

PART–B

CO
Q. No Questions BT Level Complexity
Mapping
Describe the working of Bio gas
1. plant and its components with a neat CO4 Understand Medium
schematic diagram.
Explain the working of floating
type Bio gas plant with the neat
diagram.What are the properties of
2. CO4 Understand Medium
Bio gas ?What are the advantages &
disadvantages of using bio gas as
fuel?
i) Describe in detail the anaerobic
digestion process.
3. ii) Explain the parameters to be CO4 Understand Medium
controlled to achieve the biogas
production efficiency.
i) What is Bio mass? Various
principles of bio conversion &
their energy products describe
4. in detail. CO4 Understand Medium
ii) Explain the working of fixed
dome type Bio gas plant with the
neat diagram.
Describe Pyrolysis process of
5. CO4 Understand Medium
biomass digestion.
Explain any one type of gasifier
6. with neat line diagram.Mention the CO4 Understand Medium
merits & demerits of the same.

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Compare the relative performance

7. of a floating drum and fixed one CO4 Evaluate High
type biogas plants.
Explain the impacts of biomass
8. construction, production and CO4 Understand Medium
operation.
Differentiate between the following
methods of biogas generation
9. i) Pyrolysis, CO4 Understand Medium
ii) Combustion.

Discuss the following methods of

biogas generation
10. CO4 Understand Medium
i) Gasification,
ii) Anaerobic Digestion.
UNIT – V
OCEAN AND GEOTHERMAL ENERGY
PART–A
CO
Q. No Questions BT Level Complexity
Mapping
Define tidal range with respect to
1. CO5 Remember Low
the tidal power plant.
What is OTEC? Which
2. thermodynamic cycle is used in CO5 Understand Medium
OTEC?
List different methods of energy
3. CO5 Remember Low
storage.
What are the limitations of
4. CO5 Understand Low
harnessing wave energy?
What are the advantages and
5. disadvantages of Geo-thermal CO5 Understand Low
energy?
What are the special problems in
6. construction of barriers for tidal CO5 Understand Low
scheme?
How is electricity generated from
7. CO5 Understand Medium
Geo-thermal energy?
Write the advantages of tidal power
8. CO5 Understand Low
generation.
What are the limitations of
9. CO5 Understand Low
harnessing Geo-thermal energy?

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Write the factors determines the

10. maximum length and height of CO5 Understand Medium
ocean waves.
11. What is hydrogen energy? CO5 Understand Low
List methods of Hydrogen Energy
12. CO5 Remember Low
Storage.
13. What is Geo-thermal energy? CO5 Understand Low
What is the cause for the tides on
14. CO5 Understand Low
the ocean?
Give the overall efficiency of an
15. CO5 Understand Medium
OTEC power plant.
PART-B
CO
Q. No Questions BT Level Complexity
Mapping
What is the Geothermal energy?
What are the various methods of
1. harnessing this energy ? What is the CO5 Understand Medium
potential of geothermal energy in
India?
Describe in detail the operation of
2. CO5 Understand Medium
double basin type tidal power plant.
i) Describe in detail about the
various methods of energy
harvest technology in
geothermal sources.List the
3. CO5 Understand Medium
merits & demerits.
ii) Elaborate the site selection
process for micro hydro power
plant.
Discuss the following:
4. i) OTEC open cycle, CO5 Understand Medium
ii) OTEC closed (Anderson) cycle.
What is the basic principle of tidal
energy? Explain the principle of
working of simple tidal energy
5. CO5 Understand Medium
conversion plant. What is the status
of tidal power plants in the world
and in India?

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Discuss, what is the minimum tidal

range required for the working of
6. CO5 Understand Medium
tidal plant. Explain how much the
potential in tides is.
Explain with neat sketch, the
7. methods of operation of tidal power CO5 Understand Medium
generation.
Write the sequence of energy
transformation taking place in the
following places
8. CO5 Understand Medium
i) Hydro power plant,
ii) Tidal power plant,
iii) Geo-thermal power plant.
Describe the single basin
9. arrangement in tidal power CO5 Understand Medium
generation.
Write short notes on wave energy
10. CO5 Understand Medium
conversion machines.
Summarize in details about different
11. types of hydro Electric Energy CO5 Create High
systems with neat diagram.

THANK YOU

ALL THE BEST

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