HallTicketNo Question Paper Code:AME525
INSTITUTE OF AERONAUTICAL ENGINEERING
(Autonomous)
Dundigal, Hyderabad - 500 043
B. Tech VI Semester End Examinations (Regular), May – 2019 Regulations: IARE-R16
SOLAR ENERGY SYSTEMS
(MECHANICAL ENGINEERING)
Time: 3hours Max. Marks: 70
Answer ONE Question from each Unit All Questions Carry Equal Marks
All parts of the question must be answered in one place only
UNIT – I
1. a) Explain wein’s displacement law. So that black radiation curve for different temperature peaks at a wavelength inversely proportional to temperature.
[7M]
b) A bulb of 60 Watt has area of 0.002 m2. If it has emissivity of 0.76, what would be its temperature?
[7M]
2. a) Derive an expression for Einstein’s derivation of the blackbody radiation. What are
assumptions to be taken into account? [7M]
b) Derive Stefan-Boltzman constant for radiation of body taking ambient temperature 300C.
[7M]
UNIT – II
3. a) Explain intensity of sunlight on an arbitrary surface at any time with a neat sketch. [7M]
b) Explain solar time, side real time, universal standard time, local standard time in detail [7M]
4. a) Define solar constant. How measurement of solar constant. what are different ways to
measure solar constant. [7M]
b) Briefly explain air mass and Rayleigh scattering, Differentiate between direct sunlight and scattered sunlight.
[7M]
UNIT – III
5. a) Explain thin film solar cells and list out the advantages of thin film solar cells. [7M]
b) A 1 cm2silicon solar cell has a saturation current of 10-12A and is illuminated with sunlight yielding a short-circuit photo current of 25 mA. Calculate the solar cell efficiency and fill factor.
[7M]
6. a) Explain Shockley junction diode. Differentiate between silicon tandem solar cells and organic solar cells.
[7M]
b) What is a p-n junction diode? Explain formation of P-N Junction diode with neat sketch.
[7M]
UNIT – IV
7. a) Explain solar radiation at the earth surface, how solar radiation is measured, what are
measurements instruments used. [7M]
b) Explain photovoltaic applications battery charger with a neat sketch, with a circuit diagram, what is electrical output generation.
[7M]
8. a) Explain about solar pv power plant, with a neat sketch, discuss the thermal efficiency of the plant.
[7M]
MODEL QUESTION PAPER
b) Explain about battery charger, with a neat sketch, discuss the thermal efficiency of the plant.
[7M]
UNIT-V
9. a) Discuss about trough collector in detail, Discuss in detail the performance of typical
solar pv power plant. [7M]
b) Explain collectors in detail, Discuss why parabolic dish concentrator with on axis tracking is better than linear collectors.
[7M]
10. a) Summarize necessity of storage of solar energy, specify merits, demerits and
applications in detail. [7M]
b) Explain the solar thermal electricity using stirling engine with a neat sketch. [7M]
INSTITUTE OF AERONAUTICAL ENGINEERING
(Autonomous)
Dundigal, Hyderabad - 500 043
COURSE OBJECTIVES:
The course should enable the students:
I Understand the concept related various laws in solar engineering
II Outline the basic idea of solar energy collecting as well as energy storage devices.
III Development of solar cells and photo voltaic cells.
COURSE LEARNING OUTCOMES:
Students, who complete the course, will have demonstrated the ability to do the following:
AME525.01 Understand types and applications of various form of energy sources and its environmental impacts.
AME525.02 Construct a practical knowledge on various devices of solar PV systems and trying with an assortment of parameters.
AME525.03 Generate perception on practice usages of solar PV gadgets/ industrial utilities AME525.04 Explain the various characteristics of the solar cell under local climatic working
conditions
AME525.05 Visualize the performance of the Solar PV cell under various specified operating temperature ranges and will be able to relate it with nominal values.
AME525.06 Explain to clarify impression of various solar thermal energy collectors.
AME525.07 Summarize the basic economics of solar energy collection system.
AME525.08 Delineate the other applications and the devices used to collect solar energy.
AME525.09 Explain the performance of the solar PV cell under various specified operating temperature ranges and will be able to relate it with nominal values.
AME525.10 Understand the concept and the diverse materials used for solar devices
AME525.11 Explicate in depth knowledge of about solar cells, thermal energy storage and electrical energy storages
AME525.12 Learn the fundamental concepts about solar energy systems and devices
AME525.13 Study about approaches for the storage of solar energy along with solar energy collectors AME525.14 Explain the fundamental concepts of solar energy power generating systems and devices AME525.15 Analyze various types of energy storage devices and perform the selection based on
tecno-economic view point.
AME525.16 Explore the use of modern engineering tools, software and equipment to prepare for competitive exams, higher studies etc.
Mapping of Semester End Examinations to Course Learning Outcomes:
SEE Question
No.
Course Learning Outcomes
Blooms Taxonomy
Level
1
a AME525.01 Understand types and applications of various form of energy
sources and its environmental impacts. Understand
b AME525.02 Construct a practical knowledge on various devices of solar PV
systems and trying with an assortment of parameters. Remember
2
a AME525.02 Construct a practical knowledge on various devices of solar PV
systems and trying with an assortment of parameters. Understand b AME525.03 Understand a problem and apply the fundamental concepts and
enable to solve problems arising in metal removal process. Remember
3
a AME525.04 Explain the various characteristics of the solar cell under local
climatic working conditions Understand
b AME525.04 Explain the various characteristics of the solar cell under local
climatic working conditions Remember
4
a AME525.05
Visualize the performance of the Solar PV cell under various specified operating temperature ranges and will be able to relate
it with nominal values. Understand
b AME525.05
Visualize the performance of the Solar PV cell under various specified operating temperature ranges and will be able to relate
it with nominal values. Remember
5
a AME525.06 Explain to clarify impression of various solar thermal energy
collectors. Understand
b AME525.09
Explain the performance of the solar PV cell under various specified operating temperature ranges and will be able to relate it with nominal values.
Remember
6
a AME525.12 Learn the fundamental concepts about solar energy systems and
devices Understand
b AME525.08 Learn the fundamental concepts about solar energy systems and
devices Remember
7
a AME525.01 Understand types and applications of various form of energy
sources and its environmental impacts. Understand
b AME525.11 Explicate in depth knowledge of about solar cells, thermal
energy storage and electrical energy storages Remember
8
a AME525.11 Explicate in depth knowledge of about solar cells, thermal
energy storage and electrical energy storages Understand b AME525.14 Explain the fundamental concepts of solar energy power
generating systems and devices Remember
9
a AME525.14 Explain the fundamental concepts of solar energy power
generating systems and devices Understand
b AME525.12 Learn the fundamental concepts about solar energy systems and
devices Remember
10
a AME525.15 Analyze various types of energy storage devices and perform the
selection based on tecno-economic view point. Understand b AME525.15 Analyze various types of energy storage devices and perform the
selection based on tecno-economic view point. Remember
