This document is a student assignment on energy and renewable energy sources. It contains sections on different forms of energy including thermal, electrical, and mechanical. It discusses renewable energy sources like solar, wind, geothermal, tidal, and biomass. It covers the concepts of energy conservation versus conversion. Conservation means energy stays constant while conversion means changing energy from one form to another. The document lists techniques for energy conservation and conversion. It also discusses the advantages and disadvantages of renewable energy and concludes that renewable energy is sustainable.

1. Rajshahi University of Engineering & Technology
ME 1255
Assignment on
Energy & Renewable Energy
Prepared By:
Al Nimra Kabir
Department of Mechatronics Engineering,
Rajshahi University of Engineering & Technology
Roll: 2008042
Haven’s light is our guide
Assigned By:
Md. Robiul Islam
Assistant Professor
Department of Mechatronics Engineering.
Rajshahi University of Engineering & Technology.

2. Table of Content
1 Energy
Fundamenta
ls
3
Conservatio
n
vs
conversion
2
Forms
&
Sources
Renewable
Energy 6 Sustainability
5
Advantages
&
Disadvantages
4

3. Energy is the ability to perform work in physics. It might exist in several
different forms, such as potential, kinetic, thermal, electrical, chemical,
radioactive, etc. Additionally, there is heat and work, which is energy
being transferred from one body to another.
What is Energy?

4. Thermal Energy
Thermal Energy
Electrical Energy
Mechanical Energy
Nuclear Energy
Chemical Energy
Light Energy
Radiant Energy
1
2
4
Forms
of
Energy
3
6
8
7
5
Energy forms

5. Energy Sources
Renewable Energy
• Collected from renewable
resources that are naturally
replenished on a human
timescale.
• Examples: Solar energy,
Wind energy, Geothermal
energy, Tidal energy,
Biomass energy,
Hydroelectric energy.
Non-renewable Energy
• cannot be readily
replaced by natural.
• Examples: Petroleum,
Fossil fuel, Nuclear
energy.

6. Conservation vs Conversion
Conservation
Conversion
According to the rule of conservation of energy, the overall energy of an
isolated system stays constant throughout time. According to this law, which
Émile du Châtelet initially suggested and tested, energy can only be changed or
moved from one form to another and cannot be generated or destroyed.
The process of converting energy from one form to another is called energy
transformation or energy conversion. Energy is a substance that gives one the ability
to do labor (like lifting an object) or give off heat. Energy can be transferred to another
place or object in addition to being transformed, but it cannot be generated or
destroyed, in accordance with the rule of conservation of energy.

7. Energy Conservation Techniques
Switching to Solar Energy
Buying Programmable
Thermostat
Usage of Maximum
Daylight
Usage of Energy Efficient
Appliances
Alternative Power
Lower the Room
Temperature
Installation
of
CFL Light

8. Energy Conversion Techniques
Biomass
Energy
Geothermal
Solar Cells
Chemical
Energy
Nuclear
Energy
Electricity
Geothermal

9. Energy that is derived from
resources that can be
regenerated naturally over time
and are thus considered to be
renewable.
RENEWABLE
ENERGY

10. RENEWABLE ENERGY SOURCES
Solar Energy
Solar energy is harnessed
using two primary
methods.
Wind Energy
In wind turbines, the
kinetic energy of the wind
may be harnessed to
produce electricity.
Geothermal
This energy source is heat
released from the crust of
the earth, typically in the
form of hot water or steam
that may be utilized to turn
a turbine and produce
electricity.

11. Biomass
Any plant material burned
directly or transformed into
another form before
combustion, such as
wood, vegetable waste
like crop and wood waste,
and animal products and
wastes, is referred to as
biomass.
Tidal Energy
Similar to a wind turbine, a
tidal energy generator
uses a turbine with
revolving blades that
depend on the strength of
the tide. The generator,
which generates power, is
turned by the gearbox
attached to the turbine.
Hydroelectric
Energy
Water's potential and
kinetic energy are
converted into electricity to
produce it. This makes a
sizable contribution to
overall energy
consumption in emerging
nations.
RENEWABLE ENERGY SOURCES

12. ADVANTAGES
DISADVANTAGES
ADVANTAGES
&
DISADVANTAGES
• Do not run out.
• Reduced maintenance needs
• Less reliance on imports for energy.
• Results in cleaner air and water.
• Spend less.
• High initial expenses.
• Little capacity for storing.
• Having geographical
restrictions.
• Not necessarily completely
carbon-free.

13. - Is Renewable Enenrgy Sustainable?
Cause 1 Cause 3
Cause 2
This energy
can be
regenerated
Long-time
accessibility
Efficiency can
be improved
with help of
technologies
- Yes.

14. THANKS!