Presentation on energy resources ppt .pdf

Presentation on energy resources.

1. INTRODUCTION :
An energy system is a set of conversion technologies that convert energy
resources, such as energy from the sun, into forms that we can utilize for hu man
needs. Have students research an energy question of their own with the Ener gy
Sources
Research
activity
Energy
resources
are
available
in
our
natural
world
Sources
Research
activity
.
Energy
resources
are
available
in
our
natural
world
.
Solar energy is responsible for almost all of these resources. The sun is
responsible for the uneven heating of the Earth that causes wind and sunlig ht and
plant photosynthesis creates biomass materials such as wood o
r
corn that we can
convert into useable energy.
For example, sunlight can’t be directly used as power for a radio. A solar
photovoltaic panel must be used for energy conversion for usable energy.

2. ENERGY SYSTEM: ENERGY

SYSTEM:
An energy system is a system primarily designed to supply energy-services to end-
users. In the field of energy economic s includes energy markets and treatsan energy
system as the technical and economic systems that satisfy consumer demandfor
i
th
f
f
ht
fl
d
ltiit
Th
fi t
t
dfiiti
ll
f
energy
in
th
e
f
orms o
f
h
ea
t
,
f
ue
ls, an
d
e
lec
t
r
ic
ity
.
Th
e
fi
rs
t
t
wo
d
e
fi
n
iti
ons a
ll
ow
f
o
r
demand-side measures, including day lighting, retrofitted building ins ulation, and
passive solar building design, as well as socio-economic factors, such asaspects of
energy demand management and even telecommuting.

3. ENERGY
REOURCES
:
ENERGY
REOURCES
:
Energy resources that are replenished at the same rate that we use them are defined
as renewable energy resources. Solar, wind, geothermal and tidal energy are examples
of renewable energy. Biomass can be renewable if we use the plant material at the
same rate that it re-grows. But, if we chop down and burn all t he trees in a short period
of time
,
that resource is not considered renewable.
,
Fossil fuels are also a form of solar energy because they were generated from biomass
materials millions of years ago. They are not renewable because we are using them at
a much faster rate than they are being regenerated a

much

faster

rate

than

they

are

being

regenerated
.
TYPE OF ENERGY RESOURCES:
• Fossil fuels – chemical (petroleum, natural gas, coal)
Ui
l
•
U
ran
ium
–
nuc
lea
r
• Biomass – chemical
• Geothermal – heat (generated from nuclear processes within the Earth)
•
Hydro
–
mechanical
Hydro

mechanical
• Wind – mechanical • Solar - electromagnetic

4. DIFFERENT ENERGY
TYPE
:
DIFFERENT

ENERGY
TYPE

:
BIOMASS ENERGY:
Energy released from plants (wood, corn, etc.) through combustion or
other chemical process.
FOSSIL FUEL ENERGY:
A
non-renewable energy resource that began to form millions of
years ago from the remains of once living plants and animals. I ts current forms include
petroleum, coal and natural gas. geothermal energy : Heat energy from the Earth.
HYDROPOWER ENERGY:
Transformation of the energy stored in a depth of water into
electricity.
NON
-
RENEWABLE ENERGY:
Resources such as fossil fuels that cannot be replaced by
NON
RENEWABLE

ENERGY:
Resources
,
such

as

fossil

fuels
,
that

cannot

be

replaced

by

natural processes at the same rate it is consumed.
PEAK OIL:
The point at which the rate that a non-renewable resource (oil) can be
produced declines due to the limitat ions of extraction processes and the availability of the
resource.
PHOTOVOLTAIC:
A chemical process that releases electrons from a semi-conductor
material in the presence of sunlight to generate electricity.

5. RENEWABLE ENERGY:
Resources, such as wind and water, that can be recycled or repl aced at a rate faster than
they are consumed they

are

consumed
.
SOLAR ENERGY:
Energy from the sun; often captured directly as heat or as elec tricity
through a photovoltaic process. system component: One process in a system comprised
of many processes or components. uranium: An element that releas es heat as it
undergoes radioactive decay.
WIND ENERGY:
Energy transferred with the motion of air in the lower atmosphe re that
arises from differential heati ng of the Earth. The energy in th e wind can be extracted as
mechanical energy to do work such as grind grains (a wind mill) or generate electricity
(wind turbine) (wind

turbine)
.

6. RENEWABLE ENERGY

7. Engineering Connection:
Energy "systems" developed by engineers are comprised of numerous components that
work together to get the energy content of the energy resource converted in to a form that
is useful to the user and delivered to the customer. All of the components in the system
must be carefull
y
desi
g
ned to work to
g
ethe
r
effectivel
y
.
y
g
g
y
Engineers are primarily responsible for the research, development and design of the
equipment that captures energy from renewable and fossil fuel resources f or human use.
Given the eventual decline in the availability of fossil fuel resources, e ngineers are
currently designing technologies forcapturing renewable energy resources that are more
efficient
reliable
and
economically
competitive
efficient
,
reliable
and
economically
competitive
.

8. THANK YOU