energy sourcess and their classifications, fossil fuesl and solar energy
TRANSCRIPT
-
7/29/2019 Energy Sourcess and Their Classifications, Fossil Fuesl and Solar Energy
1/27
Energy
-
7/29/2019 Energy Sourcess and Their Classifications, Fossil Fuesl and Solar Energy
2/27
What is Energy?
That which helps in doing work is Energy
-
7/29/2019 Energy Sourcess and Their Classifications, Fossil Fuesl and Solar Energy
3/27
Forms of energy
Heat Light Sound
Magnetic Electricity Chemical
-
7/29/2019 Energy Sourcess and Their Classifications, Fossil Fuesl and Solar Energy
4/27
Sources of energy
Biggest source of energy is ourSun
Some other sources are Coal Wood
Wind
Water
Food
Electricity
Primary Sources of Energy
Secondary Sources of Energy
-
7/29/2019 Energy Sourcess and Their Classifications, Fossil Fuesl and Solar Energy
5/27
Sources of energy
Conventional sources Coal
Oil
Gas
These sources of energy are being used as
fuel for very long time
They are known as conventional sources ofenergy
Non- conventional sources Solar
Wind
Agricultural waste
Forestry waste
Biofuel
These sources have not beentraditionally used as Energy source
However, these sources will alwaysbe available in nature and arerenewable
Hence it is best to use non-conventional sources
Example Hydro-electric power projectlocated at Koyna dam in Maharashtra
-
7/29/2019 Energy Sourcess and Their Classifications, Fossil Fuesl and Solar Energy
6/27
-
7/29/2019 Energy Sourcess and Their Classifications, Fossil Fuesl and Solar Energy
7/27
-
7/29/2019 Energy Sourcess and Their Classifications, Fossil Fuesl and Solar Energy
8/27
-
7/29/2019 Energy Sourcess and Their Classifications, Fossil Fuesl and Solar Energy
9/27
-
7/29/2019 Energy Sourcess and Their Classifications, Fossil Fuesl and Solar Energy
10/27
SOLAR WATER HEATER
-
7/29/2019 Energy Sourcess and Their Classifications, Fossil Fuesl and Solar Energy
11/27
FLAT PLATE CONNECTOR
It is the most common type ofcollector used for solar water
heating.
Insulated, weather-proof box
containing a dark absorber plate
under a transparent cover.
Heat absorbed is transferred to
the tubes, which carry water or
the working fluid.
The efficiency of the system can
be increased by adding an
additional glass plate. The temp. Of water achieved is
around 80 C.
-
7/29/2019 Energy Sourcess and Their Classifications, Fossil Fuesl and Solar Energy
12/27
Evacuated tube collector
Made up oftransparent, parallel
glass tube.
Each tube consists
glass outer tube and
an inner tube or
absorber.
It is not verycommon.
-
7/29/2019 Energy Sourcess and Their Classifications, Fossil Fuesl and Solar Energy
13/27
Concentrating Collector
Also called Parabolic focussing Collector.
Usually made up of parabolic shaped
mirror that concentrates the suns energy
On the absorber tube.
-
7/29/2019 Energy Sourcess and Their Classifications, Fossil Fuesl and Solar Energy
14/27
SOLAR CONCENTRATORS
-
7/29/2019 Energy Sourcess and Their Classifications, Fossil Fuesl and Solar Energy
15/27
Thermosyphon System
It uses a flat platecollector and a separate
storage that is located
higher than the collector
level.
The storage tank may ormay not use a heat
exchanger.
It is more costly and
complex in
manufacturing.
-
7/29/2019 Energy Sourcess and Their Classifications, Fossil Fuesl and Solar Energy
16/27
The solar cell
A solar cell is made using thin disc made ofpuresi l icon
Solar energy is converted into electricity in the solar cell
-
7/29/2019 Energy Sourcess and Their Classifications, Fossil Fuesl and Solar Energy
17/27
SOLAR CELLS - HOUSES
-
7/29/2019 Energy Sourcess and Their Classifications, Fossil Fuesl and Solar Energy
18/27
SOLAR POWER PLANT
-
7/29/2019 Energy Sourcess and Their Classifications, Fossil Fuesl and Solar Energy
19/27
Active Solar Water Heating
An active system uses an electric pump tocirculate water through the system.
There are five major systems in active solar
water heating:-
1. Solar collector
2. Circulation System
3. Storage Tank
4. Backup Heating System
5. Control System
-
7/29/2019 Energy Sourcess and Their Classifications, Fossil Fuesl and Solar Energy
20/27
Direct Systems
Two types:-1. Drain down
2. Re-collecting
In the re-circulatingsystem , heated
water from the
storage tank is
pumped through thecollectors when the
temperature drops to
a set value.
-
7/29/2019 Energy Sourcess and Their Classifications, Fossil Fuesl and Solar Energy
21/27
DIRECT SYSTEM
Re-circulating type
direct Solar Heating
System
-
7/29/2019 Energy Sourcess and Their Classifications, Fossil Fuesl and Solar Energy
22/27
INDIRECT SYSTEMS
Drain-back
hot water
system
-
7/29/2019 Energy Sourcess and Their Classifications, Fossil Fuesl and Solar Energy
23/27
Indirect System
The drain back system uses distilled water asthe working fluid.
The collectors in this system will have the
distilled water in them when the pump is
operating.
-
7/29/2019 Energy Sourcess and Their Classifications, Fossil Fuesl and Solar Energy
24/27
FOSSIL FUEL
Fuels which areformed underground
from plant and animal
remains millions of
years ago,are calledas fossil fuels.
Solid Fuels Liquid Fuels
Gaseous Fuels
-
7/29/2019 Energy Sourcess and Their Classifications, Fossil Fuesl and Solar Energy
25/27
Solid Fuels
Coal is the principalsolid energy source.
Originated from
vegetable matter,
which grew millions
of years ago and
buried.
Charcoal and Cokeare prepared solid
fuels
According to order of
formation, coal is
called peat, lignite.
Sub-bituminous,
bituminous, subanthracite, anthracite
with increasing % of
carbon.
-
7/29/2019 Energy Sourcess and Their Classifications, Fossil Fuesl and Solar Energy
26/27
-
7/29/2019 Energy Sourcess and Their Classifications, Fossil Fuesl and Solar Energy
27/27