The document discusses the negative environmental impacts of burning fossil fuels and the need to transition to renewable and clean energy sources. It states that millions of tons of fossil fuels are burned daily, releasing thousands of tons of toxic substances into the environment which are destroying nature and causing problems like global warming and acid rain. However, solar energy is highlighted as a clean energy source that does not produce harmful byproducts or damage the natural environment. The document promotes solar energy as a sustainable solution and clean energy for Pakistan.

1. Million of tons fossil fuels are burned every day
and thousands tons toxic and harmful substances
are exhausted into the environment. Which are
destroying nature and creating serious problem
for the existence of human life in earth, global
warming , acid rain and toxic smog all are the
products of human frustration for moderniza-
tion and development. Man is destroying
nature from many decades with out sustaina-
ble development. But it need of our to move to
ward renewable and clean energy sources.
Clean energy sources are all those sources
which doesn't produce any by-products
which are toxic and harmful to nature and
human. Solar energy is a Clean energy , it
doesn’t emit any such substance. It
doesn't create damage our natural envi-
ronment but protects it. Solar energy is a
blessing .
A step towards
Green Pakistan
Vigilant Engineers
Vigilant Engineers
Department of Chemical Engineering
Hafiz Hayat Campus ,University of Gujrat ,Gujrat
Phone: 92-331-6204216
E-mail: zahidalizafar@gmail.com
Solar Energy ,
A Clean energy
Solar Water
Heater
(SWH-R01)
“Utilization Of Solar
Energy For Clean
Environment”
University of Gujrat,Gujrat Pakistan

2. Phone: 92-331-6204216
E-mail: zahidalizafar@gmail.com
Department of Chemical Engineering
Hafiz Hayat Campus ,University of Gujrat ,Gujrat
Vigilant Engineers
Solar water heater (SWH-R01) is direct loop ac-
tive type solar water heater, it is equipped with
circulation pump and a temperature controller
system which make it more cost-effective.
Economics
Solar water heater requires once capital invest-
ment and then it has very less/zero running
cost ,which made it very cost-effective. Following
table gives comparison between solar water and
conventional water heating.
Energy is vital for running
any process and one way to
get energy is Combustion, since the human dis-
covered the fire, the process of combustion is
carrying on and tons of toxic and harmful flue
gases are being thrown into the atmosphere.
With the passage of time the demand for energy
is increased and this process of combustion is
manifold thousands of times. These toxic and
harmful gases changed the natural atmosphere
and created the problem of global warming and
become cause of many diseases.
Now it is time to discover new and sustainable
energy sources that have not any bad effect on
environment. Man had realized what he had done
with nature and started research and work to find
out more sustainable and clean energy sources.
It results in the form of renewable energy which is
wind, hydroelectricity, geothermal, biofuels, bio-
mass, sunlight etc.
Sun is universal and biggest source of energy in
the universe. It delivers immense amount of ener-
gy to earth that is free and clean energy .it means
it doesn’t harm environment .This energy can be
now utilized for different purposes. Solar water
heating one of better way to utilize solar energy.it
is very cost-effective method for domestic water
heating and doesn't emit any harmful by-product
to environment.
Solar Water Heater
Solar water heating systems consist of a solar collector
and a storage tank connected by two pipes. When sun
rays fall on the solar collector they transmit their energy
to the wa-
ter in the
solar col-
l e c t o r ' s
channels
in the form
of heat
and water
becomes
hot. This water is then used according to need and de-
mand.
Solar Water Heater (SWH-R01)
Solar water heater (SWH-R01)
is designed to enhance the
efficiency of solar water heat-
er. Its special design differenti-
ate it from other solar water
heaters, Basically it has Para-
bolic reflector type collector,
with cupper tubes. which en-
hance its efficiency due to
dual effect of Parabolic shape
reflecting surface and direct
sun rays.
Why Solar
Energy?
Heaters
Con-
cept
Solar
Water
Heater
Electric Gas Gey-
ser
Life 15 yr. 5 yr. 5 yr
Daily
Output
500C
water
(Kg)
Winter
200lit./
summer
80lit.
Winter
200 lit.
/ sum-
mer 80
lit.
Winter
200 Lit/
summer
80 Lit.
Money
for
energy
per
year
Rs.0.00 Rs.
6975.
00
Rs.
1596.00
Risk No Yes Yes
Pollu-
tion
No Yes Yes