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LOGO
Conservation of energyConservation of energy
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ContentsContents
Conventional1
Non Convention sources2
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DiagramDiagram
Conventional
sources.
Sources which
are exhaustable
Sources
Non
Conventional
sources.
Sources whichare not
exhaustable
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Conventional SourcesConventional Sources
Energy sources which areexhaustable in nature are calledconventional sources.
Eg:Coal,Petrol ,etc.
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Cycle DiagramCycle Diagram
Petrol
WoodCoal
Fossilfuels
Diesel
Conventional
sources
Conventional
sources
Exhaustable
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CoalCoal
Coal varies in quality according to the amountof pressure and heat to which it is subjected
to during its formation
It consists largely of carbon, hydrogen,
oxygen and a small amount of sulphur and
nitrogen
It is formed in layers called seams and takes
millions of years to be formed
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WoodWood
It is a major source of energy for man as itis widely used for cooking and heating
It is a primary fuel which can be used
directly to produce heat
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Fossil FuelsFossil Fuels
It includes fuels which are mostcommonly used such as wood, coal andpetroleum.
These fossil fuels are non-renewablesources of energy. Therefore we need toconserve them
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Dis advantagesDis advantages
A major portion of heat produced byburning wood is lost to the surroundings
and only 8% of the total heat is actually
used for cooking food leading to hugewastage of fuel
It produces a lot of smoke due to
incomplete combustion leading to
pollution and health hazards
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Non conventionalNon conventional
Energy sources which are notexhaustable in nature are called
conventional sources.
Eg:W
ind, hydro,etc.
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Cycle DiagramCycle Diagram
Geothermal
WindHydro
Solar
Biofuel
Non
conventional
sources
Non
conventional
sources
Non exhaustable
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How can electricity be made???How can electricity be made???
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Wind powerWind power
Power which is generated with the help ofwind energy is called wind powered
energy.
Wind power is renewable and produces nogreenhouse gases during operation, such
as carbon dioxide and methane.
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HydropowerHydropower
Energy in water can be harnessed and used iscalled hydropower energy.
Hydroelectric energy is a term usually reserved
for large-scale hydroelectric dams.
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Solar energySolar energy
Solar energy is the energy derived from the sunthrough the form of solar radiation. Solar
powered electrical generation relies on
photovoltaics and heat engines.
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BiofuelBiofuel
Liquid biofuel is usually either bioalcoholsuch as bioethanol or an oil such as
biodiesel..
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Geothermal energyGeothermal energy
Geothermal energy is energy obtained bytapping the heat of the earth itself, both from
kilometers deep into the Earth's crust in some
places of the globe or from some meters in
geothermal heat pump in all the places of theplanet.
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Adantages of non conventional sourcesAdantages of non conventional sources
solar energy - the sun will always be there, and in abundance - the
amount of solar energy intercepted by the Earth every minute is
greater than the amount of energy the world uses in fossil fuels each
year.
wind energy - the wind will always exist.
tidal energy - the moon which provides the forces that causes the
tides.
hydroelectric energy - unless there is a drastic change in rain
patterns.
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Disadvantages of renewable energy?Disadvantages of renewable energy?
solar -- panels are expensive. Governments are not all willing to buy home
generated electricity. Not all climates are suitable for solar panels.
wind -- turbines are expensive. Wind doesn't blow all the time, so they have
to be part of a larger plan.
waves -- different technologies are being tried around the world.S
cientistsare still waiting for the ultimate development.
tides -- barrages (dams) across river mouths are expensive to build and
disrupt shipping. Smaller turbines are cheaper and easier to install.
rivers -- Dams are expensive to build and disrupt the environment. Smallerturbines are cheaper and easier to install.
geothermal -- Difficult to drill two or three kilometers down into the earth.
biofuel -- often uses crop land or crops (like corn) to produce biofuel so the
price of cheap food goes up.
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Electricity used by India.Electricity used by India.
India is world's 6th largest energyconsumer, accounting for 3.4% of global
energy consumption.
India produces 680 billion kWH
. India Utilizes 517.2 billion kWh.
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GenerationGeneration
Thermal Power:
Current installed capacity of Thermal
Power (as of 12/2008) is 93,392.64 MW
which is 64.7% of total installed capacity. Hydro Power:
The installed capacity as of 2008 was
approximately 36647.76MW Nuclear power:
Currently, nineteen nuclear power reactors
produce 4,560.00 MW
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2006 2007 2008 2009(billionkhw)
519 587 517 560
StatsStats
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LOGO
APresentation by:
Veleta Concessao. 4007
PeterShaon Fernandes. 4018Jyotsna Shetty . 4036
Francis Swamy. 4039
Sheldon Sequeira. 4054
Rhea Jacob. 4065Rema Dcunha. 4071