saurabh suman,nuclear energy.pptx1.pptx 12
TRANSCRIPT
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Nuclear Energy
REPRESENTED BY:-• SAURABH SUMAN 5th sem.B.TECH(MECHANICAL)
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Agenda• Introduction• Origin and History• How it works• Constituents of Nuclear Energy• Advantage and Disadvantage• Effects of Nuclear Energy• Benefits to the society• Conclusion
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Introduction
• Uranium was discovered in 1789 by Martin Heinrich Kalproth, a German Chemist, and named after the planet Uranus.
• Over 1935-45,most development was focused on the atomic bomb.
• Uranium is a chemical element which has 92 protons and 92 electrons and denoted by “U”.
• Uranium is a silver-white in the actinide series of the periodic table.
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Origin and History
• 1950, start penetration of Nuclear power in Electricity Market.
• 1951,ERB-I initially produced about 100kw from nuclear reactor near Arco, Idaho.
• 1960,17 Nuclear power reactor with capacity of 1200MWe.
• 2016,49 countries,444 nuclear plant,387 GW in operation,11.5% world electricity.
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How it works
1.Nuclear Reaction:- A nuclear reaction is a process in which two nuclei or nuclear particles collide to produce different products than the initial particles.
2.It is based on Energy Conservation.
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3.Nuclear Fission Reaction:- Nuclear fission is the process in which a nucleus is
divided into two or more fragments, and neutrons and energy are released.
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3(a).Nuclear Chain Reaction:-
• When a neutron hits a “U-235” neutrons produced.
• Chain reaction is defined as a fission reaction, where neutron from the previous reaction continue to propagate and repeat the reaction.
• Equation:-
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Cnstituents of Nuclear power plant:-
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ADVANTAGEs OF Nuclear energy
Nuclear plants bring jobs and prosperity to a country.
Provides the world with the most of its electricity.Its good for the economy.Lots of energy is produced from a small amount of
uranium.Does not emit carbon dioxide green house effectGenerating electricity from nuclear energy causes
little pollution.
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Disadvantage of nuclear energyDisposing the nuclear waste is very difficult and needs
to be done after a lot of planning by the experts.The radioactive waste takes years to be no longer
hazardous.Waste must be stored very carefully for a long time.Nuclear power plants are very expensive to build.Uranium is not renewable and can lead to
environmental problems through mining and processing.
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Effects to the economy when you use Nuclear Energy
• Nuclear power is cost competitive with other forms of electricity generation, except where there is direct access to low- cost fossil fuels.
• Direct cost saving.• Fossil fuel price capping.• Avoided net fuel imports.• Electricity price stability.• Direct effect on resources.• Changed economic efficiency.
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Benefits to the Society • Cheap Electricity.• Low cost and efficient.• Less harmful.• Global interest and jobs.• Improved terms of trade.• Enhanced productivity.
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Conclusion:-
• Overall , nuclear energy has proven to be most beneficial to our society.• No lack of CO2, greenhouse
gasses, and other gasses it emits into the atmosphere.• The draw backs are safety,
radioactive waste and promotion of nuclear weapons.
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SAURABH SUMAN(PERFUME OF FLOWER)
5TH SEMESTERMECHANICAL ENGINEERING , student.
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Thank you.