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15.05.2009
Nuclear PowerRomeo Shuka
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History
The Reactor
Nuclear Stations
Benefits & Disadvantage
The discovery of nuclear reactions need not bring about the destruction of mankind any more than the discovery of matches
What is Nuclear Power?
Content
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What is nuclear power?
Nuclear power is any nuclear technology designed to extract usable energy from atomic nuclei via controlled nuclear
The process of generation nuclear power starts with the mining and processing of uranium and other radioactive elements. These elements are used to feed the reactor of a nuclear power plant, generating a reaction known as fission which creates intense heat, turning water in the plant into steam. The steam powers steam turbines, which generate electricity and feed the electricity into the electrical grid.
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Basic fossil fuels
Uranium235
Plutonium239
Fossil fuels
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Uranium
Name, symbol, number Uranium, U, 92
Element category actinide
Phase solid
Density 19.1 g / cm 3
Melting point 1132,3 oC
Boiling point 4131 oC
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Plutonium
Name, symbol, number Plutonium, Pu, 94
Element category actinide
Phase solid
Density 19.816 g / cm 3
Melting point 639,4 oC
Boiling point 3228 oC
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Origins
Early years
Developement
Nuclear fission was first experimentally achieved by Enrico Fermi in 1934 when his team bombarded uranium with neutrons.
Installed nuclear capacity initially rose relatively quickly, rising from less than 1 gigawatt (GW) in 1960 to 100 GW in the late 1970s, and 300 GW in the late 1980s.
On June 27, 1954, the USSR's Obninsk Nuclear Power Plant became the world's first nuclear power plant to generate electricity for a power grid.
History
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Year 1980
Year 1990
Years 2000
Year 2010
130
310
350
380
Nuclear power capacity
Capacity in GW
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1. Pressurized Water Reactor - 265 US, France, Japan, Russia, China
2. Boiling Water Reactor - 94 Us, Japan, Sweden1960
1980
1995
2005
Power reactors
20
250
410
420
Number of power reactors
Reactor Types
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Pressurized Water Reactor
PWRs keep water under pressure so that it
heats, but does not boil. Water from the reactor
and the water in the steam generator that is turned into steam never mix. In this way, most of the radioactivity stays in
the reactor area.
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Pressurized Water Reactor
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Boiling Water Reactor
BWRs actually boil the water. In both types, water is converted to
steam, and then recycled back into water
by a part called the condenser, to be used
again in the heat process..
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Boiling Water Reactor
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There are 17 Nuclear Power Stations in GermanyCompanys: E-On , RWE, EnBW
A B C D
1475 1480
840
806
A. Isar 2 1986 - 2021
B. Brokdorf 1988 - 2020
C. Neckarwestheim 1976 - 2010
D. Brunsbüttel 1977 - 2011
Nuclear Power Stations
in MW
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Nuclear Stations Worldwide
Op.104off 29
Op. 59off 11
Op. 55off 3
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Nuclear Station Unteweser
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Country: Germany Operator: E.ON Build: July 1, 1972 Commercial operation: Sep. 29,
1978
Data Reactor Power People
100 security
guards 270 employers
1 reactor (1410
MW)
2008 – 9.786 GW h Net generation: 284.290 GW
h
Nuclear Station Unteweser
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The reactor
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The turbine
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Benefits & Disadvantage
1.• Greenhouse Emissions• don’t release CO2
2.• Price• cheap to produce• prices are stable
3.• Uranium is plentiful• U-235• U-238
4.• Nuclear energy is safe• 1 or 2 death per year
5.• Efficacy 99%• alternative 10-20%
6.• The future• new technology, safer and cheaper
1.• Radiation• human health
2.• Reactor accidents
3.• Radioactive waste• isolation
Plus Minus
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THE END
Be clever with Nuclear Energy
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