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NUCLEAR POWER
PREPARED BY,
PRADEEPA. R
NUCLEAR POWER
OVERVIEW: Definition
Types of nuclear reactions
First commercial application
Mechanism & Brief History
Advantages and Disadvantages
Facts of Nuclear energy
NUCLEAR POWER
Nuclear energy is made in power plants by splitting of nuclei of heavy atoms, such as Uranium.
This splitting of nuclei release a very large amount of energy.
DEFINITION:
NUCLEAR POWER
Fission of the nuclei of some heavy elementso Power stationo Marine propulsion
Fussion of the nuclei of certain light elementso Uncontrolled release of power (Hydrogen bomb)
TYPES OF NUCLEAR REACTION:
NUCLEAR POWER
UK CALDER POWER STATION (1956)o Gas cooled reactor in UK
PRESSURISED WATER REACTOR IN USA
FIRST COMMERCIAL APPLICATION:
NUCLEAR POWER
oNuclear energy created by mechanism called reactor.oThe power source is heat produced by nuclear fission
chain reaction which involves an element, struck by neutron and splitting.
oThis results to smaller atoms, radiations and more neutrons. Again it strikes other atoms, creating chain reaction
oReactions is controlled by neutron moderators, which depending on design of reactor
MECHANISM:
v
U 235
U 236
Ba 141
Kr 95
Lighter Nuclei
CHAIN REACTION
NUCLEAR POWER
Nuclear power is both simple and complex.
oFission neutrons produce great heat.oHeat placed in water makes steam.oSteams accelerates a turbines which turn powers
a generator to make ELECTRICITY.
BRIEF HISTORY:
NUCLEAR POWER
According to International Atomic energy Agency, there were 437 nuclear power plants.
The five countries most reliant on nuclear energy are France, Lithuania, Belgium, Slovakia and Ukarine.
India is in the 15th place of producing electricity (4,780 MW) – World production as 374, 411 MW.
COUNTRIES INVOLVES IN NUCLEAR PLANTS:
NUCLEAR POWER
Nuclear plants bring jobs and prosperity to a countryIts good for the economy.Lots of energy is produced from small amount of
UraniumDoes not emit carbon dioxide (Green house effect)Little pollution.Provides world with most of its electricityCanada has easy access to Uranium
ADVANTAGES:
NUCLEAR POWER
Disposing of nuclear waste is very difficult.Radioactive wastes takes years to be no longer
hazardousWaste to be stored very carefully for long time.Storage is a huge problem, since it’s a radioactive.Very expensive.Uranium is not renewable leads to environmental
problems.
DISADVANTAGES:
NUCLEAR POWER
Energy supply security. Enhances technology exports. Electricity price stability. Intellectual capital gains. Improved competitively and productivity. Direct effects on resources. Currency appreciation and enhanced economic growth.
FACTS OF NUCLEAR ENERGY:
THANK YOU