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:

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