Friday, April 4, 2014

The Future of Nuclear Energy

Nuclear engineering is the branch of the engineering which concerned with the practical applications of nuclear energy. 
Nuclear energy is the energy that produces in and releases from the atomic nucleus.
 
The first major effort to use nuclear energy was begun in
 World War II and culminated in the development of the bombs exploded over Hiroshima andNagasaki. 
There are many ways in which nuclear explosives may be used for peaceful purposes such as that new harbor, canals and mountain passes.
There are many useful uses from nuclear energy which produced in a nuclear reactor such as the generation of electricity and radioactive isotopes which produced in large quantities in a nuclear reactor.
There are many applications of radioactive isotopes such as, tracing, food preservation and chemical processing.
The
 environmental impact of nuclear power plants is also Smaller than that of conventional power plants; For example, atypical 1000- megawatt coal-burning plant may emit in one year as much as 100000 tons of sulfur dioxide, 75000 tons of nitrogen oxides and 5000 tons of fly ash.

Nuclear power plants produce none of these air pollutants and emit only trace amounts of radioactive gases. 
Nuclear power plant doesn’t need large amount of fuel to burn as the conventional power plants need but nuclear fuel need to enriched before used to producing nuclear energy.

In 2002, nuclear power supplied 20% of United States and 17% of world electricity consumption. Experts project worldwide electricity consumption will increase substantially in the coming decades, especially in the developing world, accompanying economic growth and social progress. However, official forecasts call for a mere 5% increase in nuclear electricity generating capacity worldwide by 2020 (and even this is questionable), while electricity use could grow by as much as 75%. These projections entail little new nuclear plant construction and reflect both economic considerations and growing anti-nuclear sentiment in key countries.


Nuclear energy development facing many challenges including high fuel costs, the radioactive nature of raw materials and wastes, health hazards due to harmful radiation emitted and handling of the waste. 
It is expected that further development in science and technology will help to overcome these challenges.
 
Correctly designed and operated, nuclear power plants are capable of running continuously for many decades without the need of costly upgrades, repairs and maintenance.

Finally: nuclear power is providing to be cheaper than conventional sources of power.

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