Nuclear Energy

Topics: Nuclear fission, Nuclear power, Nuclear fusion Pages: 3 (957 words) Published: December 31, 2012
Nuclear Energy
1. What is nuclear energy?
Text Book Pg 80

2. Nuclear Fission :- In nuclear physics and nuclear chemistry, nuclear fission is a nuclear reaction in which the nucleus of an atom splits into smaller parts (lighter nuclei), often producing free neutrons and photons (in the form of gamma rays), and releasing a tremendous amount of energy. The two nuclei produced are most often of comparable size, typically with a mass ratio around 3:2 for common fissile isotopes.[1][2].The smallest of these ranges in size from a proton to an argon nucleus. Fission of heavy elements is an exothermic reaction which can release large amounts. Fission is a form of nuclear transmutation because the resulting fragments are not the same element as the original atom. Nuclear fission produces energy for nuclear power and to drive the explosion of nuclear weapons.

3. Nuclear Fusion:- Nuclear fusion is the process by which two or more atomic nuclei join together, or "fuse", to form a single heavier nucleus. This is usually accompanied by the release or absorption of large quantities of energy. Fusion is the process that powers active stars, the hydrogen bomb and experimental devices examining fusion power for electrical generation. Fusion generally occurs for lighter elements only, and likewise, that fission normally occurs only for heavier elements. There are extreme astrophysical events that can lead to short periods of fusion with heavier nuclei. This is the process that gives rise to nucleosynthesis, the creation of the heavy elements during events like supernovas.

4. Nuclear power plant
A) Working :- Nuclear power plants are powered by Uranium. In a process known as nuclear fission, uranium atoms are split to produce large amount of energy which is eventually converted to heat. The enormous amount of heat created, boils the water to produce steam, which is used to rotate turbines. These turbines in-turn spin the shaft of the generator. As the generator gets...
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