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Nuclear Power


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A look into the history of Nuclear energy and how it works.

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Nuclear Power

  1. 1. Nuclear Power vs. Other Alternative Energy Sources
  2. 2. The Big Question <ul><li>What impact has nuclear power made on America, and how can it aid in our search for dependable energy? </li></ul>
  3. 3. The Nuclear Expansion <ul><li>1934 - Enrico Fermi (U.S. immigrant from Italy) irradiated uranium with neutrons. He believed he had produced elements beyond uranium, not realizing that he had split the atom, thus achieving the world's first nuclear fission. </li></ul><ul><li>1939 - President Roosevelt received a letter from Albert Einstein on the possibility of a uranium weapon. </li></ul><ul><li>1942 – The Manhattan Project was formed in the United States to secretly build the atomic bomb for use in WWII </li></ul><ul><li>1945 - First test of a nuclear weapon, code-named “Trinity”, occurred at Alamogordo, New Mexico. </li></ul><ul><li>1945 - U.S. dropped an atomic bomb on Hiroshima, Japan, and three days later dropped another one on Nagasaki, Japan. Japan surrendered less than two weeks later on August 14, ending World War II. </li></ul><ul><li>1959 - The first nuclear power plant in the U.S. to be built, the Dresden 1 Nuclear Power Station in Illinois. It achieves a self-sustaining nuclear reaction. </li></ul>
  4. 4. Nuclear Power <ul><ul><li>An atom of Uranium 235 , when left by itself will throw out a piece of itself due to its unstable nature. This is called radioactivity . </li></ul></ul><ul><ul><li>One small piece of the decaying U235 is a neutron. </li></ul></ul><ul><ul><li>When a fissile U235 captures a neutron it fissions into two other atoms and gives off energy. </li></ul></ul><ul><ul><li>When U235 is left alone this stray neutron is impotent. </li></ul></ul><ul><ul><li>But if many U235 atoms are organized into what is known as critical mass the stray neutrons will hit other U235 atoms, splitting them, and creating what is called a self sustaining nuclear reaction . </li></ul></ul>
  5. 5. How It Works <ul><ul><li>Uranium ore is mined from the earth. </li></ul></ul><ul><ul><li>Fissile uranium is processed into fuel rods which are bundled into fuel assemblies. </li></ul></ul><ul><ul><li>Fuel assemblies are assembled into a nuclear core. </li></ul></ul><ul><ul><li>A self sustaining nuclear chain reaction within the core causes frictional heat between the atoms of fuel which generates a tremendous amount of heat. </li></ul></ul><ul><ul><li>The nuclear core is cooled by water in a primary system. </li></ul></ul><ul><ul><li>A steam generator transfers heat from the primary system to a secondary water system, which generates steam. </li></ul></ul>
  6. 6. How It Works (cont.) <ul><ul><li>The steam is expanded through a turbine which turns the turbine at a high rate of speed. </li></ul></ul><ul><ul><li>A large magnet is coupled to the turbine and spins within an electric generator. </li></ul></ul><ul><ul><li>The spinning magnet creates an electrical current in wires that surround the magnet. </li></ul></ul><ul><ul><li>The electrical current is delivered to the customers of the electric utility. </li></ul></ul><ul><ul><li>Other systems at the plant perform important functions such as shutting down the plant and keeping it safely shut down when maintenance is required. </li></ul></ul>
  7. 7. Solar Vs. Nuclear
  8. 8. Wind vs. Nuclear
  9. 9. The Big Answer <ul><li>By utilizing our country’s nuclear resources America can harness its necessary energy safely, efficiently, and provide sufficient energy for our American lifestyles. </li></ul>