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Energy & Its Impact on Global Society

Energy & Its Impact on Global Society. Jerome K. Williams, Ph.D. Saint Leo University Dept. Mathematics & Sciences. Chapter 14: Nuclear Power: Fission. Nuclear Reactions: A Synopsis Atom Smashing: Nuclear Fission Nuclear Power Types of Reactors Nuclear Fuel Cycle Radioactive Waste

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Energy & Its Impact on Global Society

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  1. Energy & Its Impact on Global Society Jerome K. Williams, Ph.D. Saint Leo University Dept. Mathematics & Sciences

  2. Chapter 14: Nuclear Power: Fission • Nuclear Reactions: A Synopsis • Atom Smashing: Nuclear Fission • Nuclear Power • Types of Reactors • Nuclear Fuel Cycle • Radioactive Waste • Public Safety & Risk Assessment • Environmental & Economic Impact

  3. Nuclear Reactions: A Synopsis Alpha Decay Process Beta Decay Process

  4. Atom Smashing: Nuclear Fission

  5. Atom Smashing: Nuclear Fission

  6. Nuclear Power • Discovery & Use of Nuclear Power has led to the modern atomic era. • Nuclear Power is seen from two sides: one of best ways for generating electricity versus the means for humanity to destroy itself

  7. Nuclear Power • Why the dilemma? • Nuclear Power is self-sustaining requiring very low fuel quantities (once per year) versus coal (daily) • Safety Concerns about design & location of sites • Problem with Waste Disposal & Storage

  8. Nuclear Power • Nuclear Power results from a chain reaction between the nuclear fuel and a neutron. • One of products generated are more neutrons which can further react with the fuel.

  9. Nuclear Power • To sustain the reaction, the nuclear fuel must be “enriched” to between 3-4% Uranium-235 • Temperature inside nuclear reactor core must be regulated since a tremendous amount of heat is released. This is accomplished using water.

  10. Nuclear Power • Types of Light Water Reactors (LWR) • Boiling Water Reactors (BWR) • Pressurized Water Reactors (PWR)

  11. Nuclear Power Plant

  12. Nuclear Power • Nuclear Fuel Cycle • Mining of Uranium Containing Ores • Fuel Enrichment • Fuel Reprocessing & Storage

  13. Nuclear Power

  14. Nuclear Power • Radioactive Waste • High-Level vs. Low-Level Radioactive Waste • Site Selection for Waste Storage • Summary Waste Disposal Options • Decommissioning of Nuclear Power Plant

  15. Nuclear Power • Public Safety & Risk Assessment

  16. Environmental & Economic Impact • Nuclear Accidents • Reactor Failure • Loss of Reactor Coolant • Three Mile Island; Chernobyl; Fukushima

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