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Nuclear power!

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Nuclear power!

  1. 1. Nuclear Power plant prepared by: R.V.Varmora
  2. 2. Project work prepared by: R.V.Varmora
  3. 3. Spinning turbine blades and generator Boiling water Steam What Is Nuclear Energy? • Power plants use heat to produce electricity. Nuclear energy produces electricity from heat through a process called fission. Nuclear power plants use the heat produced by fission of certain atoms. prepared by: R.V.Varmora
  4. 4. Uranium atom Neutrons Spit atoms Nuclear Energy Comes From Fission prepared by: R.V.Varmora
  5. 5. Heat Neutrons Splitting Atoms Releases Neutrons, Making Heat prepared by: R.V.Varmora
  6. 6. Heat Steam produced Steam Turbine Generator Heat Produces Steam, Generating Electricity prepared by: R.V.Varmora
  7. 7. Fission occurs in the reactor vessel. Heat is produced. The heat is used to heat water to create steam The steam is used to turn the turbine in the generator to produce electricity The steam is cooled in the condenser to return to the liquid phase. How a Nuclear Reactor works? prepared by: R.V.Varmora
  8. 8. • Pressurized Water Reactor keeps water under pressure so that it heats up but doesn’t boil. Water from the reactor and water that is turned into steam are in separate pipes. prepared by: R.V.Varmora Nuclear Reactors
  9. 9. • Boiling Water Reactor uses the heat from fission to heat water until it boils. The water from the reactor and that water that is turned into steam are the same. prepared by: R.V.Varmora
  10. 10. ContainmentVessel 1.5-inch thick steel Shield BuildingWall 3 foot thick reinforced concrete DryWellWall 5 foot thick reinforced concrete Bio Shield 4 foot thick leaded concrete with 1.5-inch thick steel lining inside and out ReactorVessel 4 to 8 inches thick steel Reactor Fuel WeirWall 1.5 foot thick concrete Safety is Engineered into Reactor Designs prepared by: R.V.Varmora
  11. 11. prepared by: R.V.Varmora World Nuclear Power Plants
  12. 12. Installed Nuclear Power Plant prepared by: R.V.Varmora
  13. 13. Proposed Nuclear Power Plant prepared by: R.V.Varmora
  14. 14. Advantages Nuclear power generation does emit relatively low amounts of carbon dioxide (CO2). The emissions of green house gases and therefore the contribution of nuclear power plants to global warming is therefore relatively little. This technology is readily available, it does not have to be developed first. It is possible to generate a high amount of electrical energy in one single plant. prepared by: R.V.Varmora
  15. 15. Disadvantages The problem of radioactive waste is still an unsolved one. High risks: It is technically impossible to build a plant with 100%security. The energy source for nuclear energy is Uranium. Uranium is a scarce resource, its supply is estimated to last only for the next 30 to 60 years depending on the actual demand. Nuclear power plants as well as nuclear waste could be preferred targets for terrorist attacks. During the operation of nuclear power plants, radioactive waste is produced, which in turn can be used for the production of nuclear weapons. prepared by: R.V.Varmora
  16. 16. Nuclear Plant Future The countries of the world are each planning their own. Course of nuclear plant development or decline. Nuclear power is competitive with natural gas. It is non - polluting. It does not contribute to global warming. Obtaining the fuel only takes 5% of the energy output Plant licenses have been extended from 20 years to an additional 20 years. Disposal of high level radioactive waste still being studied, but scientists believe deep burial would work.Because they are have large electrical output, their cost at $2 billion is hard to obtain and guarantee with banks. prepared by: R.V.Varmora
  17. 17. prepared by: R.V.Varmora
  18. 18. prepared by: R.V.Varmora

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