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Nuclear energy

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it's a very small but good presentation which describes the nuclear fission and fusion.

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Nuclear energy

  1. 1. PLEASE ENJOYTHIS PRESENTATION INCLUDES – GOOD AFTERNOONTHENUCLEAR ENERGY FRIENDSPRESENTATION
  2. 2. Nuclear energy - Two ways of production - Nuclear fission -Low energy neutrons are bombarded on the nucleusof a heavy atom to get split into lighter nuclei with a tremendous release of energy.
  3. 3. Heavy atomsURANIUM THORIUM PLUTONUM
  4. 4. STEAM HEAT waterThe energy thus produced is used in a nuclear reactor toproduce electricity
  5. 5. The energy produced is also used for the purpose of destruction in an ATOM BOMB
  6. 6. ALBERT EINSTEIN and the ATOMIC BOMB The physicist Albert Einstein did not directly participate in the invention of the atomic bomb. But as we shall see, he was instrumental in facilitating its development THROUGH
  7. 7. In 1905, as part of his Special Theory of Relativity, he made the intriguing point that a large amount of energy could be released from a small amount of matter. This was expressed by the equation E=mc2(energy = mass times the speed of light squared). The atomic bomb would clearly illustrate this principle. Fatman
  8. 8. vBut bombs were not whatEinstein had in mindwhen he published thisequation.
  9. 9. The theory of relativity is what used innuclear reactors to produce electricity Here heat energy is produced based on the equation
  10. 10. IN NUCLEAR FISSION +SO THE LOST MASS IS CONVERTED INTO ENERGY MASS > MASSAT A RATE GOVERNED BY THE FORMULA E=MC2
  11. 11. NUCLEAR FUSION FUSION MEANS JOINING LIGHTERNUCLEI TO MAKE A HEAVIER NUCLEUS
  12. 12. HERE HYDROGEN ISOTOPES ARE FUSED TO CREATE HELIUM
  13. 13. SO IN NUCLEAR FUSION TOO MASS IS CONVERTED TO ENERGY AS THE SUM OF THE MASSES OF THE ORIGINALINDIVIDUAL NUCLEI IS GREATER THAN THE NUCLEUS THEN OBTAINED
  14. 14. CONSIDERABLE ENERGY IS NEEDED TO FORCE THENUCLEI TO FUSE .AND THE CONDITIONS NEEDEDFOR THIS PROCESS ARE EXTREME –1.MILLIONS OF DEGREES OFTEMPERATURE.2.PASCALS OF PRESSURE This condition is satisfied in a star
  15. 15. So nuclear fusion reactionsare the source of energy in the sun and other stars
  16. 16. Hydrogen bomb works on this principleBut how hydrogen bomb satisfiesthe necessary conditions for fusionto happen?
  17. 17. WORKING OF A HYDROGEN BOMBA NUCLEAR BOMB BASED ON THEFISSION OF URANIUM OR PLUTONIUM ISPLACED AT THE CORE OF THE HYDROGENBOMB.THIS NUCLEAR BOMB IS EMBEDDED IN ASUBSTANCE WHICH CONTAINSDEUTERIUM AND LITHIUM
  18. 18. WHEN THE NUCLEAR BOMB IS DETONATED THE TEMPERATURE OF THIS SUBSTANCE IS RAISED TO10000000K IN A FEW MICROSECONDSTHE HIGH TEMPERATURE GENERATESSUFFICIENT ENERGY FOR THE LIGHTNUCLEI TO FUSE AND A DEVASTATINGAMOUNT OF ENERGY IS RELEASED
  19. 19. IN SHORT THE FUSION INHYDROGEN BOMB IS FUELED BY THE FISSION.
  20. 20. Nuclear energy has long posed a dilemma for environmentalists. As a cheap, clean source of power that does not use fossil fuels or add greenhouse gases to the atmosphere, it offers an appealingalternative to power from traditional coal- fired plants. Yet nuclear energy is associated with troubling environmentalissues, including the problem of radioactive waste disposal.
  21. 21. The byproduct generated from the fission of nuclear fuel in the form of uranium or plutonium creates what is called nuclear waste. This waste comes in huge variety of extremely radioactive material with half-lives ranging from 8 days to hundreds of thousands of years. In other words their radioactivity takes a really, really long time to decay, thousands of times our human life-times. These fission products if released to the environment will last a long time, and the worst part is that it is almost impossible to decontaminate them.
  22. 22. A GOOD SOURCE OF ENERGY IS THE ONESO THROUGH THE CLASSES PRESENTEDSO AS FUTURE GENERATION LET WHICH APART FROM THE DIFFERENT BY OTHER GROUPS WE UNDERSTOODUS WORK ACCESSIBLE TRANSPORT - IS EASILY SOURCES STORE AND TO ALSO TOGETHER DIFFERENT - IS EASY TO OF ABOUT SOMETHINGENERGY WEELIMINATETHATENERGY CRISIS STUDIED THE -ENERGY. THEIR -USESOURCES OF IS ECONOMICAL AND EXTRACTIONTHROUGH CAUSE ENVIRONMENTAL - DOES NOT NEW AS WELL AS THEIR ADVANTAGES IDEAS. DAMAGE DISADVANTAGES. - PROVIDE A LOT OF ENERGY etc

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