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4-19 - 1 What is nuclear energy Uranium Isotope different...

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1. What is nuclear energy? Uranium Isotope: different number of neutrons 2. What are the essential ingredients in nuclear power generation? U 235 (U 238 is most commonly found, @ 99.28%) (Canada, parts of Africa) Neutron Water Turbine Control rod – absorbs neutrons to slow down the chain rxn 3. How is nuclear energy produced through fission and fusion processes? Fusion uses Deuterium & Tritium Fission uses U 235 ; enrich Uranium to 3%; bombard with neutron; gives off heat; heats water; creates steam; goes through pipes; turns turbine creates electricity 4. What are the key differences between the boiling water reactors and pressurized water reactors? Which type is most frequently encountered design in the U.S.? 103 currently built, mostly built by 1973; life about 40 years; can get an extension; 20% of U.S. power comes from nuclear Boiling Water Reactors Water circulates in core & steam contains radiation More fuel efficient Pressurized Water Reactors ***
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