ENPH 210 Spring 2004 Nuclear Energy |
RENEWABLE ENERGY SOURCES: AN OVERVIEWNUCLEAR ENERGY |
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http://www.nukeworker.com/pictures/index.php?cat=10 --Nuclear energy is the result of nuclear reactions.- There are two different ways in which energy is released from the nucleus of a radioactive material. One is fission, the other fusion. Fission is the splitting of the nuclei of the atom, whereas fusion is the combining of atoms for combustion, just like our sun. These reactions produce huge amounts of energy, and if it is contained properly it can be used effectively, such as nuclear power plants.--Nuclear power is usually the result of fission, responsible for the generation of 20% of America’s electricity. |
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FISSION |
FUSION |
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Positives of Nuclear Energy:-Could be the solution to the limited fossil fuel frenzy -Nuclear power plants are effecient and effective -They require significantly less fuel than fossil fuels -“One ton of uranium produces more energy than produced by several million tons of coal.” (Nuclear Energy, http://library.thinkquest.org/3471/nuclear_energy.html) -Along with fuel efficiency, nuclear electricity does not release any emissions into the environment, such as carbon dioxide. -The plants also create employment opportunities for the surrounding areas. |
Negatives of Nuclear Energy:-The world’s nuclear technology and power is continually growing... thus leading to...-“The two most powerful nations, United State and Russia, have about 50,000 nuclear weapons combined.” (Nuclear Energy, http://library.thinkquest.org/3471/nuclear_energy.html) -Radiation is energy in the form of waves, like UV rays from the sun. Radioactive materials release radiation as they deteriorate. Radiation is very dangerous to humans; even the smallest exposure causes cell damage, and cancers. -How do we dispose of nuclear wastes? |
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MAJOR ISSUES: RADIATION AND DISPOSALRADIATION --Let us not forget what happened in Hiroshima and Nagasaki, nuclear bombs detonated in Japan (by the U.S.) killing over 140,000 people and leaving millions left with chronic disorders. How about the Three Mile Island or Chernobyl incidents, when the surrounding families were forced to flee the areas, and at Chernobyl resulting in employee deaths in days, other developed cancers from exposure. We cannot be asked to forget about these horrible historical markers for the sake of energy. It is dangerous and risky, and everybody is well informed of this. DISPOSAL There is more to the story than just the plants itself. A huge issue today is the disposal of all this “nuclear waste”. Where can we put it so that is immobile, untouched, and stationary for thousands of years? To be honest, there are few answers to this question. Yucca Mountain, in Nevada, has been their first attempt at a solution, and even now they are worried about the activity of the tectonic plates below the surface. Another proposal exposed to the public recently is storing the waste right here in Wisconsin, within the depths of our granite beds below near the Wolf River. Despite much opposition to this proposal it is still in serious consideration. How does one feel about nuclear energy when it is put in their backyard? Is the energy source necessary when we have several other energy options with few minor disadvantages? Sources - Nuclear Energy, http://library.thinkquest.org/3471/nuclear_energy.html - http://europa.eu.int/comm/energy/nuclear/inex_en.html - http://tva.gov/power/nuclear.htm - http://www.eia.doe.gov/kids/non-renewable/nuclear.html |