Nuclear+Fusion

//

The most power-ful nuclear fission known to man is like the sun. " Fusion powers the sun and stars as hydrogen atoms fuses together to form helium, and matter is converted into energy." Hydrogen has to be heated to very high tempatures to go from hydrogen to plasma. The plasma's negatively charged electrons separate into atomic nuclei. The formula for this process is the following 4 ' h + 2e 4he + 2 nutrients + 6 photons. Fusion was used on earth to make nuclear bombs. But it has never yet been controlled so we can obtain useful energy. With current technolgy, nuclear reaction is readily feasible between the nuclei of two heavy forms (isotopes) of hydrogen - denterium (D) and tritium (T). Each D-T fusion event releases 17.6 Mev for a uranium - 235 (235 U) fission), Deuterium occurs naturlly in seawater (30 grams per cubic meter) , which makes it very abandant relative to other energy resources. Tritium does not occur naturally and is radioactive , with a half - life of around 12 years. There is a power that fuels the sun and other stars with nuclear fusion. In a hydrogen bomb. There are two istopes of hydrogen. It is deuterium and tritium are fused to form a nucleus of something of helium and a neutron. Nuclear energy can be released by fusion of something like a two light elements. Some of the elements are with low atomic numbers. In nuclear physics and nuclear chemistry, nuclear fusion is the process wihich like - charged atoms join together. After this process takes place the result is energy. Nuclear fusion process that gives off efficient and huge quahtiy of power. Which is alot cleaner and safer also. In this type of reaction can be compared to the sun itself. In the reaction it realeases a vast energy. In a fusion reactor Hydrogen atoms will come together to form some Helium atoms. And neutrons along with a huge amount of energy. Fusion has some extremely good features. The advantage of fusion compared with fossil-fuel-based on energy. For the same amount energy,fusion requires about six orders of magnitude. Consider this,one cup of water is equivalent to one full tank of gasoline for a car. So one heavy drop of water though fusion can give the same amount of energy of twenty tanks of gasoline. In a fusion reactor,neutrons will be absorbed ina blanket contianing lithium which surrounds the core. Lithium is transformed into tritium and helium. This blanket must be thick enough(about 1 meter)to slow down the neutrons. Fusion has some extemely good features. The advantage of fusion compared with fossil-fuel-based on energy. For the same amount energy, fusion requires about six orders of magnitude. Consider this one cup of hydrogen tap water is equivelant to a full tank tank of gasoline for cars. Only one drop of water through fusion can be equivelant to 20 gallons of gasoline. In a fusion reactor, neutrons will be absorbed in a blanket containing lithium which surrounds the core. Lithium is transformed into tritium and helium. This blanket must be thick enough (about 1 meter) to slow down the neutrons. To cause a nuclear reaction you need a source of energy to nuclei together (to collide them they usally repel each other). It is done by using a beaming accelerating the particles toward one another via magnets. Nuclear fusion is energy supplying a process which happens in the sun and in stars since billions of years. The fusion will process a place at extraordinary high temperatures at which the matter is in the fourth state.//

Created by - Brian Murphy,Kyle Bair,Cullen Fisher

[|www.simple.wikipedia.org]

[|www.fzk.de/fzk.com]