Pros/Cons, advantages/disadvantages of nuclear energy/fossil fuels.

Essay by icybreathboyHigh School, 11th gradeA, February 2005

download word file, 4 pages 5.0

Downloaded 103 times

Much of the worlds energy is produced from Uranium. This energy is commonly referred to as "nuclear energy" because uranium reacts in nuclear reactors to form heat. When fossil fuels are used for heat, they are just simply burned instead of reacted, so they create only mediocre amounts of heat for the plant. Nuclear power is responsible fore over 11% of the worlds energy, without the enormous amounts of coal or the pollution that fossil fuels cause. Natural uranium is only 0.7%"uranium-235, which the uranium that undergoes fission in this type of reactor. The rest of the uranium is uranium-238, which does not react almost at all, and is only mixed in with the uranium-235, because it is too expensive and a waste of time to separate from it. Although that was the kind of Uranium that was used in plants in the past, most plants currently use enriched uranium, which has a much higher composition of the isotope uranium-235, making the plant much more efficient.

Nuclear energy has proved to be both reliable and safe to use, not to mention very efficient, especially as a power source. An important reason as to why we often use this nuclear energy is because of all of its advantages over conventional energy sources. Nuclear power plants only need to be refueled once a year, an obvious advantage over coal using plants. Coal plants have to use a whole lot of coal every day to operate, almost a trainload a day. The energy that can be obtained from only one pound of coal is the same amount that is obtained from a million pounds of coal.

        That isn't the only advantage of nuclear plants over coal ones. The coal that is brought to the coal plants in the east often has to be...