nuclear energy
When dealing with the world's present sources of energy, the two most popular forms are nuclear and energy by fossil fuels. How long will these supplies last? Are they the most effective? Is it harmful to the environment? All of these questions must be addressed. Below is a description of how these sources produce energy.What exactly is nuclear energy? We talk about it all the time, but what is it? Nuclear energy is energy that is obtained by splitting the nuclei of atoms. The atoms of most elements are stable; they never change. Some elements, however, have nuclei that under certain conditions can be split up. This process is known as nuclear fission. When fission takes place, very large amounts of energy are released. Nuclear fission can only take place in nuclear power plants. These plants are highly expensive. The fission process takes time, and must be carefully controlled. If t
In order to turn coal into a high-energy fuel; the hydrogen content of the coal must be increased. Sulfur dioxide is a main ingredient in this smoke. The process all begins in a reactor. ) The Energy Question: Thinking about Tomorrow; Gutnik, Martin J. Researchers are working to develop new, improved ways of producing energy by burning coal. The water is pumped through the uranium core, where it absorbs the heat that is produced by fission. ) The World Book Encyclopedia: Field Enterprises, 1964. Learner Publications Company, Minneapolis: 1997. Another main source of energy today is coal. It is also a fairly soft substance with a brownish color. Lignite coal, or coal that has not been exposed to much heat or pressure contains a lot of moisture and is about 50 percent carbon. Bibliography Bibliography1. It then passes into a steam generator, where it heats the water into steam.
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