Radiation In Nuclear Power PlantsPresentation Transcript
Nuclear Power Plant
Nuclear Power Plants Introduction History Advantages How it Works Parts Disadvantages Effects
is a thermal power station in which the heat source is one or more nuclear reactors. Nuclear power plants are base load stations, which work best when the power output is constant (although boiling water reactors can come down to half power at night)
Nuclear Power Plant (NPP)
Introduction Our high dependence of fossil fuels for energy has brought about a rapid depletion of those energy sources which resulted in the steady increase in the prices of oil, coal and gas. Therefore, there is a dire need to find new sources of energy. There is, however, one major alternative energy source whose potential for generating electricity is vast but which entails many risks- nuclear energy.
A nuclear power plant has a place where the nuclear reaction happens called a reactor. The plant also has machines which remove heat from the reactor and make electricity. Electricity made by nuclear power plants is called nuclear power.
Nuclear power plants use uranium as fuel. When the reactor is on, uranium atoms inside the reactor split into two smaller atoms. When uranium atoms split, they give off a large amount of heat. This splitting of atoms is called fission.
1951 (Dec. 20) First electricity is generated from atomic power at EBR-1 Idaho National Engineering Lab, Idaho Falls. This is a government-funded demonstration project.
1954 (Sept.6) Ground broken for Shippingport Atomic Power Station.(Pennsylvania)
1955 (July) Arco, Idaho becomes the first U.S town to be powered by nuclear energy.
1956 Ground broken for GE-Vallecitos, a boiling water reactor, near Pleasanton, California. Issued Power Reactor License by #1 by the U.S Atomic Energy Commission.
1957 (July) The Sodium Reactor Experiment in Santa Susana, California, generates the first power from a civilian nuclear reactor.
1957 (Aug.3) Vallecitos goes critical.
1957 (Oct.19) Vallecitos connects to the electrical grid and becomes the first privately funded plant to supply power in megawatt amounts to the electric utility grid. It closed in 1963.
1957 (Dec.2) Shippingport, a pressurized water reactor/ light water breeder reactor, goes critical in Shippingport, Pennsylvania. It holds the honor as the first commercial nuclear power plant in the United States. It closed in Oct. 1982.