Nuclear energy power is generated using Uranium, which is a metal found is various parts of the world. Nuclear power produces around 10 to 11 percent of the world's energy needs and produces large amounts of energy from small amount of fuel without the pollution.
Nuclear energy power stations work same way as fossil fuel based thermal power stations, except that a "chain reaction" inside a nuclear reactor produces the heat instead of burning coal or fossil fuels to produce heat.Natural uranium is only 0.7% of uranium 235 which undergoes fission in reactor. The fuel is delivered in an encased metal tubes, which are lowered into the reactor while it's running, using a special equipments sealed onto the top of the reactor.
uraniumWorkingThe Uranium rods as fuel in the reactor and the heat is generated by nuclear fission. The neutrons are made to smash into the nucleus of the uranium atoms, which split roughly in half and release energy in the form of heat. Once the uranium nucleus splits, it releases multiple neutrons, which are used to split other uranium nucleus. This chain reaction in the reactor is controlled by using “control rods", made of boron, which absorb neutrons.
When the control rods are inserted into the reactor, fission process slows down due to absorption of excess neutrons. The rods are raised, so neutrons can crash into uranium nucleus and more power can be generated. The heat released is transferred to water which gets converted in to steam and turns the turbine which generates the electricity. If the chain reaction is not controlled then it leads to explosion
Advantages of nuclear energy power:The cost of nuclear power costs is same as coal, so it's not expensive to make.A nuclear power station does not emit smoke or carbon dioxide, so it does not contribute to the greenhouse effect.Large amounts of energy can be produced from very small amounts of fuel. One ton of uranium is equal to thousands tones of coal.Waste produced is very lessNuclear power is reliable.
Disadvantages of nuclear energy power:Nuclear explosions produce radiation. The nuclear radiation damages the cells of the body or even kills them. People can fall sick, years after their exposure to nuclear radiationIn case of reactor disaster known as meltdown, can lead to a nuclear explosion and the emission of great amounts of radiation.Nuclear reactors have waste disposal problems. They cannot be thrown away like ordinary garbage because nuclear waste products emit dangerous radiation which could kill organisms which comes in contact.