Nuclear Power Generator


Just   as many   thermal Power   Stations   generate   elecetricity   by harnessing the thermal energy eleased from burning fossil   fuel.   Nuclear Power Plants   convert the   energy from the nucleus of an   atom. Typically via   nuclear   fission.

A   typical   nuclear   reactor has a few   main parts. Inside   the core where the nuclear reaction takes place are the fuel rods and   assemblies, the control rods   the moderator and the coolant. Outside the core are the steam generator, turbines & parts of the cooling system.

The   job of the coolant is to absorb the heat from the reaction. The most common   coolant used in   nuclear power plant today is Water. The coolant water is heated by the nuclear reactions going on inside the core. However this heated water does not   boil   because   it is kept at an extremely intense   pressure, thus   raising its boiling point   above the normal   100   celcius.

The heated water rises up and passes through another part of the reactor, the heat exchanger. The moderator/coolant water is radioactive, so it can not leave the inner reactor containment. Its heat must be transferred to non-radioactive water, which can then be sent out of the reactor shielding. This is done through the heat exchanger, which works by moving the radioactive water through a series of pipes that are wrapped around other pipes. The metallic pipes conduct the heat from the moderator to the normal water. Then, the normal water (now in steam form and intensely hot) moves to the turbine, where electricity is produced.

After the hot water has passed through the turbine, some of its energy is changed into electricity. However, the water is still very hot. It must be cooled somehow. Many nuclear power plants used steam towers to cool this water with air. These are generally the buildings that people associate with nuclear power plants. At reactors that do not have towers, the clean water is purified and dumped into the nearest body of water, and cool...