As a matter of fact, nuclear reactors were the first and largest source of electricity. Indeed, in the 1950s, almost all nuclear power plants were powered by nuclear fuel rods.
How the Nuclear Power Plants and Radioactive Material in a Nuclear Reactor Work?
Radioactivity, as everyone is aware of, means that radioactive elements decay into another element. In atomic reactors, the fission of uranium atoms produces lots of heat that creates heat to steam. This steam is used to boil water, which turns into steam to turn a turbine that spins a generator.
The Chernobyl Disaster: Nuclear Accident on Saturday 26 April 1986 in Pripyat, Ukraine
In the process of this heat is the only energy to be harnessed. In the event that the steam cools, it evaporates into space and the only source of heat is the sun.
Since these nuclear reactors have no windows, since a lot of radiation gets inside, there are very few openings on the walls and ceiling of the reactor itself. This makes the maintenance of the reactor very difficult since it's difficult to see when there is anything amiss with the outer surface of the reactor.
Of course, the outer wall of the entire containment building is not to be seen because of its thickness. In this case, some of the employees who handle the reactor and its material aren't able to see the thick outer wall of the entire reactor and therefore fail to notice that something is wrong.
However, once something is amiss inside the nuclear reactor, a reaction occurs in the reactor. Once it has been reeled in, there is a little heat in the inner reactor core that is removed using various cooling systems. These cooling systems, also known as heat exchangers, transport the hot fission product out of the reactor in the form of steam.
The biggest problem is that the hot water starts to ionize, thus causing the metal to rust and reacts with water molecules, eventually corroding the metal in the reactor core. Eventually, the entire reactor will be rendered inoperable.
Reactors are very complicated and cannot be viewed without special equipment. There is no way to judge the situation of any such reactor unless one is involved in the nuclear industry or an expert in such an industry.