![]() ![]() However, in these reactors, highly radioactive elements are produced continually. Since the energy released in nuclear reactors is very high, they need very less fuel. ![]() The low-pressure steam from the turbine is cooled and condensed to water and forced back into the steam generator. In the steam generator, evaporation provides high-pressure steam to operate the turbine that drives the electric generator. In the primary-loop, water is circulated through the reactor vessel and transfers energy at high temperature and pressure (at about 600 K and 150 atm) to the steam generator, which is part of the secondary loop. In such reactors, water is used as a moderator and heat transfer medium. The image above outlines a typical nuclear power plant based on a pressurized water reactor. Plutonium is highly radioactive and can also undergo nuclear fission under bombardment by slow neutrons. Also, it forms plutonium by capturing neutrons. This isotope is available in abundance and does not fission.
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