Nuclear fission of uranium 235 or U235) has different energy and their average energy is Mev 2 (2 mega electron volts [each electron volt is equivalent to 10-19 x 1.6 joules of energy])

(nuclear power)

(Nuclear fission of uranium 235 or U235) has different energy and their average energy is Mev 2 (2 mega electron volts [each electron volt is equivalent to 10-19 x 1.6 joules of energy])

Researcher  and author: Dr.   (   Afshin Rashid)

Important point: An important point is that the neutrons produced as a result of nuclear fission have different energies and their average energy is Mev 2 (2 mega electron volts [each electron volt is equivalent to 1.6 x 10-19 joule of energy]) is that uranium 235 reacts with neutrons whose energy is much lower than this value, i.e. about 25,000 electron volts and their speed is 2,200 meters per second, and since the main fuel of nuclear reactors It is a type of uranium.

Therefore, the energy of neutrons should decrease. Yellow cake is generally used to prepare nuclear reactor fuel, in fact, it is this material that is converted into UO2 after some processes and used in fuel rods. This material can also be used for enrichment to Uranium hexafluoride or UF6 gas is converted, because in this case, the density of uranium 235 isotopes can be increased in it.

Production of electricity from  stable and compressed uranium like yellow cake

To produce electricity, nuclear fission in a reactor is only part of a nuclear cycle. This cycle starts from mines. Uranium extracted from the mine usually has a stable and compact form like yellow cake. This mineral uranium is sent to processing facilities, where the yellow cake is converted into uranium hexafluoride (which is used as reactor fuel after enrichment). At this stage, the degree of uranium enrichment, i.e., the percentage of uranium-235, is around 0.7%. 

If needed, depending on the type of power plant fuel (percentage of enrichment required for power plant fuel), uranium is enriched and then used to produce fuel rods used in the power plant (the shape of the rods is different in different power plants). The life of each mill is approximately three years, so that about 3% of the uranium in it is consumed. After the lifetime of uranium, it is taken to the spent fuel pool. Uranium must remain in these ponds for at least 5 years so that the isotopes produced by nuclear fission are separated from it. After this time, the uranium is stored in dry barrels or returned to the fuel cycle.

Conclusion : 

An important point is that the neutrons produced as a result of nuclear fission have different energies and their average energy is Mev 2 (2 mega electron volts [each electron volt is equivalent to 10-19 x 1.6 joules of energy] ) the situation is that uranium 235 reacts with neutrons whose energy is much lower than this value, i.e. about 25,000 electron volts and their speed is 2,200 meters per second, and since the main fuel of nuclear reactors is It is uranium.

Researcher  and author: Dr.   (   Afshin Rashid)

Specialized doctorate in nano-microelectronics