A nuclear reactor is composed of the following:
Most reactors are what are called thermal reactors, what this means is slow (aka thermal) neutrons are used in the chain reaction to cause fissions in the fuel. A moderator (e.g. water, graphite, heavy water) is required to slow the fast neutrons emitted by fissions to this slow speed before too many of them are captured by uranium-238, which removes them from the chain reaction.
Fast reactors do not need a moderator as they use highly enriched fuel with most of the uranium-238 removed.
The control rods can be inserted and removed as needed and are made of a material (e.g. cadmium) that easily captures neutrons, which removes them from the chain reaction.
The safety rods are only inserted in an emergency, in some reactor designs they cannot be removed once inserted. Like the control rods they are made of a material (e.g. boron, cadmium) that easily captures neutrons, which removes them from the chain reaction.
The cooling system removes heat from the reactor (and in power reactors carries it to the turbine room where it is used to generate electricity). Frequently there are redundant cooling systems, including an emergency one that floods the reactor core with water.
Starting a nuclear reactor is requires a special procedure to do it safely:
Neutron radiation turns fertile material into fissionable material. Often reactors are designed to be both fission reactors and breeder reactors at the same time, though this is not a true breeder reactor.
Uranium-235 sometimes spontaneously undergoes fission. It does this naturally, making two much lighter new atoms, and three neutrons. When one of these neutrons hits another atom of U-235, it causes that atom to undergo fission, releasing three more neutrons. If there are a lot of U-235 atoms around, this reaction can go faster and faster. If it does this, it is said to have critical mass.
If the reaction is allowed to continue in an uncontrolled manner, there is an explosion. But if it is controlled, it can be used in a reactor. The nuclear fission reaction gives off a lot of heat because some of the mass in the atom is converted into energy. This reaction is millions of times more powerful than the oxidation of carbon.
The reactor is used as a heat source. For example it might be used to boil water into steam. This is then used to drive a turbine, which turns a generator, producing electricity.
A nuclear reactor work because of the fuel rods where radioactive elements are stored such as uranium. the fuel rods are put in water where the atoms split causing heat it then turns the water into steam which turns turbines.
Please define meaning of SSP
No one work inside a nuclear reactor, it is operated from outside.
You can work out the gas flow from the gas circulator characteristics, and measure the reactor inlet and outlet temperatures, so you can work out the reactor thermal output. Then you can measure the thermal conditions in the steam circuit from feed flow and temperature and steam temperature and pressure, this will give the reactor thermal output together with the gas circulator heat input. From all this data work out the best estimate for the reactor output. The generator output is straightforward, then you have to subtract the power being used on the plant for driving the gas circulators and feed pumps etc, to get the net electrical output, then it is just the ratio of that to the reactor thermal output.
The first reactor in 1942 showed that it would work, and larger ones were built at Hanford Wa to produce plutonium for the A-bomb
A reactor vessel in a boiling water reactor is approximately 300 tons.
MAGIC!!!!!!!!!
Reactor is used for distilling water in thermal power plants.
Please define meaning of SSP
It lights up
No one work inside a nuclear reactor, it is operated from outside.
That refers to atomic nuclei being stable - not disintegrating, or at least not disintegrating very quickly.
You can work out the gas flow from the gas circulator characteristics, and measure the reactor inlet and outlet temperatures, so you can work out the reactor thermal output. Then you can measure the thermal conditions in the steam circuit from feed flow and temperature and steam temperature and pressure, this will give the reactor thermal output together with the gas circulator heat input. From all this data work out the best estimate for the reactor output. The generator output is straightforward, then you have to subtract the power being used on the plant for driving the gas circulators and feed pumps etc, to get the net electrical output, then it is just the ratio of that to the reactor thermal output.
The first reactor in 1942 showed that it would work, and larger ones were built at Hanford Wa to produce plutonium for the A-bomb
The range is within 10-15 Meter (diameter of medium sized nucleus)
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the boiling water reactor, pressurized water reactor, and the LMFB reactor
a completely mixed reactor. the concentration in the reactor is the same that flows our of the reactor