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Name one type of nuclear reactor?
CANDU, a reactor type designed in Canada which uses heavy water as the primary coolant.
How does a nuclear reactor power a ship?
A nuclear reactor has basically one useful product that we can apply, and that's heat. We generally pump the primary coolant, which is heated by nuclear fission, through a steam generator. There, the heat of the primary coolant is picked up by the secondary water, and that water is turned into steam. The steam is then used to drive conventional steam turbines.
Does the water used to cool a nuclear reactor get contaminated?
In a properly operating nuclear reactor, water used to cool the reactor is not contaminated. This water, called primary coolant, is quite pure. And after shutdown and cooldown, the water has little radiation in it. But if the reactor has some malfunction that overheats the fuel, fuel elements can rupture or melt (a meltdown) and fission products, which are hightly radioactive, can be released into the coolant (the water). The water is then contaminated.
What is a Nuclear reactor moisture separator?
This is used in the nuclear reactor that is known as Boiling Water Reactor (BWR) in which heat produced by the nuclear fission in the nuclear fuel allows the light water reactor coolant to boil. Then, the nuclear reactor moisture separator is used to increase the dryness of the produced steam before it goes to the reactor steam turbines.
What are the necessary components for a nuclear reactor?
for pressurized light water reactor type, as an example, the nuclear reactor components are * Reactor vessel (that contains the nuclear fuel and surrounded with water and contains control rod for power control and for safety) * reactor coolant pump * steam generator * reactor pressurizer * piping out of the vessel to the pressurizer, from pressurizer to steam generator, from steam generator to reactor coolant pump, and from pump back to the reactor vessel.
How is nuclear energy separated?
In a nuclear reactor the nuclear energy released by fission appears as heat in the fuel rods, which is then transferred to the reactor coolant (ie water in PWR and BWR)
What is the most common coolant used in nuclear reactors?
The most common coolant used in nuclear reactors is water. There are light water reactors (using "regular" water), and the heavy water kind of reactor.
What is the difference between a pressurized water reactor and a boiling water reactor?
The primary difference between a pressurized water reactor (PWR) and a boiling water reactor (BWR) is that in the BWR, water is actually boiled, and the steam is used to drive a steam turbine, while in the PWR, the primary coolant is not allowed to boil, but is circulated in a closed loop to boil water in a steam generator. The BWR circulates primary coolant through the steam turbine in a closed loop. The PWR contains the primary coolant in a loop that includes the steam generator, and not the steam turbine.
Why do nuclear reactors have to be located near water?
Water is used as coolant in most reactor plants to keep the reactor cool and prevent over heating. They do not necessarily need to be near a source of water; water just has to be available. However, a lot of nuclear reactors are build by a natural source of water so that the water can be used as an emergency source of coolant to keep the reactor covered with water in case of a rupture.
How do coolant systems work in nuclear reactors?
Coolant Systems on a Nuclear Reactor works by pumping large amounts of Sea Water into the reactors to cool it down and produce steam.
Why is only heavy water used as coolant for nuclear energy and can you use any other coolant used replacing D2O?
Many pressurized water reactors use "regular" water (light water) as a primay coolant. That means that "only heavy water" is not a rule as regards reactor design. Reactor design specifies the coolant to be used.
What is the function of light water in nuclear reactor?
Light water is used:as nuclear fuel reactor coolantto produce steam that turns the turbines and hence turning the electric generation systemas a neutron moderatoras coolant in safety systems
