Asked in Nuclear Reactors
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. ...
Asked in Nuclear Energy, Mechanical Engineering
How moderator works in nuclear plant?
Neutrons released from the fissioning, or splitting, of Uranium or Plutonium atoms collide with the molecules of the moderator, losing some of their energy in the process. This slows the neutrons down (slow neutrons are referred to as "thermal" neutrons") so that they are more likely to cause fission when colliding with another Uranium or Plutonium atom. In the most common types of reactors the moderator used is ordinary distilled water which is also used as the coolant for the reactor. Graphite...
Asked in Chemistry
What substance does not allow electrons to move through it easily?
Graphite and lead are common electron moderators used to inhibit the motion of free electrons in Nuclear reactors. Pressurized water is also used for the same purpose. ...
Asked in Physics, Nuclear Energy, Nuclear Weapons
What is the moderator in nuclear power plants?
The moderator in a nuclear power plant is the substance that is used to slow down neutrons that are generated by the fission reactions. When fissile material fissions, fission fragments appear, as do neutrons. These neutrons, which leave the fission reaction with a heap of kinetic energy, might go on to cause more fissions (in a chain reactions) if they can be thermalized (slowed). Slowing (moderating) the neutrons increases the probability that they will be absorbed to cause another fission. Depending on the plant...
Does nuclear fission occur in the earth's surface?
About 3 billion years ago, when U235 was much more common, it did. Look up the Oklo natural reactors in Africa for an example. There were probably other sites too. Manmade nuclear power reactors. Manmade nuclear weapons. ...
Asked in Chemistry, Nuclear Reactors
What element is put into nuclear reactors?
In fission reactors (by far the most common type), uranium, plutonium and thorium can be used. In fusion reactors (much less common, most are simply prototypes still being tested), hydrogen (or the isotopes deuterium or tritium) or helium can be used. ...
What is the form of matter found in lightning bolts nuclear reactors and stars?
I really can not think of any common to all three. Lighting and stars contain matter in the form known as plasma (i.e. hot ionized gas) but nuclear reactors don't. ...
Asked in Nuclear Energy, Nuclear Reactors
What is the Form of matter found in lighting bolts nuclear reactors and stars?
Lightning bolts are discharges of electricity. Nuclear reactors contain mainly uranium. Stars contain light elements undergoing nuclear fusion. I don't see any common form of matter. Actually, plasma is found in all of them. ...
What element is a common fuel for nuclear reactors?
Uranium is the most common, though thorium will have great use in the future. The early reactors were designed to produce maximum quantities of Uranium and Plutonium for weapons. The electrical power was almost a bye product. ...
Asked in Nuclear Reactors, Nuclear Fusion
What metal do power stations use as a liquid cooler?
Most current nuclear power plants just use ordinary water as coolant. However experimental reactors have been built using: Mercury NaK - Sodium Potassium alloy Lead Solder - Tin Lead alloy Oil (which also acts as moderator to slow neutrons) etc. NaK was the most common in fast breeder power reactors. ...
What is a nuclear change?
A nuclear change -- involves changes in nuclear structure, such as fission (splitting) of a nucleus or an atom, or fusion (combining) of neutrons and protons to form heavier atoms. This involves about 1,000,000 times as much energy as a chemical change. And also a nuclear reactor is a device to initiate and control a sustained nuclear chain reaction. The most common use of nuclear reactors is for the generation of electrical power (see Nuclear power) and for the power in some...
Asked in Nuclear Energy, Nuclear Weapons
How common is nuclear energy in the United States?
There are 104 operating nuclear power reactors in the US, but many states do not have any whilst some like Illinois have a number. You can see a map at www.nrc.gov ...
Asked in Chemistry, Technology, Uranium
What is the most common use for uranium?
For making energy in nuclear reactors. Highly enriched uranium could also be used in war fare as well. Applications of uranium: - nuclear fuel for nuclear power reactors - explosive for nuclear weapons - material for armors and projectiles - catalyst - additive for glass and ceramics (to obtain beautiful green colors) - toner in photography - mordant for textiles - shielding material (depleted uranium) - ballast - and other minor applications ...
Asked in Physics, Energy, Nuclear Energy
Examples of nuclear energy?
The most common examples of nuclear energy at the present time are the PWR and BWR reactors. There are 104 operating reactors in the US and about 50 in France. The Canadian developed PHWR is also well established and has been built in India as well as Canada. In the UK the AGR advanced gas cooled reactor has been successfully operated. ...