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How are nuclear reactors kept safe?
There are many safety procedures put in place to keep a nuclear reactor safe, first of all control rods are used inside the reactor to stop the fission reaction running out of control and melting the reactor core, constant water(coolant) is kept pumping around the reactor cool and to help soak up some of the neutrons and x-ray scans are used to check that there are no natural cracks inside the reactor.
What Materials are needed to build a nuclear reactor?
Steel for the pressure vessel and pressure circuits, concrete for shielding and structural foundations etc, uranium and zirconium for the fuel. These are the main materials, of course there are many components like control rods and actuators, pumps, valves, instruments and so on.
What is diff between Assembly and class library?
Number of dll files between the 2 terms. Class library is an abstraction or general term to describe the assemblies that are common used by applications. It is consisted of many assemblies, not just one. An assembly is a dll with manifest. It may be specialized, and may not be a "library" assembly. However, any assembly can be one of the library assemblies (like you can have any book as a part of your private library collection), if you want to do so. For example, I have created some library assemblies that maybe useless outside of my work area, yet they have been very powerful and handy within my team.
What is the difference between inductor and inductance?
Inductors can be used for a great many purposes. Terms, such as 'choke', 'reactor', etc., describe applications of inductors.
Who invented the first nuclear reactor in India?
The nuclear reactor wasn't invented in India. Nuclear power was being researched in England, Germany, Austria, Russia and the USA during the 1930s and 1940s. Idaho was the location of the first electricity generation using a nuclear reactor in 1951 with Russia operating the first to supply electricity to a grid. India's entry to nuclear power generation followed many years after the intial development work has been completed.
A large modern nuclear power plant has approximately how many fuel assemblies in its core?
A large modern nuclear power plant typically has around 200-250 fuel assemblies in its core. Each fuel assembly contains numerous fuel rods that house the uranium fuel used to generate heat for electricity production.
How many fuel rods in a reactor?
The number of fuel pins in a reactor will vary depending on its design and objectives. In one reactor that I worked with, I seem to recall 137 fuel assemblies, with four bundles each, with 62 fuel pins each. That translates to 33,976 fuel pins in the reactor, each about 12 feet long.
How many fuel assemblies in its core does a large modern nuclear power plant?
It depends on the particular design and the design objectives. One plant that I worked at had 137 control rods, each having four bundles, for a total bundle count of 548 assemblies. Each assembly had 62 fuel rods and two water rods in an 8 x 8 matrix.
How many gallons of fuel does a nuclear submarine hold?
A nuclear submarine has a reactor . There is no liquid fuel at all.
What element is a reactor fuel?
Uranium-235 or Plutonium-239, or Uranium-233. Also many transuranics, like Americium make good fuel.
How many methods are there to give heat to the reactor?
If you mean a nuclear reactor, and not a chemical one, there is only one way, and that is by nuclear fission in the fuel
How many kilos of uranium in a nuclear reactor?
The amount of uranium in a nuclear reactor depends on its size and design. On average, a typical reactor may contain several tons of uranium fuel in the form of uranium dioxide pellets that are stacked in fuel rods. For example, a 1000-megawatt nuclear reactor may have around 100-150 tons of uranium fuel.
How many fuel assemblies does a large modern nuclear power plant have in its core?
It varies, according to the design, but one that I am familiar with had 544 bundles, made up into about 130 some odd assemblies each comprising four bundles and one control rod. It was a 2400 MW Thermal BWR. (850 MW Electric). I would imagine that some of the newer or larger plants would have more.As an example, Millstone Unit 3 in Connecticut, a 1227 MWe PWR licensed in 1986, contains 193 fuel assemblies, each containing 264 fuel rods, each 12 feet long.As another example, Nine Mile Point Unit 2 in New York, an 1140 MWe BWR licensed in 1987, contains 764 fuel assemblies. The number of fuel rods per assembly and the length of each fuel rod is not part of the public domain.
How many pounds of uranium are in a nuclear reactor?
The quantity depends on: the type of the reactor, power of the reactor, enrichment of uraniu, chemical form of the fuel, etc. For a research reactor some kilograms, for a power reactor more than 100 tonnes/year.
How many layers of containment are needed for nuclear energy?
It depends on the particular design, but most modern designs have four layers of containment.The zircalloy fuel pin itselfThe reactor pressure vesselThe primary containmentThe secondary containment
How many fuel assemblies does a large modern nuclear plant have in its core?
It varies, according to the design, but one that I am familiar with had 544 bundles, made up into about 130 some odd assemblies each comprising four bundles and one control rod. It was a 2400 MW Thermal BWR. (850 MW Electric). I would imagine that some of the newer or larger plants would have more.As an example, Millstone Unit 3 in Connecticut, a 1227 MWe PWR licensed in 1986, contains 193 fuel assemblies, each containing 264 fuel rods, each 12 feet long.As another example, Nine Mile Point Unit 2 in New York, an 1140 MWe BWR licensed in 1987, contains 764 fuel assemblies. The number of fuel rods per assembly and the length of each fuel rod is not part of the public domain.
How many fuel channels does an advanced gas-cooled reactor have?
I don't believe that the design is fixed at this time. General Atomics and others have been working on designs and one has been built in South Africa, but the companies are still working out the final design. A link is provided to an interesting read on the latest evelopments. The advanced gas-cooled reactors, at least the ones I know, have been built in the UK but not elsewhere. The last ones built were at Heysham Stage 2 and Torness, in Scotland. As far as I can remember the number of channels was 332. I think the first answer may have been on the pebble bed reactor, which is gas cooled and advanced, but not the same as the AGR in UK.
