izentrop wrote:As you are anti-science ...
This is the best of the year. you outdo yourself, Izy!
izentrop wrote:As you are anti-science ...
Nuclear: the most powerful magnet in the world on its way to the Iter reactor
AFP • 07 / 09 / 2021
A weight of 1.000 tons and the size of a seven-story building: the first part of a gigantic magnet, announced as the most powerful in the world, will arrive on Thursday at the site of the experimental nuclear fusion reactor Iter, in Saint-Paul -lez-Durance (Bouches-du-Rhône).
This magnet called "Central Solenoid" constitutes a major milestone of Iter, an international program bringing together 35 countries which aims to control the production of energy from the fusion of hydrogen, as in the heart of the Sun.
Manufactured by General Atomics in California, it consists of six modules, the first of which must arrive overnight from Wednesday to Thursday at the construction site of the future reactor, launched in 2010.
Transported by sea from the United States, this first 66-tonne piece arrived at the port of Marseille and is currently on its way to the Iter site, on the banks of the Durance, about a hundred kilometers away.
The other five modules of the magnet will complete the puzzle "no later than 2024," Bernard Bigot, CEO of Iter Organization, told AFP.
Once assembled, the "Central Solenoid" will weigh nearly 1.000 tons and be 18m high.
The superconducting magnet will be placed in the core of the tokamak fusion reactor, a huge ring-shaped magnetic chamber where the temperature can reach 150 million degrees. By heating the plasma (a hydrogen gas), it allows hydrogen nuclei to collide and merge into heavier helium atoms, releasing colossal energy.
The magnetic fields make it possible to confine the plasma in the enclosure, to prevent it from coming into contact with the walls and from cooling. But the more its volume increases, the more difficult it is to stabilize it.
It is to overcome this problem of scale that the magnet will be installed: "beating heart" of the tokamak, it will produce a variable magnetic field, going from zero to 13 tesla, "ie 300.000 times the value of the earth's magnetic field", details Bernard Bigot. It will therefore be the "key element" of stabilization.
Iter plans to inject an unprecedented volume of 830 m3 of plasma. "This is the condition for the plasma current to be self-sustaining and for more energy to be recovered than it is injected", up to ten times more, according to the expert in nuclear physics.
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moinsdewatt wrote:...
"It is to overcome this problem of scale that the magnet will be installed:" beating heart "of the tokamak, it will produce a variable magnetic field, going from zero to 13 tesla," ie 300.000 times the value of the earth's magnetic field " "...
For once, it's so huge that I ask to seethe merger may have turned a corner last weekend at the Massachusetts Institute of Technology. Researchers have tested a new type of magnet to confine molten plasma and produce more energy than consumed ...
To give an idea of the gain in magnetic performance of their creation, the researchers put forward an impressive ratio. Thanks to these magnets, which take the form of a long flat ribbon (about 270 km!), It is possible to achieve an equivalent magnetic field in a device forty times more compact than if magnets based on low temperature superconductors were used.
Another gain is that of energy consumption. A copper magnet requires around 200 million Watts to confine the plasma, while the one developed by MIT only asks ... 30 W. https://www.01net.com/actualites/le-mit ... 48069.html
https://trustmyscience.com/mit-annonce- ... nucleaire/
No, it's the opposite.GuyGadeboisLeRetour wrote:If it works, goodbye ITER, goodbye Cadarache, goodbye Areva and with billions to come for dismantling and billions screwed up!
izentrop wrote:No, it's the opposite.GuyGadeboisLeRetour wrote:If it works, goodbye ITER, goodbye Cadarache, goodbye Areva and with billions to come for dismantling and billions screwed up!
izentrop wrote:...
Another gain is that of energy consumption. A copper magnet requires around 200 million Watts to confine the plasma, while [size = 150] the one developed by MIT requires only ...
GuyGadeboisLeRetour wrote:If it works, goodbye ITER, goodbye Cadarache, goodbye Areva and with billions to come for dismantling and billions screwed up!
So ITER will have to change his mind and that will cost another arm !!!“When tested, the magnet hit 20 tesla, which is a unit of measurement indicating the strength of a magnet. (Like the automaker, it is named after engineer Nikola Tesla.) For reference, 20 tesla , that's 12 times more than the magnetic field of a traditional MRI or magnetic resonance imaging. It did so while consuming only about 30 watts of energy - several orders of magnitude less than l traditional copper conductor magnet that MIT had previously tested, which used 200 million watts "
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