How does the Wendelstein 7-X work?
How does the Wendelstein 7-X work?
The Wendelstein 7-X device is based on a five-field-period Helias configuration. It is mainly a toroid, consisting of 50 non-planar and 20 planar superconducting magnetic coils, 3.5 m high, which induce a magnetic field that prevents the plasma from colliding with the reactor walls.
In what year that the stellarator Wendelstein 7-X has been constructed?
Wendelstein 7-X, the world’s largest stellarator-type fusion device, will investigate the suitability of this type of device for a power station. Following nine years of construction work and more than a million assembly hours, the main assembly of the Wendelstein 7-X was completed in April 2014.
How does a stellarator work?
A stellarator is a machine that uses magnetic fields to confine plasma in the shape of a donut, called a torus. These magnetic fields allow scientists to control the plasma particles and create the right conditions for fusion reactions.
Is stellarator better than tokamak?
As such, the stellarators often operate at a higher density than tokamaks do. In the LHD, a super-dense core plasma (>1 × 1021 m−3) has been attained [23. H. Yamada, K.
How much energy does the tokamak produce?
It will produce a field of 13 tesla, equivalent to 280,000 times the Earth’s magnetic field.
What is ITER tokamak?
The ITER Tokamak The tokamak is an experimental machine designed to harness the energy of fusion. ITER will be the world’s largest tokamak, with a plasma radius (R) of 6.2 m and a plasma volume of 840 m³.
What is stellarator physics?
A stellarator is a plasma device that relies primarily on external magnets to confine a plasma. Scientists researching magnetic confinement fusion aim to use stellarator devices as a vessel for nuclear fusion reactions. The name refers to the possibility of harnessing the power source of the stars, such as the Sun.
Who invented stellarator?
Lyman SpitzerStellarator / Inventor
How do you get energy out of a tokamak?
Inside a tokamak, the energy produced through the fusion of atoms is absorbed as heat in the walls of the vessel. Just like a conventional power plant, a fusion power plant will use this heat to produce steam and then electricity by way of turbines and generators.
How much can 59 megajoules power?
11 megawatts
The experiments produced 59 megajoules of energy over five seconds (11 megawatts of power). This is more than double what was achieved in similar tests back in 1997. It’s not a massive energy output – only enough to boil about 60 kettles’ worth of water.
How much energy does ITER produce?
500 MW
ITER has been designed for high fusion power gain. For 50 MW of power injected into the Tokamak via the systems that heat the plasma it will produce 500 MW of fusion power for periods of 400 to 600 seconds.
How much energy does a tokamak produce?
It is intended as a demonstration that a practical fusion reactor is possible, and will produce 500 megawatts of power.
Will Wendelstein 7-X produce energy?
Although Wendelstein 7-X will not produce energy, it hopes to prove that stellarators are suitable for application in power plants. Its aim is to achieve for the first time in a stellarator the quality of confinement afforded by competing devices of the tokamak type.
What’s new in the Wendelstein 7-X plasma vessel?
Unlike in the first experimentation phase 2015/16 the plasma vessel of Wendelstein 7-X has been fitted with interior cladding since September last year. The vessel walls are now covered with graphite tiles, thus allowing higher temperatures and longer plasma discharges.
How long does a Wendelstein 7-X discharge last?
They are to make discharges lasting up to 30 minutes possible, during which it can be checked whether Wendelstein 7-X permanently meets its optimisation objectives as well. The objective of fusion research is to develop a power plant favourable to the climate and environment.