Wendelstein 7-X

Stellarator diagram - spolesystem (blå), plasma (gul), en magnetfeltlinje (grøn) på plasmaoverfladen.

Fusionsreaktoren Wendelstein 7-X (forkortet W7-X) er en eksperimentel stellarator bygget i Greifswald, Tyskland, af Max Planck Institute for Plasma Physics (IPP) og færdiggjort i oktober 2015.[1][2] W7-X's formål er at fremme stellarator teknologi. Denne eksperimentelle reaktor kommer ikke til at producere elektricitet, og anvendes kun til at evaluere hovedkomponenterne til et fremtidigt fusionskraftværk. W7-X er udviklet på basis af erfaringer fra dens forgænger Wendelstein 7-AS.

Pr. 2015 er Wendelstein 7-X reaktoren den største stellarator i verden. W7-X er designet til at opnå op til 30 minutters vedvarende plasma og den sidste opgradering er blevet afsluttet. W7-X er klar til driftsforsøg fra efteråret 2022.[3] Den 15. februar 2023 blev der lavet en testplasmaudladning på 1,3 GJ over otte minutter.[4]

Projektets navn, der refererer til bjerget Wendelstein i Bayern, blev navngivet i slutningen af 1950'erne, med reference til det tidligere Project Matterhorn fra Princeton University.[5] (Matterhorn er et bjerg)

Forskningsanlægget er et uafhængig partnerprojekt med deltagerne Max-Planck Institute for Plasma Physics og University of Greifswald.

Se også

Referencer

  1. ^ Introduction – the Wendelstein 7-X stellarator Retrieved 5 November 2014.
  2. ^ Clery, Daniel (21. oktober 2015). "The bizarre reactor that might save nuclear fusion". sciencemag.org. Science Magazine. Hentet 25. oktober 2015.
  3. ^ idw-online.de: Federal Research Minister Stark-Watzinger and Minister Martin visit IPP Greifswald, backup: Citat: "...After two successful initial operation phases, the Wendelstein 7-X fusion device has been further expanded. This final step, which upgrades the machine to demonstrate plasma pulses of up to 30 minutes with increased heating power, has now been completed and Wendelstein 7-X is finished. A water-cooled inner cladding and the new centrepiece, a water-cooled divertor, complete the device. In autumn 2022, Wendelstein 7-X will go back into operation...", backup
  4. ^ February 22, 2023, ipp.mpg.de: Wendelstein 7-X reaches milestone: Power plasma with gigajoule energy turnover generated for eight minutes. After successful recommissioning in autumn 2022, the Greifswald nuclear fusion experiment has surpassed an important target Citat: "...On 15 February 2023, the researchers reached a new milestone: for the first time, they were able to achieve an energy turnover of 1.3 gigajoules in this device...", backup
  5. ^ WI-A, WI-B, WII-A, WII-B, W7-A:G. Grieger; H. Renner; H. Wobig (1985), "Wendelstein stellarators", Nuclear Fusion (tysk), vol. 25, no. 9, s. 1231, doi:10.1088/0029-5515/25/9/040

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Koordinater: 54°04′23″N 13°25′26″Ø / 54.073°N 13.424°Ø / 54.073; 13.424

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W7x 038.jpg
Forfatter/Opretter: user:Bernd vdB, Licens: CC BY-SA 3.0
Stellarator Wendelstein 7-X Gebäudekomplex, links die Experimenthalle
W7X-Spulen Plasma blau gelb.jpg
Forfatter/Opretter: Max-Planck Institut für Plasmaphysik, Licens: CC BY 3.0
Scheme of coil system (blue) and plasma (yellow) of the nuclear fusion plasma experiment Wendelstein 7-X under construction at the Max-Planck-Institut für Plasmaphysik, Greifswald, Germany. For example a magnetic field line is highlighted in green on the plasma surface shown in yellow.
W7-X Stellarator Experiment.jpg
Forfatter/Opretter: Gwurden, Licens: CC BY-SA 3.0
This is how the construction looked in May 2012. You can see the torus, offset in the test cell, and the large overhead crane. Note the workers for scale.
Stellarator Wendelstein 7-X Planar-Spulen Vermessung.jpg
Forfatter/Opretter: user:Bernd vdB, Licens: CC BY-SA 3.0
Stellarator Wendelstein 7-X Planar-Spulen Vermessung
Interior of W7-X stellarator.jpg
Forfatter/Opretter: Gwurden, Licens: CC BY-SA 3.0
This wide-angle view inside the W7-X stellarator (April 2013), shows the stainless cover plates, and the water-cooled copper backing plates (which will eventually be covered by graphite tiles) that are being installed as armor to protect against plasma/wall interactions.