| 词条 | Dynomak |
| 释义 |
HistoryThe project started as a class project taught by professor Thomas Jarboe; after the end of the class, the design was continued by Jarboe and PhD student Derek Sutherland, who had worked on reactor design at MIT.[2] As of 2014 plasma densities reached 5x1019 m−3, temperatures of 60 eV, and maximum operation time of 1.5 ms.{{citation needed|date=November 2014}} No confinement time results were available. At those temperatures no fusion, alpha heating or neutron production were expected. DesignDynomak incorporates an ITER-developed cryogenic pumping system. Spheromak use an oblate spheroid instead of a tokamak configuration without a central core and without ITER's large, complex superconducting magnets. The magnetic fields are produced by putting electrical fields into the center of the plasma using superconducting tapes wrapped around the vessel, such that the plasma contains itself.[4] Dynomak is smaller simpler and cheaper to build than ITER, while producing more power. The fusion reaction is self-sustaining as excess heat is drawn off by a molten salt blanket to power a steam turbine.[4] The prototype was about one tenth the scale of a commercial project, is able to sustain plasma efficiently. Higher output would require increased scale and higher plasma temperature.[2] CommercializationUnlike other fusion reactor designs (such as ITER), the Dynomak would be, according to its engineering team, comparable in costs to a conventional coal plant.[2] Dynomak was expected to cost a tenth of ITER and produce five times as much energy at an efficiency of 40 percent. A one gigawatt Dynomak would cost US$2.7 billion compared to US$2.8 billion for a coal plant.[4] See also
References1. ^D.A. Sutherland, T.R. Jarboe et al., "The dynomak: An advanced spheromak reactor concept with imposed-dynamo current drive and next-generation nuclear power technologies", Fusion Engineering and Design, Volume 89, Issue 4, April 2014, Pages 412–425 2. ^1 2 3 Michelle Ma, "UW fusion reactor concept could be cheaper than coal", University of Washington, October 8, 2014 3. ^Evan Ackerman, "Inside the Dynomak", IEEE Spectrum, November 26, 2014 4. ^1 2 {{Cite web|url=http://newatlas.com/dynomak-fusion-reactor-university-washington/34174|title=University of Washington fusion reactor promises "cheaper than coal" energy|last=Szondy|first=David|date=October 12, 2014|website=newatlas.com|publisher=|access-date=2016-10-13}} 4 : Research projects|Fusion power|University of Washington|Plasma physics |
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