Compact Fusion Power Plant Concept Uses State-Of-The-Art Physics To Improve Energy Production
Arthur T Knackerbracket has processed the following story:
Fusion power plants use magnetic fields to hold a ball of current-carrying gas (called a plasma). This creates a miniature sun that generates energy through nuclear fusion. The Compact Advanced Tokamak (CAT) concept uses state-of-the-art physics models to potentially improve fusion energy production. The models show that by carefully shaping the plasma and the distribution of current in the plasma, fusion plant operators can suppress turbulent eddies in the plasma. These eddies can cause heat loss. This will enable operators to achieve higher pressures and fusion power with lower current. This advance could help achieve a state where the plasma sustains itself and drives most of its own current.
In this approach to tokamak reactors, the improved performance at reduced plasma current reduces stress and heat loads. This alleviates some of the engineering and materials challenges facing fusion plant designers. Higher pressure also increases an effect where the motion of particles in the plasma naturally generates the current required. This greatly reduces the need for expensive current drive systems that sap a fusion plant's potential electric power output. It also enables a stationary always-on" configuration. This approach leads to plants that suffer less stress during operation than typical pulsed approaches to fusion power, enabling smaller, less expensive power plants.
Reference: The advanced tokamak path to a compact net electric fusion pilot plant" by R.J. Buttery, J.M. Park, J.T. McClenaghan, D. Weisberg, J. Canik, J. Ferron, A. Garofalo, C.T. Holcomb, J. Leuer, P.B. Snyder and The Atom Project Team, 19 March 2021, Nuclear Fusion.
DOI: 10.1088/1741-4326/abe4af
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