Author: D. P. StotlerPublisher:
ISBN:
Category :
Languages : en
Pages : 25
Book Description
Simulation of a Compact Ignition Tokamak Discharge (CIT-2L)
Author: D. P. StotlerSimulation of a Compact Ignition Tokamak
Author: Glenn BatemanEnergy Research Abstracts
Author: Energy Research Abstracts
Author: ERDA Energy Research Abstracts
Author: Time-dependent Simulations of a Compact Ignition Tokamak
Author: D. P. StotlerTSC (Tokamak Simulation Code) Disruption Scenarios and CIT (Compact Ignition Tokamak) Vacuum Vessel Force Evolution
Author: Publisher:
ISBN:
Category :
Languages : en
Pages : 23
Book Description
The Tokamak Simulation Code and the TWIR postprocessor code have been used to develop credible plasma disruption scenarios for the Compact Ignition Tokamak (CIT) in order to predict the evolution of forces on CIT conducting structures and to provide results required for detailed structural design analysis. The extreme values of net radial and vertical vacuum vessel (VV) forces were found to be F{sub R}=-12.0 MN/rad and F{sub Z}=-3.0 MN/rad, respectively, for the CIT 2.1-m, 11-MA design. Net VV force evolution was found to be altered significantly by two mechanisms not noted previously. The first, due to poloidal VV currents arising from increased plasma paramagnetism during thermal quench, reduces the magnitude of the extreme F{sub R} by 15-50% and modifies the distribution of forces substantially. The second effect is that slower plasma current decay rates give more severe net vertical VV loads because the current decay occurs when the plasma has moved farther from midplane than is the case for faster decay rates. 7 refs., 9 figs., 1 tab.
INIS Atomindex
Author: Pulse Length Assessment of Compact Ignition Tokamak Designs
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
A time-dependent zero-dimensional code has been developed to assess the pulse length and auxiliary heating requirements of Compact Ignition Tokamak (CIT) designs. By taking a global approach to the calculation, parametric studies can be easily performed. The accuracy of the procedure is tested by comparing with the Tokamak Simulation Code which uses theory-based thermal diffusivities. A series of runs is carried out at various levels of energy confinement for each of three possible CIT configurations. It is found that for cases of interest, ignition or an energy multiplication factor Q /approx gt/ 7 can be attained within the first half of the planned five-second flattop with 10--40 MW of auxiliary heating. These results are supported by analytic calculations. 18 refs., 7 figs., 2 tabs.
Author: