Published August 27, 2020
| Version v1
Publication
Modelling of the JET DT Experiments in Carbon and ITER-like Wall Configurations
Description
In this paper numerical simulations with the self-consistent COREDIV code of the planned JET DT experiments
have been performed. First, record shot from the 1997 experiments was simulated and good agreement with
experimental data has been found. Direct extrapolation of the carbon wall results to the new ILW configuration
(discharge parameters as for the shot #42746 ) shows very good core plasma performance with even higher
fusion power but with too large power to the divertor. However, with the neon seeding the heat load and plate
temperatures can be efficiently reduced keeping good the plasma performance. Investigations have been done
also for the planned DT operation scenario based on a conventional ELMy H-mode at high plasma current
and magnetic field. Simulations for the reference ELMy H-mode shot #87412 show good agreement with the
experimental data but the direct extrapolation of the DD results to deuterium-tritium operation shows relatively poor performance in terms of the achieved fusion power. The situation improves, if the highest heating power is assumed (41 MW) and fusion powers in the excess of 12 MW can be achieved. All the high performance shots require the heat load control by neon seeding which shows rather beneficial effect on the plasma performance allowing for relatively wide operational window in terms of the amount of the allowed neon influx.
Abstract
EURATOM 633053Additional details
Identifiers
- URL
- https://idus.us.es/handle//11441/100500
- URN
- urn:oai:idus.us.es:11441/100500