Zobrazeno 1 - 10
of 22
pro vyhledávání: '"R.J. Gold"'
Autor:
E.D. Emdee, R.J. Goldston
Publikováno v:
Nuclear Materials and Energy, Vol 41, Iss , Pp 101737- (2024)
Recent calculations of the lithium vapor box divertor using SOLPS have demonstrated that far Scrape-Off Layer (SOL) baffling and the corresponding far SOL lithium evaporation are unnecessary for divertor performance. The plasma, acting as a virtual b
Externí odkaz:
https://doaj.org/article/01a1b6eb50c24d2c8f5fbeab0e006497
Publikováno v:
Nuclear Fusion, Vol 64, Iss 8, p 086047 (2024)
Commercial fusion reactors will be faced with extremely high divertor target heat fluxes that will require mitigation. Simulations of detachment in an NSTX-U scenario projected to have 92 MW m ^−2 unmitigated peak target heat flux are presented, wh
Externí odkaz:
https://doaj.org/article/60051bbe8e98413db457db4b415caff5
Autor:
E.D. Emdee, R.J. Goldston
Publikováno v:
Nuclear Materials and Energy, Vol 34, Iss , Pp 101335- (2023)
SOLPS calculations of lithium vapor box divertor designs on NSTX-U are presented. Predictive high power simulations (Pheat=10 MW, qpeakunmitigated∼65 MW/m2) are used to compare and contrast two divertor designs. Specifically a baffled “box” div
Externí odkaz:
https://doaj.org/article/975a74a73bd644a0a144b18e7fd1da6f
Autor:
E.D. Emdee, R.J. Goldston
Publikováno v:
Nuclear Fusion, Vol 63, Iss 9, p 096003 (2023)
The lithium vapor box divertor is a proposed divertor design that will minimize contamination of the upstream plasma in a fusion device, while also ensuring protection of the target. In this design lithium is evaporated near the target by high temper
Externí odkaz:
https://doaj.org/article/99c10418e6aa433f9d38a2384d15080c
Publikováno v:
Nuclear Materials and Energy, Vol 19, Iss , Pp 244-249 (2019)
A detached divertor is predicted to be necessary to handle the heat fluxes of a demonstration fusion power plant. The lithium vapor box divertor localizes dense lithium vapor to cause stable detachment. This localization is formed by local evaporatio
Externí odkaz:
https://doaj.org/article/9f4c7f2802714bdbbb03bb6667ac02ac
Publikováno v:
Nuclear Materials and Energy, Vol 18, Iss , Pp 350-355 (2019)
The lithium vapor box divertor is a potential solution for power exhaust in toroidal confinement devices. The divertor plasma interacts with a localized, dense cloud of lithium vapor, leading to volumetric radiation, cooling, recombination, and detac
Externí odkaz:
https://doaj.org/article/aec1bb9fcb054e40a8d8e49ac867b61b
Publikováno v:
Nuclear Materials and Energy, Vol 18, Iss , Pp 233-238 (2019)
Results are presented for one- and two-dimensional (2D) edge plasma transport simulations for strong injection of lithium (Li) in the divertor region of a tokamak. The model includes the scrape-off layer and divertor regions, and, for 2D, a small reg
Externí odkaz:
https://doaj.org/article/9940d1b97dfa429ab87e976ee308c945
Publikováno v:
Nuclear Materials and Energy, Vol 27, Iss , Pp 101004- (2021)
The unmitigated heat flux in attached operation of a fusion power plant is predicted to be destructive to any solid divertor surface. Detachment, whereby the plasma pressure drops significantly before reaching the divertor target thus greatly reducin
Externí odkaz:
https://doaj.org/article/d0d802433c844e59a8cf745e9ff65b05
Autor:
A.O. Brown, R.J. Goldston
Publikováno v:
Nuclear Materials and Energy, Vol 27, Iss , Pp 101002- (2021)
We generalize the low-gas-puff Heuristic Drift (HD) model of the power scrape-off layer width to take into account both the enhanced parallel confinement time in the SOL at high collisionality, due to enhanced thermal resistivity, and the increase of
Externí odkaz:
https://doaj.org/article/53f7b6ae070d4436a73d1379d1923195
Autor:
Jacob A. Schwartz, R.J. Goldston
Publikováno v:
Nuclear Materials and Energy, Vol 26, Iss , Pp 100901- (2021)
The lithium vapor-box divertor is a possible fusion power exhaust solution. It uses condensation pumping to create a gradient of vapor density in a divertor slot; this should allow a stable detachment front without active feedback. As initial explora
Externí odkaz:
https://doaj.org/article/b73c16800f144c3d870c61eb115bcfdc