Projection of ITER performance using the multi-machine L- and H- mode databases

Conference · Tue Nov 01 04:00:00 EST 1994

OSTI ID:10192157

Kaye, S M ^[1]

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1. Princeton Univ., NJ (United States). Plasma Physics Lab.

An overview of recent analyses of H- and L-mode confinement and L- to H-mode threshold data is presented. The standard subset of the H-mode database, consisting of about 1600 time slices from six tokamaks, leads to power law scalings for ELMy and ELM-free discharges, both of which predict a confinement time for ITER of approximately 5.5 sec. The analysis indicates a strong dependence of confinement time scaling and prediction on the neutral penetration from the divertor into the main chamber. Consideration of dimensionless variables suggest scaling expressions for the H-mode threshold which predict threshold powers for ITER of between 100 and 200 MW. Finally, the L-mode database has been updated to contain over 1500 time-slices from eleven tokamaks. A preliminary empirical scaling based on the total confinement time has been developed.

• Research Organization: Princeton Univ., NJ (United States). James Forrestal Research Center; General Atomics, San Diego, CA (United States); Massachusetts Inst. of Tech., Cambridge, MA (United States)
• Sponsoring Organization: USDOE, Washington, DC (United States)
• DOE Contract Number: AC02-76CH03073; AC03-89ER51114; AC02-78ET51013
• OSTI ID: 10192157
• Report Number(s): PPPL-CFP--3167; IAEA-CN--60/E-P-3; CONF-940933--10; ON: DE95002221; BR: 35AT10020/35AT15040; 35AF01000/35AF03000
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700310
CONFINEMENT TIME
DATA BASE MANAGEMENT
H-MODE PLASMA CONFINEMENT
ITER TOKAMAK
PERFORMANCE
PLASMA CONFINEMENT