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Title: Analysis Efforts Supporting NSTX Upgrades

Abstract

The National Spherical Torus Experiment (NSTX) is a low aspect ratio, spherical torus (ST) configuration device which is located at Princeton Plasma Physics Laboratory (PPPL) This device is presently being updated to enhance its physics by doubling the TF field to 1 Tesla and increasing the plasma current to 2 Mega-amperes. The upgrades include a replacement of the centerstack and addition of a second neutral beam. The upgrade analyses have two missions. The first is to support design of new components, principally the centerstack, the second is to qualify existing NSTX components for higher loads, which will increase by a factor of four. Cost efficiency was a design goal for new equipment qualification, and reanalysis of the existing components. Showing that older components can sustain the increased loads has been a challenging effort in which designs had to be developed that would limit loading on weaker components, and would minimize the extent of modifications needed. Two areas representing this effort have been chosen to describe in more details: analysis of the current distribution in the new TF inner legs, and, second, analysis of the out-of-plane support of the existing TF outer legs.

Authors:
Publication Date:
Research Org.:
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1001666
Report Number(s):
PPPL-4577
TRN: US1100433
DOE Contract Number:  
DE-ACO2-09CH11466
Resource Type:
Conference
Resource Relation:
Conference: Topical Meeting on the Technolgy of Fusion -ANS (Nov. 7-11,2010, Las Vegas, Nevada
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ASPECT RATIO; CONFIGURATION; DESIGN; DISTRIBUTION; EFFICIENCY; ELECTRIC CURRENTS; MODIFICATIONS; PHYSICS; PLASMA; NSTX

Citation Formats

H.Zhang, P. Titus, P. Rogoff, A.Zolfaghari, D. Mangra, M. Smith. Analysis Efforts Supporting NSTX Upgrades. United States: N. p., 2010. Web.
H.Zhang, P. Titus, P. Rogoff, A.Zolfaghari, D. Mangra, M. Smith. Analysis Efforts Supporting NSTX Upgrades. United States.
H.Zhang, P. Titus, P. Rogoff, A.Zolfaghari, D. Mangra, M. Smith. Mon . "Analysis Efforts Supporting NSTX Upgrades". United States. doi:. https://www.osti.gov/servlets/purl/1001666.
@article{osti_1001666,
title = {Analysis Efforts Supporting NSTX Upgrades},
author = {H.Zhang, P. Titus, P. Rogoff, A.Zolfaghari, D. Mangra, M. Smith},
abstractNote = {The National Spherical Torus Experiment (NSTX) is a low aspect ratio, spherical torus (ST) configuration device which is located at Princeton Plasma Physics Laboratory (PPPL) This device is presently being updated to enhance its physics by doubling the TF field to 1 Tesla and increasing the plasma current to 2 Mega-amperes. The upgrades include a replacement of the centerstack and addition of a second neutral beam. The upgrade analyses have two missions. The first is to support design of new components, principally the centerstack, the second is to qualify existing NSTX components for higher loads, which will increase by a factor of four. Cost efficiency was a design goal for new equipment qualification, and reanalysis of the existing components. Showing that older components can sustain the increased loads has been a challenging effort in which designs had to be developed that would limit loading on weaker components, and would minimize the extent of modifications needed. Two areas representing this effort have been chosen to describe in more details: analysis of the current distribution in the new TF inner legs, and, second, analysis of the out-of-plane support of the existing TF outer legs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Nov 29 00:00:00 EST 2010},
month = {Mon Nov 29 00:00:00 EST 2010}
}

Conference:
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