Recent advances in design and R&D for the Quasi-Poloidal Stellarator experiment

J. F. Lyon; B. E. Nelson; R. D. Benson; L. A. Berry; M. J. Cole; P. J. Fogarty; K. D. Freudenberg; P. L. Goranson; J. H. Harris; P. Heitzenroeder; A. D. Lumsdaine; M. A. Madhukar; G. H. Neilson; T. E. Shannon; D. A. Spong

doi:10.1016/j.fusengdes.2007.03.059

Recent advances in design and R&D for the Quasi-Poloidal Stellarator experiment

J. F. Lyon, B. E. Nelson, R. D. Benson, L. A. Berry, M. J. Cole, P. J. Fogarty, K. D. Freudenberg, P. L. Goranson, J. H. Harris, P. Heitzenroeder, A. D. Lumsdaine, M. A. Madhukar, G. H. Neilson, T. E. Shannon, D. A. Spong

Research output: Contribution to journal › Article › peer-review

Abstract

Engineering innovation is required to reduce cost and risk in fabrication for the Quasi-Poloidal Stellarator being developed to test key physics issues at very low plasma aspect ratio. Complex, highly accurate, stainless steel modular coil winding forms are cast and machined; conductor is wound directly onto the winding forms; a vacuum-tight cover is welded over each coil pack; the coils are vacuum pressure impregnated; the completed coils are installed in an external vacuum vessel. An internally cooled, compacted cable conductor that can be wound into complex 3-D shapes was developed. The largest and most complex of the winding forms has been cast using a patternless process (machined sand molds) and a high-temperature pour. The resulting casting required <1/10 the major weld repairs of similar sand castings using conventional patterns. As a result, QPS differs significantly in design and construction from other toroidal devices.

Original language	English
Pages (from-to)	575-582
Number of pages	8
Journal	Fusion Engineering and Design
Volume	82
Issue number	5-14
DOIs	https://doi.org/10.1016/j.fusengdes.2007.03.059
State	Published - Oct 2007

Funding

This research was supported by the US Department of Energy under contract DE-AC05-00OR22725 with UT-Battelle, LLC.

Funders	Funder number
U.S. Department of Energy	DE-AC05-00OR22725

Keywords

Magnet
Magnet R&D
Stellarator

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Access to Document

10.1016/j.fusengdes.2007.03.059

Cite this

Lyon, J. F., Nelson, B. E., Benson, R. D., Berry, L. A., Cole, M. J., Fogarty, P. J., Freudenberg, K. D., Goranson, P. L., Harris, J. H., Heitzenroeder, P., Lumsdaine, A. D., Madhukar, M. A., Neilson, G. H., Shannon, T. E., & Spong, D. A. (2007). Recent advances in design and R&D for the Quasi-Poloidal Stellarator experiment. Fusion Engineering and Design, 82(5-14), 575-582. https://doi.org/10.1016/j.fusengdes.2007.03.059

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abstract = "Engineering innovation is required to reduce cost and risk in fabrication for the Quasi-Poloidal Stellarator being developed to test key physics issues at very low plasma aspect ratio. Complex, highly accurate, stainless steel modular coil winding forms are cast and machined; conductor is wound directly onto the winding forms; a vacuum-tight cover is welded over each coil pack; the coils are vacuum pressure impregnated; the completed coils are installed in an external vacuum vessel. An internally cooled, compacted cable conductor that can be wound into complex 3-D shapes was developed. The largest and most complex of the winding forms has been cast using a patternless process (machined sand molds) and a high-temperature pour. The resulting casting required <1/10 the major weld repairs of similar sand castings using conventional patterns. As a result, QPS differs significantly in design and construction from other toroidal devices.",

keywords = "Magnet, Magnet R&D, Stellarator",

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Lyon, JF, Nelson, BE, Benson, RD, Berry, LA, Cole, MJ, Fogarty, PJ, Freudenberg, KD, Goranson, PL, Harris, JH, Heitzenroeder, P, Lumsdaine, AD, Madhukar, MA, Neilson, GH, Shannon, TE & Spong, DA 2007, 'Recent advances in design and R&D for the Quasi-Poloidal Stellarator experiment', Fusion Engineering and Design, vol. 82, no. 5-14, pp. 575-582. https://doi.org/10.1016/j.fusengdes.2007.03.059

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AU - Benson, R. D.

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AU - Fogarty, P. J.

AU - Freudenberg, K. D.

AU - Goranson, P. L.

AU - Harris, J. H.

AU - Heitzenroeder, P.

AU - Lumsdaine, A. D.

AU - Madhukar, M. A.

AU - Neilson, G. H.

AU - Shannon, T. E.

AU - Spong, D. A.

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AB - Engineering innovation is required to reduce cost and risk in fabrication for the Quasi-Poloidal Stellarator being developed to test key physics issues at very low plasma aspect ratio. Complex, highly accurate, stainless steel modular coil winding forms are cast and machined; conductor is wound directly onto the winding forms; a vacuum-tight cover is welded over each coil pack; the coils are vacuum pressure impregnated; the completed coils are installed in an external vacuum vessel. An internally cooled, compacted cable conductor that can be wound into complex 3-D shapes was developed. The largest and most complex of the winding forms has been cast using a patternless process (machined sand molds) and a high-temperature pour. The resulting casting required <1/10 the major weld repairs of similar sand castings using conventional patterns. As a result, QPS differs significantly in design and construction from other toroidal devices.

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Recent advances in design and R&D for the Quasi-Poloidal Stellarator experiment

Abstract

Funding

Keywords

UN SDGs

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