Pub Date : 2002-11-07DOI: 10.1109/FUSION.2002.1027720
S. Cho, D. L. Kim, N. Her, K. Im, M. Kwon, G. S. Lee, B. J. Yoon, S. In
The KSTAR Vacuum vessel thermal shield is composed of multilayer insulation (MLI), cryopanel and supports. One of the major design parameters for the design of thermal shield cryopanel and supports is the eddy current induced during plasma disruption. The eddy current creates joule heating as well as electromagnetic (EM) loads combining with magnetic fields. Since the cryopanel should be maintained at a cryogenic temperature lower than 80 K, even a small amount of joule heating may play an important role in increasing the cyropanel temperature. Also the EM loads are very critical mechanical forces for the design of structure of the thermal shield, especially for the supports. Joule heating and EM loads on the vacuum vessel thermal shield during plasma disruption were calculated to provide the design requirement of the thermal shield. Based on the joule heating and EM loads, the structural and thermal stress analyses were performed for the assessment of the structural robustness of the vacuum vessel thermal shield. It was found that the effect of joule heating on the thermal shield design is minimal, but the EM loads are important for the design of cryopanel as well as supports. The optimal number and size of supports were determined.
{"title":"KSTAR vacuum vessel thermal shield analysis","authors":"S. Cho, D. L. Kim, N. Her, K. Im, M. Kwon, G. S. Lee, B. J. Yoon, S. In","doi":"10.1109/FUSION.2002.1027720","DOIUrl":"https://doi.org/10.1109/FUSION.2002.1027720","url":null,"abstract":"The KSTAR Vacuum vessel thermal shield is composed of multilayer insulation (MLI), cryopanel and supports. One of the major design parameters for the design of thermal shield cryopanel and supports is the eddy current induced during plasma disruption. The eddy current creates joule heating as well as electromagnetic (EM) loads combining with magnetic fields. Since the cryopanel should be maintained at a cryogenic temperature lower than 80 K, even a small amount of joule heating may play an important role in increasing the cyropanel temperature. Also the EM loads are very critical mechanical forces for the design of structure of the thermal shield, especially for the supports. Joule heating and EM loads on the vacuum vessel thermal shield during plasma disruption were calculated to provide the design requirement of the thermal shield. Based on the joule heating and EM loads, the structural and thermal stress analyses were performed for the assessment of the structural robustness of the vacuum vessel thermal shield. It was found that the effect of joule heating on the thermal shield design is minimal, but the EM loads are important for the design of cryopanel as well as supports. The optimal number and size of supports were determined.","PeriodicalId":44192,"journal":{"name":"NINETEENTH CENTURY MUSIC","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2002-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85505740","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"艺术学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2002-11-07DOI: 10.1109/FUSION.2002.1027670
W. Davis, P. Roney, T. Carroll, T. Gibney, D. Mastrovito
The MDSplus Data Acquisition System has been used successfully on NSTX at PPPL since early 1999. While the X-Window-based tools supplied with MDSplus are powerful, and both the IDL programming language and the supplied TDI language are effective for complex and specialized analyses, some users prefer the convenience of applications that can be run in a Web browser. Web users do not need to know about X-Windows, or even have accounts or privileges on server computers. The MDSplots page reads MDSplus "Scope" setup files and plots MDSplus signals with overlays. It uses a Perl script to open a pipe to an IDL subprocess. The TreeSearch page provides several options for finding information in MDSplus trees. The MDSshots page lists shots where the maximum for a specified signal is above or below a specified value. A variety of information in an MS-SQL database is also accessible from a Web browser. These utilities could be used at other sites which keep data in MDSplus.
{"title":"Web interfaces to MDSplus data","authors":"W. Davis, P. Roney, T. Carroll, T. Gibney, D. Mastrovito","doi":"10.1109/FUSION.2002.1027670","DOIUrl":"https://doi.org/10.1109/FUSION.2002.1027670","url":null,"abstract":"The MDSplus Data Acquisition System has been used successfully on NSTX at PPPL since early 1999. While the X-Window-based tools supplied with MDSplus are powerful, and both the IDL programming language and the supplied TDI language are effective for complex and specialized analyses, some users prefer the convenience of applications that can be run in a Web browser. Web users do not need to know about X-Windows, or even have accounts or privileges on server computers. The MDSplots page reads MDSplus \"Scope\" setup files and plots MDSplus signals with overlays. It uses a Perl script to open a pipe to an IDL subprocess. The TreeSearch page provides several options for finding information in MDSplus trees. The MDSshots page lists shots where the maximum for a specified signal is above or below a specified value. A variety of information in an MS-SQL database is also accessible from a Web browser. These utilities could be used at other sites which keep data in MDSplus.","PeriodicalId":44192,"journal":{"name":"NINETEENTH CENTURY MUSIC","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2002-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88141076","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"艺术学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2002-11-07DOI: 10.1109/FUSION.2002.1027680
A. Sakasai, S. Ishida, M. Matsukawa, G. Kurita, N. Akino, T. Ando, T. Arai, H. Ichige, A. Kaminaga, T. Kato, K. Kizu, K. Masaki, Y. Miura, Y. Miyo, A. Morioka, S. Sakurai, T. Sasajima, S. Takeji, H. Tamai, K. Tsuchiya, K. Urata, J. Yagyu, K. Tobita, H. Takenaga, K. Shimizu, M. Kikuchi
The modification of JT-60 is planned as a fully superconducting tokamak (JT-60SC). The mission of JT-60SC program is to establish scientific and technological bases for an advanced operation in an economically and environmentally attractive DEMO reactor and ITER. The research objectives are to accomplish high performance steady state operation with high beta and non-inductive full current drive, with high bootstrap current fraction, and demonstrate the plasma applicability of reduced-activation material for a plasma of break-even class relevant to the reactor plasma. Basic design of JT-60SC has been completed and the detailed design is under way. The engineering design for main components of JT-60SC is described.
{"title":"Engineering design study of JT-60 superconducting modification","authors":"A. Sakasai, S. Ishida, M. Matsukawa, G. Kurita, N. Akino, T. Ando, T. Arai, H. Ichige, A. Kaminaga, T. Kato, K. Kizu, K. Masaki, Y. Miura, Y. Miyo, A. Morioka, S. Sakurai, T. Sasajima, S. Takeji, H. Tamai, K. Tsuchiya, K. Urata, J. Yagyu, K. Tobita, H. Takenaga, K. Shimizu, M. Kikuchi","doi":"10.1109/FUSION.2002.1027680","DOIUrl":"https://doi.org/10.1109/FUSION.2002.1027680","url":null,"abstract":"The modification of JT-60 is planned as a fully superconducting tokamak (JT-60SC). The mission of JT-60SC program is to establish scientific and technological bases for an advanced operation in an economically and environmentally attractive DEMO reactor and ITER. The research objectives are to accomplish high performance steady state operation with high beta and non-inductive full current drive, with high bootstrap current fraction, and demonstrate the plasma applicability of reduced-activation material for a plasma of break-even class relevant to the reactor plasma. Basic design of JT-60SC has been completed and the detailed design is under way. The engineering design for main components of JT-60SC is described.","PeriodicalId":44192,"journal":{"name":"NINETEENTH CENTURY MUSIC","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2002-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82521091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"艺术学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2002-11-07DOI: 10.1109/FUSION.2002.1027647
T. Matsukawa, Masanori Shioyama, J. Nomura, C. Neumeyer, S. Tsuji-Iio, R. Shimada
To supply high DC current to a single turn toroidal field coil of a spherical torus machine, it is an important engineering aspect that the operational losses should be minimized for the power supply system. As a switching element of an AC/DC converter, instead of a thyristor or diode, a power-MOSFET is a desirable component to be applied to a high current power supply system. The lowered resistance of parallel connected and pre-cooled power-MOSFET elements makes it possible to reduce the AC/DC converter power supply system losses. To output high DC current in one direction, the synchronous rectifier type AC/DC converter with parallel connected power-MOSFET elements is proposed as the power supply system for single turn toroidal field coil.
{"title":"Synchronous rectifier using power-MOSFET for high current AC/DC converter system","authors":"T. Matsukawa, Masanori Shioyama, J. Nomura, C. Neumeyer, S. Tsuji-Iio, R. Shimada","doi":"10.1109/FUSION.2002.1027647","DOIUrl":"https://doi.org/10.1109/FUSION.2002.1027647","url":null,"abstract":"To supply high DC current to a single turn toroidal field coil of a spherical torus machine, it is an important engineering aspect that the operational losses should be minimized for the power supply system. As a switching element of an AC/DC converter, instead of a thyristor or diode, a power-MOSFET is a desirable component to be applied to a high current power supply system. The lowered resistance of parallel connected and pre-cooled power-MOSFET elements makes it possible to reduce the AC/DC converter power supply system losses. To output high DC current in one direction, the synchronous rectifier type AC/DC converter with parallel connected power-MOSFET elements is proposed as the power supply system for single turn toroidal field coil.","PeriodicalId":44192,"journal":{"name":"NINETEENTH CENTURY MUSIC","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2002-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88121266","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"艺术学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2002-11-07DOI: 10.1109/FUSION.2002.1027679
M. Riva, D. Mazon, R. Felton, X. Litaudon, G. Tresset, A. Becoulet, J. Chareau, S. Dalley, S. Dorling, E. Joffrin, D. Moreau, M. Lennholm
Recently a local criterion characterising the emergence and space-time evolution of internal transport barriers (ITB) has been proposed and extensively validated on the large JET database. It was shown that a dimensionless local parameter, /spl rho//spl dot/(T/sub e/) =/spl rho//sub s//L(T/sub e/) characterises with a low computational cost the typical ITB features such as the emergence time, location, collapse time and dynamics [/spl rho//sub s/ is the local Larmor radius and L(T/sub e/) is the temperature gradient scale length L(T/sub e/)=-T/sub e//(/spl part/T/sub e///spl part/R)]. We report on the recent implementation of the calculation of the ITB criterion together with the associated feedback algorithms in the real time system of JET. The system purpose is to acquire all the analogue channels of the high space resolution electron temperature ECE diagnostic (heterodyne radiometer) and to calculate in real time the relevant ITB parameters which am used for the control: the maximum value of the dimensionless local temperature gradient, the ITB radius and width, the core and volume averaged electron temperature.
{"title":"Towards real time control of the internal transport barriers on JET","authors":"M. Riva, D. Mazon, R. Felton, X. Litaudon, G. Tresset, A. Becoulet, J. Chareau, S. Dalley, S. Dorling, E. Joffrin, D. Moreau, M. Lennholm","doi":"10.1109/FUSION.2002.1027679","DOIUrl":"https://doi.org/10.1109/FUSION.2002.1027679","url":null,"abstract":"Recently a local criterion characterising the emergence and space-time evolution of internal transport barriers (ITB) has been proposed and extensively validated on the large JET database. It was shown that a dimensionless local parameter, /spl rho//spl dot/(T/sub e/) =/spl rho//sub s//L(T/sub e/) characterises with a low computational cost the typical ITB features such as the emergence time, location, collapse time and dynamics [/spl rho//sub s/ is the local Larmor radius and L(T/sub e/) is the temperature gradient scale length L(T/sub e/)=-T/sub e//(/spl part/T/sub e///spl part/R)]. We report on the recent implementation of the calculation of the ITB criterion together with the associated feedback algorithms in the real time system of JET. The system purpose is to acquire all the analogue channels of the high space resolution electron temperature ECE diagnostic (heterodyne radiometer) and to calculate in real time the relevant ITB parameters which am used for the control: the maximum value of the dimensionless local temperature gradient, the ITB radius and width, the core and volume averaged electron temperature.","PeriodicalId":44192,"journal":{"name":"NINETEENTH CENTURY MUSIC","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2002-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89776912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"艺术学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2002-11-07DOI: 10.1109/FUSION.2002.1027633
D. Terry, W. Burke, M. Grimes, D. Gwinn, J. Irby, N. Kambouchev, R. Parker, P. Woskov
A 3 MW (upgradeable to 4 MW) 4.6 GHz Lower Hybrid Current Drive (LHCD) system is being implemented on Alcator C-Mod to control and sustain current profile evolution. The LHCD low-power microwave and active control system, using fast vector modulators, will provide a phase and amplitude controlled driver for each of twelve 4.6 GHz, 250 kW klystrons. Resulting phase and power outputs of each klystron will be monitored by I-Q detectors and made available for closed-loop control of the klystron phase and amplitude during plasma shots. Synchronized digital controllers will be implemented for each control loop and operation will be coordinated with external fast protection circuitry provided in the LHCD transmitter and coupler protection systems.
{"title":"The Alcator C-Mod lower hybrid current drive experiment low power microwave and active control system","authors":"D. Terry, W. Burke, M. Grimes, D. Gwinn, J. Irby, N. Kambouchev, R. Parker, P. Woskov","doi":"10.1109/FUSION.2002.1027633","DOIUrl":"https://doi.org/10.1109/FUSION.2002.1027633","url":null,"abstract":"A 3 MW (upgradeable to 4 MW) 4.6 GHz Lower Hybrid Current Drive (LHCD) system is being implemented on Alcator C-Mod to control and sustain current profile evolution. The LHCD low-power microwave and active control system, using fast vector modulators, will provide a phase and amplitude controlled driver for each of twelve 4.6 GHz, 250 kW klystrons. Resulting phase and power outputs of each klystron will be monitored by I-Q detectors and made available for closed-loop control of the klystron phase and amplitude during plasma shots. Synchronized digital controllers will be implemented for each control loop and operation will be coordinated with external fast protection circuitry provided in the LHCD transmitter and coupler protection systems.","PeriodicalId":44192,"journal":{"name":"NINETEENTH CENTURY MUSIC","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2002-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86565899","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"艺术学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2002-11-07DOI: 10.1109/FUSION.2002.1027698
P. Heitzenroeder, R. Thorne
The FIRE project is being pursued as a possible option for the next step in the US magnetic fusion energy program. Its goal is to develop a compact, high field, highly shaped tokamak with the following parameters: major radius, R, of 2.14 m: minor radius, a, of 0.595 m.: a toroidal field on axis of 10 T; a plasma current of 7.7 MA, a flat top time of approximately 20 s, and fusion power of 150 MW. FIRE utilizes liquid nitrogen pre-cooled copper TF and PF magnets. An important goal is a project cost of approximately $1.2B. Initial cost estimates have been produced which indicate FIRE can achieve this cost goal. More detailed cost estimates are planned in FY 02. This paper will give an overview of FIRE's design. discuss the most significant design choices and the background for these choices, and summarizes FIRE's cost estimates and R&D plans.
{"title":"Engineering status and plans for the Fusion Ignition Research Experiment (FIRE)","authors":"P. Heitzenroeder, R. Thorne","doi":"10.1109/FUSION.2002.1027698","DOIUrl":"https://doi.org/10.1109/FUSION.2002.1027698","url":null,"abstract":"The FIRE project is being pursued as a possible option for the next step in the US magnetic fusion energy program. Its goal is to develop a compact, high field, highly shaped tokamak with the following parameters: major radius, R, of 2.14 m: minor radius, a, of 0.595 m.: a toroidal field on axis of 10 T; a plasma current of 7.7 MA, a flat top time of approximately 20 s, and fusion power of 150 MW. FIRE utilizes liquid nitrogen pre-cooled copper TF and PF magnets. An important goal is a project cost of approximately $1.2B. Initial cost estimates have been produced which indicate FIRE can achieve this cost goal. More detailed cost estimates are planned in FY 02. This paper will give an overview of FIRE's design. discuss the most significant design choices and the background for these choices, and summarizes FIRE's cost estimates and R&D plans.","PeriodicalId":44192,"journal":{"name":"NINETEENTH CENTURY MUSIC","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2002-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81713759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"艺术学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2002-11-07DOI: 10.1109/FUSION.2002.1027667
K. Katayama, M. Nishikawa, T. Takeishi
SiC (silicon carbide) has been considered as one of the primary candidate materials for a first wall component in a future fusion reactor because it has been claimed that SiC has excellent high temperature properties and low activation. However, the behavior of tritium on SiC has not been discussed yet. In this study, the tritium trapping capacity on the surface of SiC is experimentally obtained as about 10/sup 10/ Bq/m/sup 2/ at the temperature range of 298K- 1073K in consideration of the static system effect. It is also observed that tritium is trapped to the surface through hydrogen isotope exchange reaction. The isotope exchange reaction rate between tritiated water in a gas phase and hydrogen on the surface is quantified at the temperature of 298K, 773K, 973K in consideration of the kinetic system effect by the numerical curve fitting method applying the serial reactor model. The reaction rate is observed to be constant at 3.48 /spl times/ 10/sup -5/ m/s. The comparison of tritium properties of SiC with that of graphite or stainless steel is also discussed.
{"title":"Tritium behavior on SiC","authors":"K. Katayama, M. Nishikawa, T. Takeishi","doi":"10.1109/FUSION.2002.1027667","DOIUrl":"https://doi.org/10.1109/FUSION.2002.1027667","url":null,"abstract":"SiC (silicon carbide) has been considered as one of the primary candidate materials for a first wall component in a future fusion reactor because it has been claimed that SiC has excellent high temperature properties and low activation. However, the behavior of tritium on SiC has not been discussed yet. In this study, the tritium trapping capacity on the surface of SiC is experimentally obtained as about 10/sup 10/ Bq/m/sup 2/ at the temperature range of 298K- 1073K in consideration of the static system effect. It is also observed that tritium is trapped to the surface through hydrogen isotope exchange reaction. The isotope exchange reaction rate between tritiated water in a gas phase and hydrogen on the surface is quantified at the temperature of 298K, 773K, 973K in consideration of the kinetic system effect by the numerical curve fitting method applying the serial reactor model. The reaction rate is observed to be constant at 3.48 /spl times/ 10/sup -5/ m/s. The comparison of tritium properties of SiC with that of graphite or stainless steel is also discussed.","PeriodicalId":44192,"journal":{"name":"NINETEENTH CENTURY MUSIC","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2002-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79163064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"艺术学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2002-11-07DOI: 10.1109/FUSION.2002.1027696
B. Nelson, L. Berry, A. Brooks, T. Brown, M. Cole, J. Chrznowski, F. Dahgren, H. Fan, P. Fogarty, P. Goranson, P. Heitzenroeder, S. Hirshman, G. Jones, J. Lyon, H. Neilson, D. Strickler, W. Reiersen, D. Williamson
The design status of the stellarator core for the National Compact Stellarator Experiment (NCSX) is presented. The purpose, configuration, and possible manufacturing and assembly techniques of the various components of the core are described.
{"title":"Design of the National Compact Stellarator Experiment (NCSX) core","authors":"B. Nelson, L. Berry, A. Brooks, T. Brown, M. Cole, J. Chrznowski, F. Dahgren, H. Fan, P. Fogarty, P. Goranson, P. Heitzenroeder, S. Hirshman, G. Jones, J. Lyon, H. Neilson, D. Strickler, W. Reiersen, D. Williamson","doi":"10.1109/FUSION.2002.1027696","DOIUrl":"https://doi.org/10.1109/FUSION.2002.1027696","url":null,"abstract":"The design status of the stellarator core for the National Compact Stellarator Experiment (NCSX) is presented. The purpose, configuration, and possible manufacturing and assembly techniques of the various components of the core are described.","PeriodicalId":44192,"journal":{"name":"NINETEENTH CENTURY MUSIC","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2002-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80652304","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"艺术学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2002-11-07DOI: 10.1109/FUSION.2002.1027634
P. Titus
ANSYS has been used to compute eddy current loads in C-Mod antenna components due to a disruption. The antennas are on the outboard mid-plane, away from the direct involvement with halo currents, which characterize loading in the inner divertor and wall. Only inductively driven currents are computed. A rather complex but manageable electromagnetic model is used. Three of the antennas used in C-Mod were analyzed, Lower Hybrid, ICRH, and MHD antennas. The goal of these simulations was principally to quantify upper bound disruption loads.
{"title":"Disruption load calculations using ANSYS transient electromagnetic simulations for the Alcator C-Mod antennas","authors":"P. Titus","doi":"10.1109/FUSION.2002.1027634","DOIUrl":"https://doi.org/10.1109/FUSION.2002.1027634","url":null,"abstract":"ANSYS has been used to compute eddy current loads in C-Mod antenna components due to a disruption. The antennas are on the outboard mid-plane, away from the direct involvement with halo currents, which characterize loading in the inner divertor and wall. Only inductively driven currents are computed. A rather complex but manageable electromagnetic model is used. Three of the antennas used in C-Mod were analyzed, Lower Hybrid, ICRH, and MHD antennas. The goal of these simulations was principally to quantify upper bound disruption loads.","PeriodicalId":44192,"journal":{"name":"NINETEENTH CENTURY MUSIC","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2002-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74041809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"艺术学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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