Effect of the Pitch Modulation of Helical Coils on the Core Plasma Performance of the LHD-Type Helical Fusion Reactor
The effect of the pitch modulation of the helical coils on the core plasma performance of the LHD-type helical fusion reactor has been examined. The analysis of the MHD stability and neoclassical transport for the pitch modulation α = 0.0 and 0.1 has been conducted based on the finite-beta equilibri...
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| Veröffentlicht in: | Plasma and Fusion Research 2021/06/18, Vol.16, pp.1405085-1405085 |
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| container_title | Plasma and Fusion Research |
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| creator | GOTO, Takuya ICHIGUCHI, Katsuji TAMURA, Hitoshi MIYAZAWA, Junichi SATAKE, Shinsuke YAMAGUCHI, Hiroyuki YANAGI, Nagato Group, the FFHR Design |
| description | The effect of the pitch modulation of the helical coils on the core plasma performance of the LHD-type helical fusion reactor has been examined. The analysis of the MHD stability and neoclassical transport for the pitch modulation α = 0.0 and 0.1 has been conducted based on the finite-beta equilibrium calculated by the HINT code. It was found that the MHD stability is clearly improved without deteriorating the energy transport property by changing the pitch modulation α from 0.1 to 0.0. The reachable operation region expands to the higher density and the expected fusion gain can increase from ∼10 to ∼20. Because the change of the pitch modulation α from 0.1 to 0.0 requires only a slight change in the shape of the helical coils, the engineering design including the maintenance method that has been examined for the reactor with α = 0.1 can be applied without a major modification. |
| doi_str_mv | 10.1585/pfr.16.1405085 |
| format | Article |
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The analysis of the MHD stability and neoclassical transport for the pitch modulation α = 0.0 and 0.1 has been conducted based on the finite-beta equilibrium calculated by the HINT code. It was found that the MHD stability is clearly improved without deteriorating the energy transport property by changing the pitch modulation α from 0.1 to 0.0. The reachable operation region expands to the higher density and the expected fusion gain can increase from ∼10 to ∼20. Because the change of the pitch modulation α from 0.1 to 0.0 requires only a slight change in the shape of the helical coils, the engineering design including the maintenance method that has been examined for the reactor with α = 0.1 can be applied without a major modification.</description><identifier>ISSN: 1880-6821</identifier><identifier>EISSN: 1880-6821</identifier><identifier>DOI: 10.1585/pfr.16.1405085</identifier><language>eng</language><publisher>Nagoya: The Japan Society of Plasma Science and Nuclear Fusion Research</publisher><subject>Coils ; Design engineering ; Fusion reactors ; LHD-type helical reactor ; MHD stability ; Modulation ; neoclassical transport ; operation region ; pitch modulation ; Stability analysis ; Transport properties</subject><ispartof>Plasma and Fusion Research, 2021/06/18, Vol.16, pp.1405085-1405085</ispartof><rights>2021 by The Japan Society of Plasma Science and Nuclear Fusion Research</rights><rights>Copyright Japan Science and Technology Agency 2021</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c576t-9ea235fe03e4d8e86516419777018027271db7a3eb418ed0088c664a2ccf173e3</citedby><cites>FETCH-LOGICAL-c576t-9ea235fe03e4d8e86516419777018027271db7a3eb418ed0088c664a2ccf173e3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,777,781,1877,27905,27906</link.rule.ids></links><search><creatorcontrib>GOTO, Takuya</creatorcontrib><creatorcontrib>ICHIGUCHI, Katsuji</creatorcontrib><creatorcontrib>TAMURA, Hitoshi</creatorcontrib><creatorcontrib>MIYAZAWA, Junichi</creatorcontrib><creatorcontrib>SATAKE, Shinsuke</creatorcontrib><creatorcontrib>YAMAGUCHI, Hiroyuki</creatorcontrib><creatorcontrib>YANAGI, Nagato</creatorcontrib><creatorcontrib>Group, the FFHR Design</creatorcontrib><creatorcontrib>the FFHR Design Group</creatorcontrib><title>Effect of the Pitch Modulation of Helical Coils on the Core Plasma Performance of the LHD-Type Helical Fusion Reactor</title><title>Plasma and Fusion Research</title><addtitle>Plasma and Fusion Research</addtitle><description>The effect of the pitch modulation of the helical coils on the core plasma performance of the LHD-type helical fusion reactor has been examined. The analysis of the MHD stability and neoclassical transport for the pitch modulation α = 0.0 and 0.1 has been conducted based on the finite-beta equilibrium calculated by the HINT code. It was found that the MHD stability is clearly improved without deteriorating the energy transport property by changing the pitch modulation α from 0.1 to 0.0. The reachable operation region expands to the higher density and the expected fusion gain can increase from ∼10 to ∼20. Because the change of the pitch modulation α from 0.1 to 0.0 requires only a slight change in the shape of the helical coils, the engineering design including the maintenance method that has been examined for the reactor with α = 0.1 can be applied without a major modification.</description><subject>Coils</subject><subject>Design engineering</subject><subject>Fusion reactors</subject><subject>LHD-type helical reactor</subject><subject>MHD stability</subject><subject>Modulation</subject><subject>neoclassical transport</subject><subject>operation region</subject><subject>pitch modulation</subject><subject>Stability analysis</subject><subject>Transport properties</subject><issn>1880-6821</issn><issn>1880-6821</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNpNkEtPwzAQhC0EEqVw5RyJc4KdxI8eq9BSpCIqVM6W66xpqjQOtnPovydRH-ppV7vfzK4GoWeCE0IFfW2NSwhLSI4pFvQGjYgQOGYiJbdX_T168H6HMZtQwkaomxkDOkTWRGEL0aoKeht92rKrVahsM8wXUFda1VFhq9pH_WwAC-t6ulZ-r6IVOGPdXjUazj7LxVu8PrRwEc87P9h9g9LBukd0Z1Tt4elUx-hnPlsXi3j59f5RTJexppyFeAIqzagBnEFeChCsfzknE845JgKnPOWk3HCVwSYnAkqMhdCM5SrV2hCeQTZGL0ff1tm_DnyQO9u5pj8pU05zhjOO855KjpR21nsHRrau2it3kATLIVrZRysJk6doe8H0KNj5oH7hgisXKl3DGcdXmstOb5WT0GT_RhOCSw</recordid><startdate>20210618</startdate><enddate>20210618</enddate><creator>GOTO, Takuya</creator><creator>ICHIGUCHI, Katsuji</creator><creator>TAMURA, Hitoshi</creator><creator>MIYAZAWA, Junichi</creator><creator>SATAKE, Shinsuke</creator><creator>YAMAGUCHI, Hiroyuki</creator><creator>YANAGI, Nagato</creator><creator>Group, the FFHR Design</creator><general>The Japan Society of Plasma Science and Nuclear Fusion Research</general><general>Japan Science and Technology Agency</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7TB</scope><scope>7U5</scope><scope>8FD</scope><scope>FR3</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20210618</creationdate><title>Effect of the Pitch Modulation of Helical Coils on the Core Plasma Performance of the LHD-Type Helical Fusion Reactor</title><author>GOTO, Takuya ; ICHIGUCHI, Katsuji ; TAMURA, Hitoshi ; MIYAZAWA, Junichi ; SATAKE, Shinsuke ; YAMAGUCHI, Hiroyuki ; YANAGI, Nagato ; Group, the FFHR Design</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c576t-9ea235fe03e4d8e86516419777018027271db7a3eb418ed0088c664a2ccf173e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Coils</topic><topic>Design engineering</topic><topic>Fusion reactors</topic><topic>LHD-type helical reactor</topic><topic>MHD stability</topic><topic>Modulation</topic><topic>neoclassical transport</topic><topic>operation region</topic><topic>pitch modulation</topic><topic>Stability analysis</topic><topic>Transport properties</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>GOTO, Takuya</creatorcontrib><creatorcontrib>ICHIGUCHI, Katsuji</creatorcontrib><creatorcontrib>TAMURA, Hitoshi</creatorcontrib><creatorcontrib>MIYAZAWA, Junichi</creatorcontrib><creatorcontrib>SATAKE, Shinsuke</creatorcontrib><creatorcontrib>YAMAGUCHI, Hiroyuki</creatorcontrib><creatorcontrib>YANAGI, Nagato</creatorcontrib><creatorcontrib>Group, the FFHR Design</creatorcontrib><creatorcontrib>the FFHR Design Group</creatorcontrib><collection>CrossRef</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Plasma and Fusion Research</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>GOTO, Takuya</au><au>ICHIGUCHI, Katsuji</au><au>TAMURA, Hitoshi</au><au>MIYAZAWA, Junichi</au><au>SATAKE, Shinsuke</au><au>YAMAGUCHI, Hiroyuki</au><au>YANAGI, Nagato</au><au>Group, the FFHR Design</au><aucorp>the FFHR Design Group</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of the Pitch Modulation of Helical Coils on the Core Plasma Performance of the LHD-Type Helical Fusion Reactor</atitle><jtitle>Plasma and Fusion Research</jtitle><addtitle>Plasma and Fusion Research</addtitle><date>2021-06-18</date><risdate>2021</risdate><volume>16</volume><spage>1405085</spage><epage>1405085</epage><pages>1405085-1405085</pages><issn>1880-6821</issn><eissn>1880-6821</eissn><abstract>The effect of the pitch modulation of the helical coils on the core plasma performance of the LHD-type helical fusion reactor has been examined. The analysis of the MHD stability and neoclassical transport for the pitch modulation α = 0.0 and 0.1 has been conducted based on the finite-beta equilibrium calculated by the HINT code. It was found that the MHD stability is clearly improved without deteriorating the energy transport property by changing the pitch modulation α from 0.1 to 0.0. The reachable operation region expands to the higher density and the expected fusion gain can increase from ∼10 to ∼20. Because the change of the pitch modulation α from 0.1 to 0.0 requires only a slight change in the shape of the helical coils, the engineering design including the maintenance method that has been examined for the reactor with α = 0.1 can be applied without a major modification.</abstract><cop>Nagoya</cop><pub>The Japan Society of Plasma Science and Nuclear Fusion Research</pub><doi>10.1585/pfr.16.1405085</doi><tpages>1</tpages><oa>free_for_read</oa></addata></record> |
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| source | Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; J-STAGE (Japan Science & Technology Information Aggregator, Electronic) Freely Available Titles - Japanese |
| subjects | Coils Design engineering Fusion reactors LHD-type helical reactor MHD stability Modulation neoclassical transport operation region pitch modulation Stability analysis Transport properties |
| title | Effect of the Pitch Modulation of Helical Coils on the Core Plasma Performance of the LHD-Type Helical Fusion Reactor |
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