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Study of serviceability of superconducting wires at 50-Hz frequency
A stationary equation for thermal conductivity is solved for a multifilamentary superconducting wire in the AC external magnetic field with an in-phase varying transport current of the amplitude j/sub m/
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| Published in: | IEEE transactions on magnetics 1989-03, Vol.25 (2), p.2116-2118 |
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| Main Authors: | , , , , |
| Format: | Article |
| Language: | English |
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| Online Access: | Get full text |
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| cited_by | cdi_FETCH-LOGICAL-c336t-bf6230e47bb48072884e8996bd83907b2716af9f3b598d49297e686c87dcf7d13 |
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| cites | cdi_FETCH-LOGICAL-c336t-bf6230e47bb48072884e8996bd83907b2716af9f3b598d49297e686c87dcf7d13 |
| container_end_page | 2118 |
| container_issue | 2 |
| container_start_page | 2116 |
| container_title | IEEE transactions on magnetics |
| container_volume | 25 |
| creator | Aksenova, E.N. Aksenov, P.V. Kruglov, V.S. Zelensky, G.K. Nikulenkov, E.V. |
| description | A stationary equation for thermal conductivity is solved for a multifilamentary superconducting wire in the AC external magnetic field with an in-phase varying transport current of the amplitude j/sub m/ |
| doi_str_mv | 10.1109/20.92726 |
| format | article |
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Taking into account the temperature distribution over the wire cross section and the current-voltage characteristic exponential smearing over the temperature T/sub 0/ and current j/sub 0/ the condition for determining the wire serviceability in the dynamic regime, T(0)-T/sub b/<or=T/sub 0/(j/sub c/-j/sub m/) j/sub 0/, is suggested. T(0) is the wire core temperature, T/sub b/ is the bath temperature, and j/sub c/ is the current critical density. It has been confirmed experimentally on microsolenoids operating at 50 Hz that the main characteristic of the wire serviceability in the dynamic regime is a magnetic field amplitude which can be estimated from the proposed relation for any given frequency, provided that j/sub m/<<j/sub c/. The calculated and experimentally observed serviceability ranges of investigated Nb-Ti, Nb/sub 3/Sn wires, and in situ SC agree with accuracy no worse than 30%.</description><identifier>ISSN: 0018-9464</identifier><identifier>EISSN: 1941-0069</identifier><identifier>DOI: 10.1109/20.92726</identifier><identifier>CODEN: IEMGAQ</identifier><language>eng</language><publisher>IEEE</publisher><subject>Amplitude estimation ; Current distribution ; Current-voltage characteristics ; Equations ; Frequency estimation ; Magnetic fields ; Niobium ; Superconducting filaments and wires ; Temperature distribution ; Thermal conductivity</subject><ispartof>IEEE transactions on magnetics, 1989-03, Vol.25 (2), p.2116-2118</ispartof><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c336t-bf6230e47bb48072884e8996bd83907b2716af9f3b598d49297e686c87dcf7d13</citedby><cites>FETCH-LOGICAL-c336t-bf6230e47bb48072884e8996bd83907b2716af9f3b598d49297e686c87dcf7d13</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/92726$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,780,784,27922,27923,54794</link.rule.ids></links><search><creatorcontrib>Aksenova, E.N.</creatorcontrib><creatorcontrib>Aksenov, P.V.</creatorcontrib><creatorcontrib>Kruglov, V.S.</creatorcontrib><creatorcontrib>Zelensky, G.K.</creatorcontrib><creatorcontrib>Nikulenkov, E.V.</creatorcontrib><title>Study of serviceability of superconducting wires at 50-Hz frequency</title><title>IEEE transactions on magnetics</title><addtitle>TMAG</addtitle><description>A stationary equation for thermal conductivity is solved for a multifilamentary superconducting wire in the AC external magnetic field with an in-phase varying transport current of the amplitude j/sub m/<<j/sub c/ on the assumption of a uniform current distribution between the filaments. Taking into account the temperature distribution over the wire cross section and the current-voltage characteristic exponential smearing over the temperature T/sub 0/ and current j/sub 0/ the condition for determining the wire serviceability in the dynamic regime, T(0)-T/sub b/<or=T/sub 0/(j/sub c/-j/sub m/) j/sub 0/, is suggested. T(0) is the wire core temperature, T/sub b/ is the bath temperature, and j/sub c/ is the current critical density. It has been confirmed experimentally on microsolenoids operating at 50 Hz that the main characteristic of the wire serviceability in the dynamic regime is a magnetic field amplitude which can be estimated from the proposed relation for any given frequency, provided that j/sub m/<<j/sub c/. The calculated and experimentally observed serviceability ranges of investigated Nb-Ti, Nb/sub 3/Sn wires, and in situ SC agree with accuracy no worse than 30%.</description><subject>Amplitude estimation</subject><subject>Current distribution</subject><subject>Current-voltage characteristics</subject><subject>Equations</subject><subject>Frequency estimation</subject><subject>Magnetic fields</subject><subject>Niobium</subject><subject>Superconducting filaments and wires</subject><subject>Temperature distribution</subject><subject>Thermal conductivity</subject><issn>0018-9464</issn><issn>1941-0069</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1989</creationdate><recordtype>article</recordtype><recordid>eNqN0E1LxDAQBuAgCq6r4NVbT-Kl6yTN51EWdYUFD-o5tOlEIt12TVpl_fVWK171NMzMwwy8hJxSWFAK5pLBwjDF5B6ZUcNpDiDNPpkBUJ0bLvkhOUrpZWy5oDAjy4d-qHdZ57OE8S04LKvQhH6aDFuMrmvrwfWhfc7eQ8SUlX0mIF99ZD7i64Ct2x2TA182CU9-6pw83Vw_Llf5-v72bnm1zl1RyD6vvGQFIFdVxTUopjVHbYysal0YUBVTVJbe-KISRtfcMKNQaum0qp1XNS3m5Hy6u43d-Dn1dhOSw6YpW-yGZJkBAUqKv6GWVAn1Dyi4lIU0I7yYoItdShG93cawKePOUrBfuVsG9jv3kZ5NNCDiL5t2n7wte20</recordid><startdate>19890301</startdate><enddate>19890301</enddate><creator>Aksenova, E.N.</creator><creator>Aksenov, P.V.</creator><creator>Kruglov, V.S.</creator><creator>Zelensky, G.K.</creator><creator>Nikulenkov, E.V.</creator><general>IEEE</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7U5</scope><scope>8FD</scope><scope>L7M</scope><scope>7SP</scope></search><sort><creationdate>19890301</creationdate><title>Study of serviceability of superconducting wires at 50-Hz frequency</title><author>Aksenova, E.N. ; Aksenov, P.V. ; Kruglov, V.S. ; Zelensky, G.K. ; Nikulenkov, E.V.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c336t-bf6230e47bb48072884e8996bd83907b2716af9f3b598d49297e686c87dcf7d13</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1989</creationdate><topic>Amplitude estimation</topic><topic>Current distribution</topic><topic>Current-voltage characteristics</topic><topic>Equations</topic><topic>Frequency estimation</topic><topic>Magnetic fields</topic><topic>Niobium</topic><topic>Superconducting filaments and wires</topic><topic>Temperature distribution</topic><topic>Thermal conductivity</topic><toplevel>online_resources</toplevel><creatorcontrib>Aksenova, E.N.</creatorcontrib><creatorcontrib>Aksenov, P.V.</creatorcontrib><creatorcontrib>Kruglov, V.S.</creatorcontrib><creatorcontrib>Zelensky, G.K.</creatorcontrib><creatorcontrib>Nikulenkov, E.V.</creatorcontrib><collection>CrossRef</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Electronics & Communications Abstracts</collection><jtitle>IEEE transactions on magnetics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Aksenova, E.N.</au><au>Aksenov, P.V.</au><au>Kruglov, V.S.</au><au>Zelensky, G.K.</au><au>Nikulenkov, E.V.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Study of serviceability of superconducting wires at 50-Hz frequency</atitle><jtitle>IEEE transactions on magnetics</jtitle><stitle>TMAG</stitle><date>1989-03-01</date><risdate>1989</risdate><volume>25</volume><issue>2</issue><spage>2116</spage><epage>2118</epage><pages>2116-2118</pages><issn>0018-9464</issn><eissn>1941-0069</eissn><coden>IEMGAQ</coden><abstract>A stationary equation for thermal conductivity is solved for a multifilamentary superconducting wire in the AC external magnetic field with an in-phase varying transport current of the amplitude j/sub m/<<j/sub c/ on the assumption of a uniform current distribution between the filaments. Taking into account the temperature distribution over the wire cross section and the current-voltage characteristic exponential smearing over the temperature T/sub 0/ and current j/sub 0/ the condition for determining the wire serviceability in the dynamic regime, T(0)-T/sub b/<or=T/sub 0/(j/sub c/-j/sub m/) j/sub 0/, is suggested. T(0) is the wire core temperature, T/sub b/ is the bath temperature, and j/sub c/ is the current critical density. It has been confirmed experimentally on microsolenoids operating at 50 Hz that the main characteristic of the wire serviceability in the dynamic regime is a magnetic field amplitude which can be estimated from the proposed relation for any given frequency, provided that j/sub m/<<j/sub c/. The calculated and experimentally observed serviceability ranges of investigated Nb-Ti, Nb/sub 3/Sn wires, and in situ SC agree with accuracy no worse than 30%.</abstract><pub>IEEE</pub><doi>10.1109/20.92726</doi><tpages>3</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0018-9464 |
| ispartof | IEEE transactions on magnetics, 1989-03, Vol.25 (2), p.2116-2118 |
| issn | 0018-9464 1941-0069 |
| language | eng |
| recordid | cdi_crossref_primary_10_1109_20_92726 |
| source | IEEE Electronic Library (IEL) Journals |
| subjects | Amplitude estimation Current distribution Current-voltage characteristics Equations Frequency estimation Magnetic fields Niobium Superconducting filaments and wires Temperature distribution Thermal conductivity |
| title | Study of serviceability of superconducting wires at 50-Hz frequency |
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