Effects of the Heater Winding on the Stability Tests of the Superconductor

Autor:	Harehiko Nomura, Toshitada Onishi, S. Fuchino, Katsuyuki Kaiho, Seiji Sekine, Kazuaki Arai, Toshiyuki Aiba, Itaru Ishii, Kazuhiro Kajikawa, Hiroshi Tateishi, Mikio Kumagai, Naotake Natori, N. Tamada, Noboru Higuchi
Rok vydání:	1993
Předmět:	Thermal equilibrium Vacuum insulated panel Materials science Thermal bridge Thermal insulation business.industry Condensed Matter::Superconductivity Heat generation Multi-layer insulation Heat transfer Composite material business Electrical conductor
Zdroj:	TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan). 28:639-646
ISSN:	1880-0408 0389-2441
Popis:	In order to measure the minimum propagating current of the composite superconductor, heater wire is usually wound around the superconductor to heat it up and make a small normal zone. Usually this heater wire is thermally insulated from helium by epoxy resin and these thermal insulation seems to affect on the steady state stability of the superconductor. A simple graphical scheme have been presented for incorporating heat transfer and heat generation characteristics into calculation of the stability of superconductive composite conductors with local thermal insulation, modifying the equal area method presented by Maddock et al. The effects of the local thermal insulation on the steady state stability of composite superconductors are discussed by this graphical scheme. It is shown that the minimum propagating current of the composite superconductor with the local thermal insulation is the same as that of the conductor without the thermal insulation but there are the thermal equilibrium current below the minimum propagating current.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d864e1603516c4ae54f0d07348f5bf4e https://doi.org/10.2221/jcsj.28.639 Zobrazit plný text záznamu