Temperature characteristic of rotor of HTS synchronous rotating machine cooled by solid nitrogen

Young Sik Jo, Young Kil Kwon, Myung Hwan Sohn, Kang Sik Ryu, Jung Pyo Hong, Ju Lee

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

This paper deals with cryogen, which is used as solid nitrogen (SN2) to keep the operating temperature of high temperature superconducting (HTS) synchronous rotating machine. To solidify liquid nitrogen, liquid helium (LHe) passed into the heat exchanger and cools its own temperature. Two types of heat exchangers were designed and fabricated for making the SN2, and the temperature characteristics of both case was compared. The rotor of HTS synchronous rotating machine was cooled by latent heat of SN2 and it was kept under 40 K for 2 h and 30 min without the additional supplement of LHe.

Original languageEnglish
Pages (from-to)1535-1538
Number of pages4
JournalPhysica C: Superconductivity and its applications
Volume372-376
Issue numberPART 3
DOIs
StatePublished - 2002 Aug 1

Keywords

  • Cryogen
  • HTS rotating machine
  • Solid nitrogen

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