Transient heat transfer to a closed volume of helium I and its influence on superconductor stability.

Author(s) : SCHMIDT C.

Type of article: Article

Summary

The case of a small, closed helium volume is the relevant boundary condition of cable-in-conduit conductors, which are often preferred for the construction of big magnets. In a small helium volume the transient heat input leads to a rapid rise in pressure which drastically reduces the heat removal capability of the coolant. Above the critical pressure of 2.3 bar the transient heat transfer is governed by thermal diffusion. The article describes some experimental work and theoretical approaches to this problem. The cases of liquid and supercritical helium are considered.

Details

  • Original title: Transient heat transfer to a closed volume of helium I and its influence on superconductor stability.
  • Record ID : 1993-0049
  • Languages: English
  • Source: Cryogenics - vol. 31 - n. 7
  • Publication date: 1991/07

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