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Self-driven cooling loop for a large superconducting magnet in space.

Author(s) : MORD A. J., SNYDER H. A.

Type of article: Article

Summary

Pressurized cooling loops in which superfluid helium circulation is driven by the heat being removed have been previously demonstrated in laboratory tests. A simpler and lighter version which eliminates a heat exchanger by mixing the returning fluid directly with the superfluid helium bath was analysed. A carefully designed flow restriction must be used to prevent boiling in this low-pressure system. A candidate design for Astromag is shown that can keep the magnet below 2.0 K during magnet charging. This gives a greater margin against accidental quench than approaches that allow the coolant to warm above the lambda point. A detailed analysis of one candidate design is presented.

Details

  • Original title: Self-driven cooling loop for a large superconducting magnet in space.
  • Record ID : 1993-1836
  • Languages: English
  • Source: Cryogenics - vol. 32 - n. 2
  • Publication date: 1992

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