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Studies on helium flow in experimental loops with different impedances operated with fountain effect pumps.

Author(s) : KASTHURIRENGAN S., HOFMANN A.

Type of article: Article

Summary

An experimental flow loop with helium II flow driven by fountain effect pumps is studied with respect to operation at different flow impedances and with thermal loads applied at different positions. The measured values of temperature, flow rate and pressure drop are compared with calculations resulting from a simplified model which assumes ideal performance of the porous plug and of the heat exchangers and which does not take into account Gorter-Mellink conduction. The main features of the loop are shown to be well described by this model. Refined calculations are only required for predicting the temperature distribution in some discrete regions of the loop.

Details

  • Original title: Studies on helium flow in experimental loops with different impedances operated with fountain effect pumps.
  • Record ID : 1994-3343
  • Languages: English
  • Source: Cryogenics - vol. 33 - n. 12
  • Publication date: 1993/12

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