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Oxygen thermosiphon reboiler-condenser thermal-hydraulics.

Author(s) : CLARKE R. H., ANDRECOVICH M. J.

Summary

Practical predictions of boiling and condensing coefficients have been obtained with a variation of the Chen and CSBK correlations. PFHE flow visualisation tests show surface tension effects which can substantially increase condensation rates at low mass-flux conditions. By defining the film Reynolds number to allow for crevice drainage, a Nusselt-type heat transfer correlation is obtained for industrial reboiler conditions. Counteracting this enhancement, it is suggested that in practice there is a significant sub-cooled condensate region caused by outlet distributor flooding. The implications of this effect on inert gas handling and downcomer design are noted.

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Pages: 2006-3

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Details

  • Original title: Oxygen thermosiphon reboiler-condenser thermal-hydraulics.
  • Record ID : 2007-1853
  • Languages: English
  • Source: Multiconference CryoPrague 2006 (9th Cryogenics 2006, ICEC 21, ICMC'06)
  • Publication date: 2006/07/17

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