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Experimental determination of the transfer characteristics of two-phase secondary refrigerants.

Détermination expérimentale des caractéristiques de transferts dans les frigoporteurs diphasiques.

Author(s) : BEN LAKHDAR M. A., GUILPART J., GAUTHERIN W., LALLEMAND A.

Summary

This experimental study was conducted on a two-phase secondary refrigerant of an ice-slurry type (ice + water + ethanol). Measurement of decrease in pressure enabled the rheological characteristics of the slurry to be investigated using Ostwald's law. Heat properties were studied and enabled the temperature profiles and Nusselt number evolution to be determined for the ice slurry circulating under laminar-flow conditions inside a pipe, the outer wall of which was subjected to constant heat-flow conditions. The impact of the increase in the ice fraction on behaviour laws and on heat transfer was also investigated.

Details

  • Original title: Détermination expérimentale des caractéristiques de transferts dans les frigoporteurs diphasiques.
  • Record ID : 1999-3567
  • Languages: French
  • Source: Thermodynamics, heat and mass transfer of refrigeration machines and heat pumps. Proceedings of the EUROTHERM Seminar 59./ Thermodynamique et transferts de chaleur et de masse dans les machines à froid et pompes à chaleur. Comptes rendus du séminaire EUROTHERM 59.
  • Publication date: 1998/07/06
  • Document available for consultation in the library of the IIR headquarters only.

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