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A robust modelling approach for simulating refrigerant flow through capillary tubes.

Author(s) : HERMES C. J. L., MELO C., GONÇALVES J. M.

Summary

A novel computational model for simulating refrigerant flow through capillary tubes is proposed and validated using a dataset composed of 1005 experimental data points, including adiabatic and non-adiabatic flows of refrigerants HFC-134a and HC-600a. The modeling approach is based on the mass, energy and momentum conservation principles written according to their one-dimensional differential formulation. Some simplifications were added to the model in order to improve its numerical stability. It was found that the model predicts 87% of the measured refrigerant mass flow rate for adiabatic and 76% for non-adiabatic flow within an error band of plus or minus 10%.

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Pages: ICR07-B2-1566

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Details

  • Original title: A robust modelling approach for simulating refrigerant flow through capillary tubes.
  • Record ID : 2008-0158
  • Languages: English
  • Source: ICR 2007. Refrigeration Creates the Future. Proceedings of the 22nd IIR International Congress of Refrigeration.
  • Publication date: 2007/08/21

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