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Determination of viscosities of oil-refrigerant mixtures at equilibrium by means of film thickness measurements.

Author(s) : JONSSON U. J., HOGLUND E. B.

Summary

To measure actual film thickness in a bearing contact lubricated with oil-refrigerant mixtures, a test rig was designed with which the film thickness could be measured by optical interferometry. The test rig was used to measure the effective viscosity of a polyolester together with R134a, as a function of temperature and pressure.

Details

  • Original title: Determination of viscosities of oil-refrigerant mixtures at equilibrium by means of film thickness measurements.
  • Record ID : 1995-0056
  • Languages: English
  • Source: ASHRAE Transactions.
  • Publication date: 1993
  • Document available for consultation in the library of the IIR headquarters only.

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