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Experimental analysis of an inverter-driven scroll compressor with liquid injection.

Author(s) : AFJEI T., SUTER P., FAVRAT D.

Summary

An air-to-water heat pump with R22 as the working fluid was equipped with an inverter and a hermetic scroll compressor. Liquid refrigerant was injected into the suction pipe to decrease the high discharge temperatures. The paper emphasizes the characteristic of the Inverter Compressor Combination at different suction vapour qualities and speeds. The leakage across radial and axial clearances is investigated theoretically. It was observed in an experimental analysis that the isentropic compressor efficiency and the mass flow efficiency decrease substantially with decreasing suction vapour quality. Only the energetic efficiency, accounting for the compressor shell losses, improves due to the lower shell temperatures.

Details

  • Original title: Experimental analysis of an inverter-driven scroll compressor with liquid injection.
  • Record ID : 1993-0871
  • Languages: English
  • Publication date: 1992/07/14
  • Source: Source: Proc. 1992 int. Compress. Eng. Conf., Purdue Univ.
    vol. 2; 541-550; 7 fig.; 5 ref.
  • Document available for consultation in the library of the IIR headquarters only.

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