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The detection of liquid slugging phenomena in reciprocating compressors via power measurements.

Author(s) : LAUGHMAN R. L., ARMSTRONG P. R., NORFORD L. K., et al.

Summary

The presence of liquid refrigerant in the compressor cylinder during operation, or liquid slugging, is one of the most common causes of failure in reciprocating compressors. The authors propose to detect this fault by analyzing the electrical current flowing into the compressor and identifying the change in the load on the motor caused by the presence of liquid in the compressor cylinder. Two different types of liquid slugging are examined in this paper. In the first, small volumes of liquid are ingested during the steady-state operation of the compressor; in the second, small volumes of liquid are present at the suction port of the compressor immediately prior to the compressor start. Experimental data from a 1-ton split air-conditioning system is used to demonstrate methods for identifying these faults.

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Details

  • Original title: The detection of liquid slugging phenomena in reciprocating compressors via power measurements.
  • Record ID : 2007-2007
  • Languages: English
  • Source: 2006 Purdue Conferences. 18th International Compressor Engineering Conference at Purdue & 11th International Refrigeration and Air-Conditioning Conference at Purdue [CD-ROM].
  • Publication date: 2006/07/17

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