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COMPRESSOR SUPERHEATING: THE MOST SERIOUS CURRENT PROBLEM IN REFRIGERATING PLANTS.

[In Italian. / En italien.]

Type of article: Article

Summary

MOST OF THE DAMAGE WHICH OCCURS TODAY IN COMPRESSORS IS CAUSED BY SUPERHEATING, NOT BY LIQUID SUCTION, AS IN PAST TIMES. AS OIL LOSES ITS LUBRICATING POWER AT A LOWER TEMPERATURE THAN THAT WHICH PRODUCES CARBONIZATION, THE AUTHOR STRESSES THE NEED TO LIMIT THE TEMPERATURE OF THE COMPRESSED FLUID, MEASURED AT THE DISCHARGE LINE, TO 393 K (120 DEG C). TO THIS END, TWO TABLES ARE GIVEN IN WHICH THE MAXIMUM ALLOWABLE TEMPERATURE FOR INLET VAPOUR FOR R22 AND R502 IS PROPOSED AS A FUNCTION OF EVAPORATION AND CONDENSATION TEMPERATURES. IF NECESSARY, ESPECIALLY WHEN A GAS-LIQUID HEAT EXCHANGER IS INSTALLED, LIQUID INJECTION INTO THE SUCTION LINE OF THE COMPRESSOR IS RECOMMENDED. E. F.

Details

  • Original title: [In Italian. / En italien.]
  • Record ID : 1990-1872
  • Languages: Italian
  • Source: Industria italiana del Freddo - vol. 43 - n. 5
  • Publication date: 1989
  • Document available for consultation in the library of the IIR headquarters only.

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