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IMPROVEMENT IN EFFECTIVENESS OF CASCADE REFRIGERATING PLANTS EQUIPPED BY CENTRIFUGAL COMPRESSORS.

[In Russian. / En russe.]

Author(s) : SKOROHODOVA T. N., PETROV E. T., PECATNIKOV M. Z.

Type of article: Article

Summary

EXPERIMENTAL CHARACTERISTIC CURVES WERE OBTAINED FOR STAGE CENTRIFUGAL COMPRESSORS OPERATING IN CASCADE COOLING CYCLES. THE COOLING PLANT PROVIDED FOR BOILING TEMPERATURES 163, 232 AND 273 K (-110, -41 AND 0 DEG C.) THE UPPER CASCADE WAS OPERATING ON PROPANE AND THE LOWER ON ETHYLENE. AMBIENT TEMPERATURES OF 278 TO 282 K (5 TO 9 DEG C) WERE MAINTAINED DURING THE TESTS. ALL TESTED CENTRIFUGAL COMPRESSORS WERE MANUFACTURED IN CZECHOSLOVAKIA. THE AA. CLAIM THAT AN INCREASE IN CONDENSING TEMPERATURES BY 1 K (1 DEG C) OR A CORRESPONDING CHANGE IN PRESSURES LED TO INCREASES IN POWER CONSUMPTION OF 2.5-3.5%. THUS, A CONTINUOUS REMOVING OF THE NONCONDENSED GASES FROM THE COOLING CIRCUIT WAS CONSIDERED AS VERY DESIRABLE. E.K.

Details

  • Original title: [In Russian. / En russe.]
  • Record ID : 1982-0790
  • Languages: Russian
  • Source: Kholodilnaya Tekhnika - n. 4
  • Publication date: 1981
  • Document available for consultation in the library of the IIR headquarters only.

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