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RESULTS OF TESTS ON REFRIGERATION PLANT EQUIPPED WITH PI AND PDPI CONTROLS, WITH SUDDEN LOAD CHANGES IN THE EVAPORATOR.

RESULTATS D'EXPERIENCES MENEES SUR DES INSTALLATIONS FRIGORIFIQUES EQUIPEES DE REGULATEURS PI ET PDPI AVEC BRUSQUES VARIATIONS DE CHARGE A L'EVAPORATEUR.

Type of article: Article

Summary

DESCRIPTION OF THE PLANT AND OF THE CONTROL SYSTEMS STUDIED: PI FLUID INJECTION, PDPI CONTROL OF AIR TEMPERATURE, STEPWISE CONTROL OF THE PISTON COMPRESSOR, PROPORTIONAL CONTROL ON HOT GAS BY-PASS. THE PURPOSE OF THE TESTS WAS TO FIND THE LIMIT TO THE ALLOWABLE CAPACITY REDUCTION WITH STEADY CONTROL. THE PAPER GIVES THE VARIATIONS OF THE VARIOUS PARAMETERS OF THE REFRIGERATING CIRCUIT DURING THE TESTS, WHERE THE HEAT LOAD IS SUBJECTED TO A SERIES OF SUDDEN DECREASES TO A VALUE ALMOST EQUAL TO ZERO. J.G.

Details

  • Original title: RESULTATS D'EXPERIENCES MENEES SUR DES INSTALLATIONS FRIGORIFIQUES EQUIPEES DE REGULATEURS PI ET PDPI AVEC BRUSQUES VARIATIONS DE CHARGE A L'EVAPORATEUR.
  • Record ID : 1986-1903
  • Languages: French
  • Source: Rev. Danfoss - vol. 38 - n. 3
  • Publication date: 1985
  • Document available for consultation in the library of the IIR headquarters only.

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