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NEW TYPE OF CHARGE INTRODUCED FOR THERMOSTATIC EXPANSION VALVES.

Type of article: Article

Summary

SOME TYPES OF REFRIGERANT EVAPORATOR ARE SUSCEPTIBLE TO RAPID BUT TEMPORARY LOAD CHANGES. A CLOSE-FINNED, WETTED-SURFACE, AIR-CONDITIONING COIL COULD BE AN EXAMPLE. THE NORMAL TYPES OF LIQUID OR GAS CHARGED TEV THERMAL PHIALS REACT TOO QUICKLY AND WILL SET UP HUNTING CONDITIONS. A NEW TYPE OF PHIAL, HAVING A BALLAST PIECE OF POROUS MATERIAL, PRESENTS A LARGE SURFACE AREA TO THE CHARGE LIQUID AND INCREASED MASS. THE EFFECT IS TO SLOW DOWN THE REACTION TO SUDDEN TEMPERATURE CHANGES IN THE SUPERHEATED REFRIGERANT AT EVAPORATOR OUTLET. THE SUPERHEAT SETTING CAN BE DECREASED WITHOUT HUNTING OCCURRING. D.W.H.

Details

  • Original title: NEW TYPE OF CHARGE INTRODUCED FOR THERMOSTATIC EXPANSION VALVES.
  • Record ID : 1989-1825
  • Languages: English
  • Source: AIRAH J. - vol. 42 - n. 8
  • Publication date: 1988
  • Document available for consultation in the library of the IIR headquarters only.

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