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NEW MICROCOMPUTER CONTROLLED EXPANSION VALVE AND ITS APPLICATIONS TO HEAT PUMPS.

[In Japanese. / En japonais.]

Author(s) : UMEHARA M.

Type of article: Article

Summary

THIS PAPER INTRODUCES A LINEAR EXPANSION VALVE DRIVEN BY ELECTRO-MAGNETIC MOTOR AND A CAPILLARY TUBE IN WHICH THE REFRIGERANT TEMPERATURE IS CONTROLLED BY A SMALL ELECTRO-MAGNETIC EXPANSION VALVE. THESE TWO DEVICES CAN SET THE SUPERHEAT AT THE EVAPORATOR EXIT AND MONITOR THE ENERGY CONSUMPTION AND CONTROL RANGE, SUCH AS PREVENTING CAPACITY REDUCTION AT LOW EVAPORATION TEMPERATURES, MINIMIZING FROST ACCUMULATION ON EVAPORATOR, SHORTENING THE DEFROST TIME, ETC. SOME APPLICATIONS DESCRIBED ARE AN AIR-AIR 10 KILOW HEAT PUMP WITH INVERTER, AN AIR-AIR 7 KILOW HEAT PUMP WITH A DUAL CONDENSER ABLE TO WORK SIMULTANEOUSLY OR SELECTIVELY AND AN AIR-WATER 23 KILOW HEAT PUMP.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 1985-2375
  • Languages: Japanese
  • Source: Refrigeration - vol. 59 - n. 682
  • Publication date: 1984
  • Document available for consultation in the library of the IIR headquarters only.

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