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MODELLING OF THE TWO-PHASE EXPANSION OF A PURE FLUID. APPLICATION TO HEAT-PUMP EXPANSION VALVES.

MODELISATION DE LA DETENTE DIPHASIQUE D'UN FLUIDE PUR. APPLICATION AUX DETENDEURS DE POMPES A CHALEUR.

Author(s) : GUIGUEMDE R. W.

Type of monograph: Doctoral thesis

Summary

A NUMERICAL EXPANSION VALVE WAS INSTALLED IN A WATER-WATER HEAT PUMP, IN ORDER TO ANALYZE THE IMPROVEMENTS, RELATIVE TO THE USE OF A THERMOSTATIC EXPANSION VALVE. IMPROVEMENTS ARE SIGNIFICANT UNDER VARYING CONDITIONS AWAY FROM THE DESIGN POINT. A MODELLING OF EXPANSION UNDER TWO-PHASE CONDITIONS IS PROPOSED, FOR OPTIMIZING THE DIAMETER OF EXPANSION ORIFICES. THE MODEL MAKES IT POSSIBLE TO CALCULATE DIFFERENT FLOWS. THE METHOD FROM TAITEL AND DUKLER IS USED FOR PASSING FROM ONE FLOW CONDITION TO ANOTHER.

Details

  • Original title: MODELISATION DE LA DETENTE DIPHASIQUE D'UN FLUIDE PUR. APPLICATION AUX DETENDEURS DE POMPES A CHALEUR.
  • Record ID : 1992-1876
  • Languages: French
  • Publication: France/France
  • Publication date: 1990
  • Source: Source: 90 ISAL 0106; 177 p.

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