ADVANCED TIGHTNESS TECHNOLOGY FOR DOMESTIC HEAT PUMP COMPRESSORS.

NOUVELLES TECHNOLOGIES D'ETANCHEITE DANS LES COMPRESSEURS DE POMPES A CHALEUR DOMESTIQUES.

Type of article: Periodical article

Summary

THE STUDY SHOWS THE POSSIBILITY OF ACHIEVING THE TIGHTNESS AND LUBRICATION OF LINER AND PISTON OF A HEAT PUMP COMPRESSOR WITH THE INJECTION OF LIQUID REFRIGERANT AT LINER LEVEL. DUAL PHASE FLOW OCCURS AT THE EXPANSION WHICH CAN BE PREDICTED BY THE LOCKHART-MARTINELLI METHOD. THE FLOW MEASURED WITH R114 ON A HEAT PUMP COMPRESSOR IS EQUAL TO SOME PERCENTS OF COMPRESSED FLOW. ENERGY GAIN IS ESTIMATED AT 100 W. DUE TO THE EVAPORATION OF THE REFRIGERANT ONE CAN HOPE FOR A REDUCTION OF THE END TEMPERATURE OF COMPRESSION BY 15 TO 20 K. (Bibliogr. int. IFP-CNRS, FR., 84-T 230-5092.

Details

Original title: NOUVELLES TECHNOLOGIES D'ETANCHEITE DANS LES COMPRESSEURS DE POMPES A CHALEUR DOMESTIQUES.
Record ID : 1984-1621
Languages: French
Source: DGRST - 82.S.0632; 32 p.
Publication date: 1983
Document available for consultation in the library of the IIR headquarters only.

Links

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Indexing

Themes: Heat pumps techniques;
Residential heat-pumps
Keywords: Tightness; R114; Lubrication; Heat pump; Compressor