DEVELOPMENT OF HIGH-TEMPERATURE HEAT PUMP USING ALTERNATIVE MIXTURES.

Summary

4 KINDS OF MIXTURES R22-R134A, R22-R152A, R22-R142B AND R22-R123, WERE EVALUATED IN ORDER TO REALIZE HIGHER CONDENSING TEMPERATURE THAN THAT USING R22 AT HIGH TEMPERATURE OPERATION, AND LARGER HEATING CAPACITY THAN THAT USING R22-R114 AT NORMAL TEMPERATURE OPERATION. THESE MIXTURES WERE APPLIED TO A NEWLY-DEVELOPED COMPOSITION CHANGEABLE RECTIFYING CIRCUIT IN WHICH THE HIGHER-BOILING-POINT REFRIGERANT WASSPRDO. THE COMPOSITION CHANGEABLE HIGH-TEMPERATURE HEAT PUMP INDICATED THE MOST EFFECTIVE CHARACTERISTICS WHEN USING R22-R142B AS THE REFRIGERANT.

Details

Original title: DEVELOPMENT OF HIGH-TEMPERATURE HEAT PUMP USING ALTERNATIVE MIXTURES.
Record ID : 1991-1352
Languages: English
Publication date: 1990/07/17
Source: Source: USNC-IIR/Proc. 1990 Refrig. Conf., Purdue Univ./ASHRAE, Purdue CFC Conf./Purdue Univ., Ray W. Herrick Lab., Sch. mech. Eng.
459-465; 4 fig.; 6 tabl.; 3 ref.
Document available for consultation in the library of the IIR headquarters only.

Indexing

Themes: CFCs;
Heat pumps techniques;
HCFCs;
HFCs;
Blends
Keywords: R134a; R114; Halogen; R22; R152a; R142b; R123; Heat pump; Performance; Zeotropic mixture; Development; Refrigerant