EXPERIMENTAL STUDY ON CONDENSATION OF REFRIGERANT-OIL MIXTURES. 2. RESULTS OF R12 AND R22 ON THE EXTERNAL SURFACE OF SINGLE AND MULTIPLE HORIZONTAL PLAIN TUBES.

Author(s) : WANG J. C. Y., KALAMCHI A. al-, FAZIO P.

Summary

TEST RESULTS OF R12 AND R22 ARE PRESENTED. 518 TEST RUNS ARE COVERED, AMONG THEM 343 WITH R12 AND 175 WITHR22. THE OIL USED IN THE STUDY IS ALKYLBENZENE-BASED. THE REFRIGERANT VAPOUR, WITH OR WITHOUT THE PRESENCE OF OIL, CONDENSED ON THE EXTERNAL SURFACE OF SINGLE AND MULTIPLE, HORIZONTAL PLAIN TUBES. IT WAS FOUND THAT THE HIGHER THE OIL-TO-REFRIGERANT MASS FLOW RATIO, THE LOWER THE CONDENSING FILM COEFFICIENT FOR BOTH SINGLE AND MULTIPLE TUBES. EMPIRICAL EQUATIONS ARE GIVEN AND RECOMMENDED FOR THE PRACTICAL DESIGN OF R12 AND R22 CONDENSERS.

Details

Original title: EXPERIMENTAL STUDY ON CONDENSATION OF REFRIGERANT-OIL MIXTURES. 2. RESULTS OF R12 AND R22 ON THE EXTERNAL SURFACE OF SINGLE AND MULTIPLE HORIZONTAL PLAIN TUBES.
Record ID : 1986-2205
Languages: English
Publication date: 1985
Source: Source: ASHRAE Trans.
vol. 91; n. 2A; 229-237; 8 fig.; 4 ref.
Document available for consultation in the library of the IIR headquarters only.

Indexing

Themes: CFCs;
HCFCs;
Lubricants
Keywords: Horizontal tube; Heat transfer coefficient; Halogen; Design; R22; R12; Mixture; Synthetic oil; Oil; Testing; Refrigerant; Condenser; Condensation