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HEAT TRANSFER AND PRESSURE DROP PERFORMANCE OF SMOOTH AND INTERNALLY FINNED TUBES WITH OIL AND R22 MIXTURES.

Author(s) : SCHLAGER L. M., PATE M. B., BERGLES A. E.

Summary

THE OVERALL PERFORMANCE OF 2 AUGMENTED TUBES IS COMPARED WITH THAT OF A SMOOTH TUBE WITH PURE R22 AND WITH MIXTURES OF R22 PLUS ISO 32 OR ISO 68 (150-OR 300-SUS) NAPHTHENIC MINERAL OIL. ADDITIONALLY, THE PERFORMANCE OF ALL 3 TUBES WITH REFRIGERANT-OIL MIXTURES IS COMPARED TO PERFORMANCE OF THE SAME TUBE WITH PURE REFRIGERANT. THE ENHANCEMENT PERFORMANCE RATIO OF THE MICRO-FIN TUBE IS CONSISTENTLY HIGHER THAN THAT OF THE LOW-FIN TUBE WITH EITHER PURE REFRIGERANT OR REFRIGERANT-OILMUS THE OVERALL ADVANTAGE OF THE AUGMENTED TUBES IS NOT AS DEFINITIVE WITH REFRIGERANT-OIL MIXTURE.

Details

  • Original title: HEAT TRANSFER AND PRESSURE DROP PERFORMANCE OF SMOOTH AND INTERNALLY FINNED TUBES WITH OIL AND R22 MIXTURES.
  • Record ID : 1991-0612
  • Languages: English
  • Publication date: 1989
  • Source: Source: ASHRAE Trans.
    vol. 95; n. 2; 375-385; 13 fig.; 6 tabl.; 24 ref.
  • Document available for consultation in the library of the IIR headquarters only.

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