ShareExperimental study on the heat transfer performance of a zeotropic refrigerant mixture in horizontal tubes.
Author(s) : UCHIDA M., ITOH M., SHIKAZONO N., KUDOH M.
Summary
The condensation and evaporation heat transfer performance of a zeotropic refrigerant mixture (R32-R125-R134a) inside horizontal tubes with smooth, grooved or cross-grooved inner surfaces was investigated experimentally. The cross-grooved tube showed the highest heat transfer coefficient for both condensation and evaporation with the zeotropic mixture. Its heat transfer coefficient was nearly three times as high as that of the smooth tube, and 20 to 40% higher than that of the grooved tube. Thus, the cross-grooved tube appears suitable for practical use in heat exchangers using zeotropic mixture.
Details
- Original title: Experimental study on the heat transfer performance of a zeotropic refrigerant mixture in horizontal tubes.
- Record ID : 1997-0165
- Languages: English
- Source: Proceedings of the 1996 Purdue International Refrigeration Conference.
- Publication date: 1996/07/23
- Document available for consultation in the library of the IIR headquarters only.
Links
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Indexing
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Themes:
HFCs;
Mass transfer;
Blends - Keywords: R134a; Horizontal tube; Measurement; Heat transfer; R32; R125; Substitute; Zeotropic mixture; Evaporation; Refrigerant; Condensation
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Flow boiling heat transfer experiments with zeo...
- Author(s) : ROHLIN P.
- Date : 1995/08/20
- Languages : English
- Source: For a Better Quality of Life. 19th International Congress of Refrigeration.
- Formats : PDF
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In-tube condensation heat transfer of refrigera...
- Author(s) : DOERR T. M., ECKELS S. J., PATE M. B.
- Date : 1994
- Languages : English
- Source: ASHRAE Transactions 1994.
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Evaporation heat transfer of HCFC22 and its alt...
- Author(s) : GOTO M., INOUE N., KOYAMA K.
- Date : 1995/08/20
- Languages : English
- Source: For a Better Quality of Life. 19th International Congress of Refrigeration.
- Formats : PDF
View record
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Condensation heat transfer of HCFC22 and its al...
- Author(s) : GOTO M., INOUE N., KOYAMA K.
- Date : 1995/08/20
- Languages : English
- Source: For a Better Quality of Life. 19th International Congress of Refrigeration.
- Formats : PDF
View record
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In-tube evaporation heat transfer or refrigeran...
- Author(s) : DOERR T. M., PATE M. B.
- Date : 1994/07/19
- Languages : English
- Source: Proceedings of the 1994 International Refrigeration Conference at Purdue.
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