ShareHeat transfer and pressure drop characteristics of R134a, R32, and a mixture of R32-R134a inside a horizontal tube.
Author(s) : TORIKOSHI K., EBISU T.
Summary
These characteristics were investigated experimentally during evaporation and condensation. The mass flux of the refrigerants was varied during the course of the experiments. The evaporative heat transfer coefficients for R134a and R32 became, respectively, smaller and larger than those for R22. Their condensational heat transfer coefficients were larger than those for R22. For the mixture of R32-R134a (30-70%) the evaporative and condensational heat transfer coefficients fell below the results for R22.
Details
- Original title: Heat transfer and pressure drop characteristics of R134a, R32, and a mixture of R32-R134a inside a horizontal tube.
- Record ID : 1994-3442
- Languages: English
- Source: ASHRAE Transactions.
- Publication date: 1993
- 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; Heat transfer coefficient; Measurement; Heat transfer; Bare pipe; R32; Mixture; Evaporation; Refrigerant; Condensation; Pressure drop
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- Author(s) : SAMI S. M., POIRIER B.
- Date : 1997
- Languages : English
- Source: ASHRAE Transactions.1997 Annual Meeting, Boston, MA.
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In-tube heat transfer characteristics of refrig...
- Author(s) : TORIKOSHI K., EBISU T.
- Date : 1994/07/19
- Languages : English
- Source: Proceedings of the 1994 International Refrigeration Conference at Purdue.
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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.
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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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