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The paper describes the research effort and some of the results on the heat transfer testing of the potential R22 alternatives. The paper outlines the experimental methodology, presents some of the salient results for the evaporative and condensation heat transfer tests for both inside and outside tubes. The refrigerants studied were R22, R134a, R32-R134a, R32-R134a-R125 and R32-R125. The R32-R125 azeotrope had the best behaviour as compared to R22 followed by R134a. Both of these had adverse impacts with the presence of lubricants.
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Details
- Original title: Heat transfer testing of alternative refrigerants to R22.
- Record ID : 1996-1511
- Languages: English
- Source: For a Better Quality of Life. 19th International Congress of Refrigeration.
- Publication date: 1995/08/20
- Document available for consultation in the library of the IIR headquarters only.
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Indexing
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Themes:
HCFCs;
HFCs;
Mass transfer;
Blends - Keywords: R134a; Measurement; Heat transfer; R32; R22; R125; Mixture; Evaporation; Condensation
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- Date : 1999/01
- Languages : English
- Source: HVAC&R Research - vol. 5 - n. 1
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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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Condensation in smooth horizontal tubes.
- Author(s) : DOBSON M. K., CHATO J. C.
- Date : 1998/02
- Languages : English
- Source: J. Heat Transf. - vol. 120 - n. 1
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Recent progress on thermodynamic property studi...
- Author(s) : WATANABE K., SATO H.
- Date : 1993/05/12
- Languages : English
- Source: Energy Efficiency in Refrigeration and Global Warming Impact.
- Formats : PDF
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