ShareTwo-phase flow condensation heat transfer and pressure drop characteristics of HCFC22 and AZ20.
Author(s) : WIJAYA H., SPATZ M. W.
Summary
The paper presents the two-phase condensation heat-transfer coefficient and pressure drop characteristics of R22 and AZ20 (an azeotropic mixture of 50-50% by weight of R32-R125). The experiments were conducted without oil in the refrigerant loop. The results showed that at similar mass fluxes the condensation heat-transfer coefficients for AZ20 were slightly higher (about 2 to 6%) than those of R22. However, the pressure drops for AZ20 were significantly lower (about 25 to 45%) than those of R22.
Details
- Original title: Two-phase flow condensation heat transfer and pressure drop characteristics of HCFC22 and AZ20.
- Record ID : 1995-0856
- Languages: English
- Source: Proceedings of the 1994 International Refrigeration Conference at Purdue.
- Publication date: 1994/07/19
- Document available for consultation in the library of the IIR headquarters only.
Links
See other articles from the proceedings (73)
See the conference proceedings
Indexing
-
Themes:
Thermodynamic measurements;
HCFCs;
HFCs;
Blends - Keywords: Heat transfer coefficient; Measurement; Heat transfer; Bare pipe; R32; R22; R125; Mixture; Refrigerant; Condensation; Pressure drop
-
Local heat transfer coefficients during condens...
- Author(s) : ECKELS S. J., UNRUH B. J.
- Date : 1999/01
- Languages : English
- Source: HVAC&R Research - vol. 5 - n. 1
View record
-
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
View record
-
Two-phase flow heat transfer and pressure drop ...
- Author(s) : WIJAYA H., SPATZ M. W.
- Date : 1995/01
- Languages : English
- Source: ASHRAE Transactions.
View record
-
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.
View record
-
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
View record