Two-phase flow condensation characteristics of alternatives to R-502 inside air/refrigerant enhanced surface tubing
Conference
·
OSTI ID:20085650
An experimental study compared the heat transfer characteristics of two-phase flow condensation of alternative zeotropic refrigerant mixtures to R-502 inside air/refrigerant horizontal enhanced surface tubing. The alternatives considered in this study are R-507, R-404A, R-407B, and R-408A. It was evident from the condensation experimental data that R-407B has the lowest heat transfer rate compared to the other blends in the investigated range of refrigerant mass flow rates and heat flux. Furthermore, experimental data on the two-phase condensation pressure gradient across the test section at different Reynolds numbers showed that R-404A has the highest convective pressure drop among the blends under investigation.
- Research Organization:
- Univ. of Moncton, New Brunswick (CA)
- Sponsoring Organization:
- Natural Sciences and Engineering Research Council of Canada
- OSTI ID:
- 20085650
- Country of Publication:
- United States
- Language:
- English
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