Summary
This paper concerns the experimental test results of homogeneous refrigerant R134a and zeotropic solutions R404A, R407C and R410A condensation in pipe minichannels with an internal diameter d?=?0.90–3.30?mm. The paper presents experimental thermal and flow characteristics of condensation in comparable ranges. The experimental results were compared to the calculated results of other authors' correlations. It was found that the discrepancy between the results of tests and calculations is large, especially for zeotropic solutions, and in excess of the range of ±50%. The authors developed their own correlations, providing compatibility within ±25% for all of the tested refrigerants. Correlations are proposed for annular and annular-stratified two-phase flow structures.
Available documents
Format PDF
Pages: 210-223
Available
Public price
20 €
Member price*
Free
* Best rate depending on membership category (see the detailed benefits of individual and corporate memberships).
Details
- Original title: Empirical study of heterogeneous refrigerant condensation in pipe minichannels.
- Record ID : 30016301
- Languages: English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 59
- Publication date: 2015/11
Links
See other articles in this issue (27)
See the source
Indexing
-
Themes:
Evaporators, condensers and other heat exchangers;
HFCs;
Heat transfer - Keywords: R410A; R407C; R134a; Pipe; Heat transfer; R404A; Refrigerant; Condenser; Condensation; Pressure drop
-
Wplyw rodzaju czynnika wysokocisnieniowego, sub...
- Author(s) : BOHDAL T., CHARUN H., CZAPP M.
- Date : 2009/12
- Languages : Polish
- Source: Chlodnictwo - vol. 44 - n. 12
View record
-
Comparative investigations of the condensation ...
- Author(s) : BOHDAL T., CHARUN H., SIKORA M.
- Date : 2011/04
- Languages : English
- Source: International Journal of Heat and Mass Transfer - vol. 54 - n. 9-10
View record
-
Analiza charakterystyk cieplnych skraplania chl...
- Author(s) : BOHDAL T., SIKORA M., WIDOMSKA K.
- Date : 2014/09
- Languages : Polish
- Source: Chlodnictwo - vol. 49 - n. 9-10
View record
-
Scambiatori compatti per il condizionamento amb...
- Author(s) : BOCCARDI G., CELATA G. P., CUMO M., et al.
- Date : 1999/12
- Languages : Italian
- Source: Termotecnica - vol. 53 - n. 10
View record
-
Condensation of refrigerants in a multiport tub...
- Author(s) : JIGE D., INOUE N., KOYAMA S.
- Date : 2016/07
- Languages : English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 67
- Formats : PDF
View record