Flow boiling heat transfer performance of R448A inside multiports mini-channel tubes with different geometry.
Number: 0376
Author(s) : HIEU H. N., AGUSTIARINI N., OH J. T., KIM J. K.
Summary
R448A, a zeotropic blend with GWP of 1390, is being proposed as an alternative refrigerant working in air-conditioning and heat pump systems. Despite being suitable as drop-in refrigerants, some redesigning of R448A systems was recommended for achieving maximum efficiency. In the work, the heat transfer coefficient of R448A inside multiple multiport mini-channel tube with different geometries were experimentally investigated. The experimental range of mass flux is from 100 to 500 kg/m2s, heat flux from 3 to 15 kW/m2 at a fixed saturated temperature of 6°C, in 3 multiport tubes with varying hydraulic diameter, number of ports and aspect ratio. The influence of mass flux, heat flux, and vapor quality are examined, as well as the effect of channel geometry on the heat transfer performance. Finally, a correlation including the channel geometrical effect is proposed for the prediction of R448A heat transfer coefficient.
Available documents
Format PDF
Pages: 8 p.
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: Flow boiling heat transfer performance of R448A inside multiports mini-channel tubes with different geometry.
- Record ID : 30031137
- Languages: English
- Subject: HFCs alternatives
- Source: 14th IEA Heat Pump Conference 2023, Chicago, Illinois.
- Publication date: 2023/05/15
Links
See other articles from the proceedings (78)
See the conference proceedings
Indexing
-
Experimental study of R448A flow boiling in a 2...
- Author(s) : LI H., HRNJAK P.
- Date : 2024/02
- Languages : English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 158
- Formats : PDF
View record
-
Experiments on flow boiling characteristics of ...
- Author(s) : JIGE D., KIKUCHI S., EDA H., et al.
- Date : 2019/08/24
- Languages : English
- Source: Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
- Formats : PDF
View record
-
Prediction of two-phase flow boiling heat trans...
- Author(s) : CHIEN N. B., VU P. Q., OH J. T.
- Date : 2019/08/24
- Languages : English
- Source: Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
- Formats : PDF
View record
-
Boiling heat transfer of new zeotropic mixtures.
- Author(s) : BERTO A., GUZZARDI C., AZZOLIN M., et al.
- Date : 2019/08/24
- Languages : English
- Source: Proceedings of the 25th IIR International Congress of Refrigeration: Montréal , Canada, August 24-30, 2019.
- Formats : PDF
View record
-
An experimental investigation of Refrigerant Mi...
- Author(s) : HOANG H. N., ARGUSTIARINI N., OH J. T., KIM J.
- Date : 2023/08/21
- Languages : English
- Source: Proceedings of the 26th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
- Formats : PDF
View record