IIR document
Effect of heat conduction through the fins on the air side performance of minichannel evaporators under dehumidifying conditions.
Number: pap. n. 463
Author(s) : HUSSEIN HASSAN A., MARTÍNEZ-BALLESTER S., GONZÁLVEZ-MACIÁ J.
Summary
The current paper presents a fundamental numerical approach to minichannel evaporator modelling under dehumidifying conditions. This numerical approach takes into account the 2D longitudinal heat conduction in any wall element, does not apply the fin theory, and captures a detailed representation of air properties. After verification with analytical solutions, a comparative study was implemented between the proposed model Fin2D, and effectiveness-NTU (e-NTU) approach which is basically based on the assumption of adiabatic-fin-tip at half the height even at the presence of temperature difference between the tubes. This widely used assumption prevents the heat conduction between the tubes through the fins, which in turn results in a misprediction of the actual fin status and its mean temperature. The results show significant deviations in the latent and total heat transfer between the two approaches, especially in the cases of partially wet fin and high values of superheat between the neighbouring tubes.
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: Effect of heat conduction through the fins on the air side performance of minichannel evaporators under dehumidifying conditions.
- Record ID : 30015895
- Languages: English
- Source: Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
- Publication date: 2015/08/16
- DOI: http://dx.doi.org/10.18462/iir.icr.2015.0463
Links
See other articles from the proceedings (657)
See the conference proceedings
Indexing
-
Thermal performance of louvered fin-tube heat e...
- Author(s) : LIM J., PARK W., CHO K.
- Date : 2015/08/16
- Languages : English
- Source: Proceedings of the 24th IIR International Congress of Refrigeration: Yokohama, Japan, August 16-22, 2015.
- Formats : PDF
View record
-
Numerical model of particle deposition on fin s...
- Author(s) : ZHAN F., ZHUANG D., DING G., et al.
- Date : 2016/12
- Languages : English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 72
- Formats : PDF
View record
-
Theoretical analysis and experimental design of...
- Author(s) : GU Y., ZOU Y., PAN S., 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
-
Numerical prediction of frost properties and pe...
- Author(s) : HWANG J., CHO K.
- Date : 2014/10
- Languages : English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 46
- Formats : PDF
View record
-
EFFECT OF FIN SPACING ON THE PERFORMANCE OF HOR...
- Author(s) : YAU K. K., COOPER J. R., ROSE J. W.
- Date : 1985/05
- Languages : English
- Source: J. Heat Transf. - vol. 107 - n. 2
View record