IIR document
Experimental study of ammonia falling film evaporation heat transfer on horizontal smooth and finned tubes.
Number: 0311
Author(s) : AKADA I., NISHIDA K., INOUE N.
Summary
Ammonia falling film evaporation experiments were conducted on three horizontally placed types of stainless steel tubes, namely smooth, low fin and 3D fin and enhancement of heat transfer was examined. For falling film tests, heat transfer coefficients of the smooth tube decreased with increasing circumferential angle starting from the top of the tube. For finned tubes, liquid film was held between the fins, thus causing decrease in heat transfer coefficients. A comparison of average heat transfer coefficients in the low Reynolds number range shows that the smooth tube had the highest heat transfer coefficients followed by 3D and low finned tubes respectively. Heat transfer enhancement by the fins was not observed. In the high Reynolds number range, convection occurred in the liquid film between the fins of the 3D tube but it was not very significant and the heat transfer coefficients are similar to those of the smooth tube.
Available documents
Format PDF
Pages: 9 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: Experimental study of ammonia falling film evaporation heat transfer on horizontal smooth and finned tubes.
- Record ID : 30031598
- Languages: English
- Subject: Technology
- Source: Proceedings of the 26th IIR International Congress of Refrigeration: Paris , France, August 21-25, 2023.
- Publication date: 2023/08/21
- DOI: http://dx.doi.org/10.18462/iir.icr.2023.0311
Links
See other articles from the proceedings (491)
See the conference proceedings
-
A general correlation for heat transfer during ...
- Author(s) : SHAH M. M.
- Date : 2021/10
- Languages : English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 130
- Formats : PDF
View record
-
The effect of tube diameters on evaporation hea...
- Author(s) : AKADA I., OBATA K., KATO M., NISHIDA K., INOUE N.
- Date : 2020/12/07
- Languages : English
- Source: 14th IIR-Gustav Lorentzen Conference on Natural Refrigerants (GL2020). Proceedings. Kyoto, Japon, December 7-9th 2020.
- Formats : PDF
View record
-
A study of falling film evaporation on finned t...
- Author(s) : CHIEN L. H., CHEN R. H.
- Date : 2010/06/07
- Languages : English
- Source: ACRA2010. Asian conference on refrigeration and air conditioning: Tokyo, Japan, June 7-9, 2010.
- Formats : PDF
View record
-
Falling film evaporation heat transfer of ammon...
- Author(s) : AKADA I., NISHIDA K., INOUE N.
- Date : 2022/06/13
- Languages : English
- Source: 15th IIR-Gustav Lorentzen Conference on Natural Refrigerants (GL2022). Proceedings. Trondheim, Norway, June 13-15th 2022.
- Formats : PDF
View record
-
Experimental assessment of flow distributors fo...
- Author(s) : BUSTAMANTE J. G., GARIMELLA S.
- Date : 2019/05
- Languages : English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 101
- Formats : PDF
View record