Correlating heat transfer and friction in helically-finned tubes using artificial neural networks.
Author(s) : ZDANIUK G. J., CHAMRA L. M., WALTERS D. K.
Type of article: Article
Summary
An artificial neural network (ANN) approach was used to correlate experimentally determined Colburn j-factors and Fanning friction factors for flow of liquid water in straight tubes with internal helical fins. Experimental data came from eight enhanced tubes with helix angles between 25 and 48°, number of fin starts between 10 and 45, fin height-to-diameter ratios between 0.0199 and 0.0327, and Reynolds numbers ranging from 12 000 to 60 000. The performance of the neural networks was found to be superior compared to the corresponding power-law regressions. The ANNs were subsequently used to predict data of other researchers but the results were less accurate. The ANN training database was therefore expanded to include experimental data from two independent investigations. The ANNs trained with the combined database showed satisfactory results, and were superior to algebraic power-law correlations developed with the combined database. [Reprinted with permission from Elsevier. Copyright, 2007].
Details
- Original title: Correlating heat transfer and friction in helically-finned tubes using artificial neural networks.
- Record ID : 2008-1252
- Languages: English
- Source: International Journal of Heat and Mass Transfer - vol. 50 - n. 23-24
- Publication date: 2007/11
Links
See other articles in this issue (7)
See the source
Indexing
- Themes: Heat transfer
- Keywords: Geometry; Friction; Correlation; Microfin tube; Ribbed tube; Heat transfer; Artificial neural network; Heat exchanger; Pressure drop
-
A combined approach to predict friction coeffic...
- Author(s) : SARMA P. K., KISHORE P. S., RAO V. D., et al.
- Date : 2005/04
- Languages : English
- Source: International Journal of thermal Sciences - vol. 44 - n. 4
View record
-
Friction factor correlation and pressure loss o...
- Author(s) : AFROZ H. M. M., MIYARA A.
- Date : 2007/11
- Languages : English
- Source: International Journal of Refrigeration - Revue Internationale du Froid - vol. 30 - n. 7
- Formats : PDF
View record
-
Performance predictions of laminar and turbulen...
- Author(s) : XIE G., SUNDEN B., WANG Q., et al.
- Date : 2009/05
- Languages : English
- Source: International Journal of Heat and Mass Transfer - vol. 52 - n. 11-12
View record
-
Single-phase heat transfer and flow characteris...
- Author(s) : HAN D. H., LEE K. J.
- Date : 2005/08
- Languages : English
- Source: Applied Thermal Engineering - vol. 25 - n. 11-12
View record
-
Experimental studies on heat transfer and frict...
- Author(s) : SIVASHANMUGAM P., SURESH S.
- Date : 2007/06
- Languages : English
- Source: Applied Thermal Engineering - vol. 27 - n. 8-9
View record