Home   >   CSC-OpenAccess Library   >    Manuscript Information
A Comparison of Correlations for Heat Transfer from Inclined Pipes
Krishpersad Manohar, Kimberly Ramroop
Pages - 268 - 278     |    Revised - 30-08-2010     |    Published - 30-10-2010
Volume - 4   Issue - 4    |    Publication Date - October 2010  Table of Contents
Conjugate Heat Transfer, Inclined pipes, Heat transfer correlations
A review of literature on heat transfer coefficients indicated very little work reported for cross-flow pipe arrangement at various angles of inclination. In this study forced airflow at 1.1 m/s and 2.5 m/s across 2 steel pipes of diameters 0.034m and 0.049m were examined with pipe orientation inclined at 30 and 60 degrees to the horizontal position. A comparison of the experimentally determined and the conventional method using existing correlations for horizontal pipes in cross-flow showed that at 30 degrees inclination, 1.1 m/s, values were in good agreement. However, there were large differences at 60 degrees inclination, 2.5 m/s. Comparing experimental data with the correlations of Churchill, Zhukaukas, Hilpert, Fand and Morgan showed that for 30 degrees inclination the deviation from experimental at 1.1 m/s ranged from 2% to 18% and 2% to 8% for the 0.034m and 0.049m pipes, respectively, while at 2.5 m/s the deviation ranged from 12 % to 31% and 20% to 41% for the 0.034m and 0.049m diameter pipes, respectively. At 60 degrees inclination the deviation from experimental at 1.1 m/s ranged from 19% to 45% and 27 % to 41% for the 0.034m and 0.049m pipes, respectively, while at 2.5 m/s the deviation ranged from 48% to 65% and 29% to 52% for the 0.034m and 0.049m diameter pipes, respectively.
CITED BY (3)  
1 Sunil, S. Evaluation of Convective Heat Transfer Coefficient of Air Flowing Through an Inclined Square Duct.
2 Li, G., Zheng, Y., Hu, G., & Zhang, Z. (2013). Experimental investigation on heat transfer enhancement from an inclined heated cylinder with constant heat input power in infrasonic pulsating flows. Experimental Thermal and Fluid Science, 49, 75-85.
3 Nikhil, R. S. (2012, July). Advancement in nanotechnology and its major issues. In Engineering Education: Innovative Practices and Future Trends (AICERA), 2012 IEEE International Conference on (pp. 1-6). IEEE.
1 Google Scholar 
2 Academic Journals Database 
3 CiteSeerX 
4 refSeek 
5 iSEEK 
6 Socol@r  
7 ResearchGATE 
8 Libsearch 
9 Bielefeld Academic Search Engine (BASE) 
10 Scribd 
11 WorldCat 
12 SlideShare 
13 PdfSR 
Churchill, S. W. and M. Bernstein. “A correlating Equation for Forced Convection from Gases and Liquids to a Circular Cylinder in Crossflow,” J. Heat Transfer, 99:300-306. 1977.
Churchill, S.W. and H. H. S. Chu. “Correlating Equations for Laminar and Turbulent Free Convection From a Horizontal Cylinder,” International Journal of Heat And Mass Transfer, 18:1049-1053. 1975.
Coleman, H. W. and Steller, W. G. “Experimentation and Uncertainty Analysis for Engineers,” 2nd Ed., John Wiley and Sons, New York, pp. 47-64 (1999).
Fand, R. M. and K. K. Keswani. “A Continuous Correlation Equation for Heat Transfer from Cylinders to Air in Crossflow for Reynold’s Numbers from 10-2 to 2(10)5,” International Journal of Heat and Mass Transfer, 15:559-562. 1972.
Fand, R.M. and K. K. Keswani. “Recalculation of Hilpert’s Constants,” Transactions of ASME, pp. 224-226. 1973.
Hilpert, R. “Heat Transfer from Cylinders,” Forsch. Geb. Ingenieurwes, 4:215. 1933.
Incropera F. and D. De Witt. Fundamentals of Heat and Mass Transfer, 5th Edition, USA. 2002.
Jisheng Li and J. Tarasuk. “Local Free Convection Around Inclined Cylinders in Air: An Interferometric Study,” Experimental Thermal and Fluid Science, 5:235-242. 1992.
Manohar, K., Yarbrough, D. W. and Booth, J. R. “Measurement of Apparent Thermal Conductivity by the Thermal Probe Method,” Journal of Testing and Evaluation, 28(5):345-351. 2000.
Morgan, V. “Heat Transfer from Cylinders,” Advances in Heat Transfer, 11:199-264. 1987.
Zukauskas, A. “Heat Transfer From Tubes in Crossflow,” Advances in Heat Transfer, 8:87-159. 1987.
Dr. Krishpersad Manohar
- India
Associate Professor Kimberly Ramroop
- India

View all special issues >>