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Heat Transfer and Friction Characteristics of Turbulator Radiator Tubes
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English
Abstract
This study examines the friction and heat transfer characteristics of water flow in internally roughened rectangular ducts. The low aspect ratio ducts have two- or three-dimensional roughness formed into the two wide dimensions of the tube wall. The ducts considered are representative of turbulator tube geometries used in low flow automotive heat radiators.
Isothermal friction data were taken for Reynolds numbers, based on hydraulic diameter, in the range 200 to 11,000. The friction factor was measured for six rough tubes and a smooth tube. Heat transfer data were taken for one smooth and three rough tubes. Data were taken for Reynolds numbers between 3,000 and 10,000. A modified Wilson plot technique was used to reduce the heat transfer data. The heat transfer and friction characteristics of the turbulator tubes are compared to those of standard, plain tubes.
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Authors
- Paul Farrell - Dept. of Mechanical Engineering, The Pennsylvania State University, University Park, PA
- Kevin Wert - Dept. of Mechanical Engineering, The Pennsylvania State University, University Park, PA
- Ralph Webb - Dept. of Mechanical Engineering, The Pennsylvania State University, University Park, PA
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Citation
Farrell, P., Wert, K., and Webb, R., "Heat Transfer and Friction Characteristics of Turbulator Radiator Tubes," SAE Technical Paper 910197, 1991, https://doi.org/10.4271/910197.Also In
References
- Briggs, D. E. Young, E. H. Modified Wilson Plot Techniques for Obtaining Heat Transfer Correlations for Shell and Tube Heat Exchangers Chem. Eng. Progr. Symp. Ser. 92 65 35 45 1969
- Burgraff, F. Experimental Heat Transfer and Pressure Drop with Two-Dimensional Turbulence Promoter Applied to Two Opposite Walls of a Square Tube Augmentation of Convective Heat and Mass Transfer Bergles A. E. Webb R. L. ASME New York 70 79 1970
- Fox, R. W. McDonald, A. T. Introduction to Fluid Mechanics John Wiley and Sons, Inc. New York Third 332 1985
- Han, J. C. Heat Transfer and Friction Characteristics in Rectangular Channels with Rib Turbulators ASME J. Heat Transfer 110 321 328 1988
- Han, J. C. Heat Transfer and Friction in Channels with Two Opposite Rib-Roughened Walls ASME J. Heat Transfer 106 774 781 1984
- Han, J. C. Glicksman, L. R. Rohsenhow, W. M. An Investigation of Heat Transfer and Friction for Rib-Roughened Surfaces Int. J. Heat Mass Transfer 21 1143 1156 1978
- Han, J. C. Lei, C. K. Heat Transfer and Friction in Square Ducts with Two Opposite Rib-Roughened Walls ASME J. Heat Transfer 26 1 8 1983
- Han, J. C. Ou, S. Park, J. S. Lei, C. K. Augmented Heat Transfer in Rectangular Channels of Narrow Aspect Ratios with Rib Turbulators Int. J. Heat Mass Transfer 32 1619 1630 1989
- Holman, J. P. Heat Transfer McGraw-Hill, Inc New York, NY. Seventh 287 1990
- Hufschmidt, W. Burck, E. Int. J. Heat Mass Transfer 41 1041 1048 1968
- Jones, O. C. An Improvement in the Calculation of Turbulent Friction in Rectangular Ducts ASME J. Fluids Engineering , Transactions of the ASME June 173 181 1976
- Kays, W. M. London, A. L. Compact Heat Exchangers 3rd McGraw-Hill New York 112 1984
- Schlunder, E. Heat Exchanger Design Handbook 2 Hemisphere Publishing New York 1982
- Shah, R. K. London, A. L. Advances in Heat Transfer: Laminar Flow Forced Convection in Ducts Academic Press New York 199 1978
- Sieder, E.N. Tate, G.E. Ind. Eng. Chem. 28 1429 1936
- Webb, R. L. “Toward a Common Understanding of Performance and Selection of Roughness for Forced Convection” Studies in Heat Transfer: A Festschrift for E. R. G. Eckert Irvine T. et al. 247 252 Hemisphere, Washington D. C. 1979
- Webb, R. L. Performance Evaluation Criteria for Use of Enhanced Heat Transfer Surfaces in Heat Exchanger Design Int. J. Heat Mass Transfer 24 715 726 1981
- Webb, R.L. “Enhancement of Single-Phase Heat Transfer,” Handbook of Single-Phase Heat Transfer Kakac S. Shah R. K. Aung W. John Wiley & Sons 62 1988