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TECHNICAL PAPERS: Forced Convection

Heat Transfer and Pressure Drop Characteristics of Laminar Flow Through a Circular Tube With Longitudinal Strip Inserts Under Uniform Wall Heat Flux

[+] Author and Article Information
S. K. Saha

Mechanical Engineering Department, Bengal Engineering College, Deemed University, Howrah 711 103, West Bengal, Indiae-mail: sujoy_k_saha@hotmail.com

P. Langille

Department of Mechanical Engineering, Dalhousie University, Halifax, Nova Scotia, B3J 2X4, Canadae-mail: ocean_wave_13@hotmail.com

J. Heat Transfer 124(3), 421-432 (May 10, 2002) (12 pages) doi:10.1115/1.1423907 History: Received May 04, 2001; Revised October 01, 2001; Online May 10, 2002
Copyright © 2002 by ASME
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References

Chen,  J. D., and Hsieh,  S. S., 1992, “Buoyancy Effect on the Laminar Forced Convection in a Horizontal Tube With a Longitudinal Plate Insert,” Int. J. Heat Mass Transf., 35, pp. 263–267.
Solanki, S. C., Saini, J. S., and Gupta, C. P., 1985, “An Experimental Investigation of Fully Developed Laminar Flow in a Non-Circular Annulus,” Proc., 8th Nat. Conf. on Heat Mass Transfer, HMTA 34-85, Vishakhapatnam, IN.
Solanki,  S. C., Prakash,  S., Saini,  J. S., and Gupta,  C. P., 1987, “Forced Convection Heat Transfer in Doubly Connected Ducts,” Int. J. Heat Fluid Flow, 8, pp. 107–110.
Chen,  J. D., and Hsieh,  S. S., 1991, “Assessment Study of Longitudinal Rectangular Plate Inserts as Tubeside Heat Transfer Augmentative Device,” Int. J. Heat Mass Transf., 34, pp. 2545–2553.
Hsieh,  S. S., and Wen,  M. Y., 1996, “Developing Three-Dimensional Laminar Mixed Convection in a Circular Tube Inserted With Longitudinal Strips,” Int. J. Heat Mass Transf., 39, pp. 299–310.
Hsieh,  S. S., and Huang,  I. W., 2000, “Heat Transfer and Pressure Drop on Laminar Flow in Horizontal Tubes With/Without Longitudinal Inserts,” ASME J. Heat Transfer, 122, pp. 465–475.
Saha,  S. K., and Dutta,  A., 2001, “Thermohydraulic Study of Laminar Swirl Flow Through a Circular Tube Fitted With Twisted Tapes,” ASME J. Heat Transfer, 123, No. 3, pp. 417–427.
Saha,  S. K., Gaitonde,  U. N., and Date,  A. W., 1989, “Heat Transfer and Pressure Drop Characteristics of Laminar Flow in a Circular Tube Fitted With Regularly-Spaced Twisted-Tape Elements,” Exp. Therm. Fluid Sci., 2, pp. 310–322.
Hong,  S. W., and Bergles,  A. E., 1976, “Augmentation of Laminar Flow Heat Transfer in Tubes by Means of Twisted-Tape Inserts,” ASME J. Heat Transfer, 98, pp. 251–256.
Marner,  W. J., Bergles,  A. E., and Chenoweth,  J. M., 1983, “On the Presentation of Performance Data for Enhanced Tubes Used in Shell-and-Tube Heat Exchangers,” ASME J. Heat Transfer, 105, pp. 358–365.
Kline,  S. J., and McClintock,  F. A., 1953, “Describing Uncertainties in Single Sample Experiments,” Mech. Eng. (Am. Soc. Mech. Eng.), 75, pp. 3–8.
Bergles, A. E., Blumenkrantz, A. R., and Taborek, J., 1974, “Performance Evaluation Criteria for Enhanced Heat Transfer Surfaces,” Paper FC 6.3, Proc. 5th Int. Heat Transfer Conf., Tokyo, Vol. 2, pp. 239–243.
Date,  A. W., and Saha,  S. K., 1990, “Numerical Prediction of Laminar Flow and Heat Transfer Characteristics in a Tube Fitted With Regularly-Spaced Twisted-Tape Elements,” Int. J. Heat Fluid Flow, 11, pp. 346–354.

Figures

Grahic Jump Location
The geometry and dimensions of the inserts used in this study
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Heat transfer test section
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Variation of friction factor with Reynolds number for short-length strips: (a) cross strip; Aspect ratio 4; (b) longitudinal strip (aspect ratio 4); and (c) longitudinal strip (aspect ratio 1)
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Comparison of experimental friction factor with that predicted from Eq. (7) for short-length strips
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Variation of Nusselt number with Graetz number for short-length strips: (a) cross strip (aspect ratio 4); (b) longitudinal strip (aspect ratio 4) and (c) longitudinal strip (aspect ratio 1)
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Comparison of experimental Nusselt number with that predicted from Eq. (8) for short-length strips
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Variation of friction factor with Reynolds number for regularly-spaced strip elements—cross strip (aspect ratio 4): (a) y=2.5,s=5; (b) y=2.5,s=2.5; (c) y=5,s=5; and (d) y=5,s=2.5
Grahic Jump Location
Variation of friction factor with Reynolds number for regularly-spaced strip elements—longitudinal strip (aspect ratio 4): (a) y=2.5,s=5; (b) y=2.5,s=2.5; (c) y=5,s=5; and (d) y=5,s=2.5
Grahic Jump Location
Variation of friction factor with Reynolds number for regularly-spaced strip elements—longitudinal strip (aspect ratio 1): (a) y=2.5,s=5; (b) y=2.5,s=2.5; (c) y=5,s=5; and (d) y=5,s=2.5
Grahic Jump Location
Comparison of experimental friction factor with that predicted from Eq. (9) for regularly-spaced strip elements
Grahic Jump Location
Variation of Nusselt number with Graetz number for regularly-spaced strip elements—cross strip (aspect ratio 4): (a) y=2.5,s=2.5; and (b) y=5,s=5
Grahic Jump Location
Variation of Nusselt number with Graetz number for regularly-spaced strip elements—longitudinal strip (aspect ratio 4): (a) y=2.5,s=2.5; and (b) y=5,s=5
Grahic Jump Location
Variation of Nusselt number with Graetz number for regularly-spaced strip elements—longitudinal strip (aspect ratio 1): (a) y=2.5,s=2.5; and (b) y=5,s=5
Grahic Jump Location
Comparison of experimental Nusselt number with that predicted from Eq. (10) for regularly-spaced strip elements

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