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TECHNICAL PAPERS

Analysis of Heat Transfer Between the Gas Torch and the Plate For the Application of Line Heating

[+] Author and Article Information
Jong Gye Shin

Dept. of Naval Architecture and Ocean Engineering, Research Institute of Marine Systems Engineering, Seoul National University, Seoul, 151-744 Korea

Jong Hun Woo

Dept. of Naval Architecture and Ocean Engineering, Seoul National University, Seoul, 151-744 Korea

J. Manuf. Sci. Eng 125(4), 794-800 (Nov 11, 2003) (7 pages) doi:10.1115/1.1616949 History: Received April 01, 2002; Revised April 01, 2003; Online November 11, 2003
Copyright © 2003 by ASME
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References

Shin,  J. G., and Moshaiov,  A., 1991, “Modified Strip Model for Analyzing the Line Heating Method-Part 1: Elastic Plates,” J. Ship Res., 35(2), pp. 172–182.
Ueda,  Y., Murakawa,  H., Rashwan,  A. M., Neki,  I., Kamachika,  R., Ishiyama,  M., and Ogawa,  J., 1993, “Development of Computer Aided Process for Plate Bending by Line-Heating (3rd Report) Relation Between Heating Condition and Deformations,” Journal of the Society of Naval Architects of Japan, 173, pp. 409–418.
Shin, J. G., and Lee, J. H., 2000, “Non-Dimensionalized Relationship Between Heating Conditions and Final Deformations in Line Heating Process,” submitted to the J. Ship Res.
Moshaiov,  A., and Latorre,  R., 1985, “Temperature Distribution During Plate Bending by Torch Flame Heating,” J. Ship Res., 29(1), pp. 1–11.
Tomita,  Y., Hasimoto,  K., Osawa,  N., Fukuda,  Y., Kozuki,  Y., and Wakita,  H., 1995, “Studies on the Expert System of Bending Work Using Line Heating,” Journal of Kansai Society of Naval Architects, Japan, 224, pp. 121–130.
White, F. M., 1999, Viscous Fluid Flow, 2nd Edition, McGraw Hill, N.Y.
Kakac, S., and Yener, Y., 1995, Convective Heat Transfer, 2nd edition, CRC Press, Inc, Florida 33431.
Reddy, J. N., and Gartling, D. K., 1994, The Finite Element Method in Heat Transfer and Fluid Dynamics, CRC Press, Ann Arbor, Michigan, Chap. 8.
Launder,  B. E., and Spalding,  D. B., 1974, “The Numerical Computation of Turbulent Flows,” Comput. Methods Appl. Mech. Eng., 3, pp. 269–289.
Martin,  H., 1977, “Heat and Mass Transfer Between Impinging Gas Jets and Solid Surfaces,” J. P. Hartnett and T. F. Irvine, Jr., Eds., Adv. Heat Transfer, 13 , Academic Press, N.Y.
Siegel, R., and Howell, J. R., 1992, Thermal Radiation Heat Transfer, 3rd edition, Hemisphere Publishing Corporation, London, UK.

Figures

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Assumption of the problem domain
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(a) Problem domain, (b) Element meshing
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Material properties of fluid
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Convergence time for steady state flow
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(a) Velocity field (m/s) (b) Temperature field (K) at t=1.0 (sec)
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(a) Nusselt number (b) Heat convective coefficient
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Procedure of conduction analysis
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Temperature field (K) of the plate at t=1 (sec)
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Comparison between the Gauss heat flux distribution and the history of the heat flux of this paper
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Experimental setup, (a) Insulation setup for preventing heat loss (b) Heating from the torch to the steel plate (c) Thermo couple attached to the bottom of the steel plate
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Comparison (a) between the results of the experiments and the finite element method results by Gaussian heat flux (b) between the results of the experiments and the finite element method results by this paper at fixed time (c) between the results of the experiments and the finite element method results by this paper at fixed location (r: distance from the heating center to the radial direction, z: depth from the surface of the steel plate, −9 mm is the bottom surface of the steel plate)

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