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http://dx.doi.org/10.6112/kscfe.2013.18.4.069

COMPUTATIONAL STUDY OF GLASS FIBER DRAWING PROCESS IN A DRAW FURNACE OF OPTICAL FIBER MASS MANUFACTURING SYSTEM  

Kim, K. (Dept. of Mechanical System Engineering, Kumoh National Institute of Technology)
Kwak, H.S. (Dept. of Mechanical System Engineering, Kumoh National Institute of Technology)
Kim, D. (Dept. of Mechanical Engineering, Kumoh National Institute of Technology)
Publication Information
Journal of computational fluids engineering / v.18, no.4, 2013 , pp. 69-73 More about this Journal
Abstract
Mass manufacturing of optical fiber includes the process of very thin glass fiber drawing by heating and softening the high purity silica preform and applying the draw tension on the softened tip of preform neck-down profile in a draw furnace. In this computational study, this process is numerically modeled with simplified geometry of the draw furnace which is comprised of essential parts such as concentric graphite heater, muffle tube, and insulation surrounding the heater. The iterative computational scheme is employed between one-dimensional model of neck-down profile prediction and two-dimensional axisymmetric thermo-fluid CFD computation of radiative heating and working gas convection. The computational results show the experimentally observed neck-down profile in heated section of preform, while yielding the reasonable values of draw tension and heater wattage. Also, this study analyzes and discusses the effects of heating conditions such as heater length and temperature on several important aspects of glass fiber drawing process.
Keywords
Optical Fiber Manufacturing; Draw Furnace; Glass Fiber Drawing; Silica Preform; CFD;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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