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텐터기 노즐 분사각의 최적설계를 위한 수치해석적 연구

A Numerical Study for Design Optimization of Nozzle Injection Angle in Tenter Machine

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A tenter is very important to dry and heat-set fabrics in textile dyeing and finishing industry. However, the tenter machine typically utilizes more than 80% of all the power in dyeing system, and yet is one of the primary machine which affects quality of fabrics. Therefore, performance optimization of the tenter machine is required to reduce energy consumption and enhance quality of fabrics. To optimize the tenter machine, it is important to maintain the uniform flow rate, which can be obtained by optimizing a nozzle geometry. In this study, emboss hole angle was investigated as main parameter in flow rate uniformity and heat flux efficiency. The analysis results were compared with those acquired from bench-scale dryer test in the laboratory. The tenter machine performance simulated by Computational Fluid Dynamics(CFD) was optimized by controlling emboss hole angle.

Abstract

A tenter is very important to dry and heat-set fabrics in textile dyeing and finishing industry. However, the tenter machine typically utilizes more than 80% of all the power in dyeing system, and yet is one of the primary machine which affects quality of fabrics. Therefore, performance optimization of the tenter machine is required to reduce energy consumption and enhance quality of fabrics. To optimize the tenter machine, it is important to maintain the uniform flow rate, which can be obtained by optimizing a nozzle geometry. In this study, emboss hole angle was investigated as main parameter in flow rate uniformity and heat flux efficiency. The analysis results were compared with those acquired from bench-scale dryer test in the laboratory. The tenter machine performance simulated by Computational Fluid Dynamics(CFD) was optimized by controlling emboss hole angle.

참고문헌 (10)

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  2. D. W. Lyons, "The Drying of Fibrous Materials", Textile Research J., 41, pp.661~ (1971)
  3. J. N. Beard, "More Efficient Tenter Frame Oper ations Through Mathematical Modeling", Textile Chemist and Colorist, 8(3), pp.47~ (1976)
  4. S. I. Park, "Heat and Mass Transfer Analysis of Fabric in the Tenter Frame", Textile Research J., 67(5), pp.311~ (1997)
  5. A. H. Nissan, "Heat and Mass Ttransfer Transients in Cylinder Drying: Part I. Unfelted Cyclinders", American Institute of Chemical Engineers, 6(4), pp.611~ (1960)
  6. A. C. Dreshfield, "The Drying of Paper", TAPPI, 39, pp.449~ (1956)
  7. H. V. Linden, "Andwendung der Schallstromung von Gasen und Dampfen in der Textilveredlung", Melliand Textilberichte, 57, pp.53~ (1976)
  8. R. S. Gregorian, "Comparison of Chemical and Physical Properties of Conventionally and Foam Finished Fabrics", Textile Chemist and Colorist, 16(12), pp.213~ (1984)
  9. M. Juraeva, "A Design Study of an Air-twist Nozzle by Analysis of Fluid Flow", Textile Research J., 80(15), pp.1616~ (2010)
  10. ANSYS Workbench, "CFX-Pre, CFX-Solver, CFXPost, Version 2005 User's Manual", ~ (2005)

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