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Optimum design of the injection duct system of a stenter machine

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Abstract

Stenter machines are used for drying fabrics in the textile industry and have a heater, injection duct system, and fans inside a chamber. The injection duct system has ducts and air-injecting holes. Plane-type injection duct systems were investigated to obtain uniform airflow at the air-injecting holes. The flowfield of the injection duct systems was computed using ANSYS CFX with different heights of the duct end and different shapes for the air-injecting holes. There was a high mass flow rate at the air-injecting holes and high airflow circulation inside both plane-type and mountain-type ducts at the ends. The height of the duct end was varied between 40 mm and 160 mm. The injection duct systems were analyzed with four different shapes of air-injecting holes. The circular and elliptical holes had lower standard deviations of the mass flow rate than other shapes. Relatively uniform mass flow rates were obtained in the plane-type and mountain-type duct systems when the height of the duct end was 40 mm and the shape of the air-injecting holes was circular or elliptical. The developed injection duct systems were improved by obtaining a uniform mass flow rate at the air-injecting holes. A stenter prototype was fabricated with the developed injection duct system to confirm the numerical results. The developed injection duct system had better performance than the original system.

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Authors and Affiliations

  1. School of Mechanical Engineering, Yeungnam University, Geyongsan-si, 712-749, Korea

    Makhsuda Juraeva & Dong Joo Song

  2. Division of Automotive Engineering, Ajou Motor College, Boryeong-si, Korea

    Kyung Jin Ryu

Authors
  1. Makhsuda Juraeva
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  2. Kyung Jin Ryu
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  3. Dong Joo Song
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Corresponding author

Correspondence to Dong Joo Song.

Additional information

Both authors contributed equally to this work as co-first author.

Recommended by Associate Editor Donghyun You

Dong Joo Song is a Professor of School of Mechanical Engineering, Yeungnam University, Gyeongsan, Korea. He received his doctor degree in aerospace engineering from Virginia Tech.

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Juraeva, M., Ryu, K.J. & Song, D.J. Optimum design of the injection duct system of a stenter machine. J Mech Sci Technol 31, 2279–2285 (2017). https://doi.org/10.1007/s12206-017-0424-6

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  • DOI: https://doi.org/10.1007/s12206-017-0424-6

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