Korean Journal of Air-Conditioning and Refrigeration Engineering (설비공학논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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Prediction of Heat-Up Time of the Glass Plate by IR Heaters in an LCD-Panel Cleaning Process

LCD 패널 세척공정에서 원적외선 히터에 의한 유리기판 승온시간 예측

  • Kim, Yun-Ho (Dept. of Mechanical & Information Engineering, University of Seoul) ;
  • Ji, Tae-Ho (Dept of Mechanical Engineering, Korea Advanced Institute of Science and Technology) ;
  • Kim, Seo-Young (Thermal/Flow Control Research Center, Korea Institute of Science & Technology) ;
  • Rhee, Gwang-Hoon (Dept. of Mechanical & Information Engineering, University of Seoul)
  • 김윤호 (서울시립대학교 기계정보공학과) ;
  • 지태호 (한국과학기술원 기계공학과) ;
  • 김서영 (한국과학기술연구원 열유동제어연구센터) ;
  • 리광훈 (서울시립대학교 기계정보공학과)
  • Published : 2006.06.01
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Abstract

The prediction of heat-up time of an LCD glass plate in LCD glass pre-treatment process has been implemented in the present study. Firstly, the analytical solution for one-dimensional radiation heat transfer from IR heaters to a LCD glass plate is obtained. When the surface temperature of the IR heaters is set at 473 K, the heat-up time of LCD glass to averaged temperature of 383K is 28 seconds. In addition, a three dimensional full CFD analysis using STAR-CD is implemented in an effort to consider the effect of 3-D heat loss through the furnace walls. From the results of the 3-D CFB analysis, the heat-up time increases up to 32.5 seconds under the same conditions. When the IR heater temperature in creases up to 573 K, the heat-up time decreases to 12 seconds for the one-dimensional analytical solution and to 13.5 seconds for the 3-D CFD analysis, respectively.

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References

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