Because of the increasing panel size, the difficulty on delivering the glass substrate has been enhanced dramatically and become a critical problem in the LCD manufacturing industry. Nowadays, most of panel fabrication factory utilize the fully-automated delivering technology instead of the traditional labor delivery for diminishing the possibility of polluted particles on the LCD board. Thus, this study investigates the flow patterns on maintaining the air quality inside the delivering facility with a moving elevator. Also, influence on the moving pattern of the elevator via numerical technique is the focus of this investigation. Firstly, CFD code Fluent is used to execute the CFD simulation and evaluate the flow patterns inside this delivery equipment. It is found that the inferior air is generated mainly by the increasing vortex inside the delivery equipment for an upward-moving elevator. On the contrary, the flow field becomes very smooth without obvious vortex phenomenon, and thus induces a better air quality when the elevator moves downward. However, a better uniform flow field occurred when the elevator is moving upward. In addition, the airflow uniformity is not effectively improved by reducing the elevator velocity and increasing the FFU airflow velocity. It is not evident for improving the pollute exclusion by reducing elevator moving velocity which slows down the transporting efficiency, so it is suggested that the moving speed of elevator should maintain at 0.16m/s. On another way, it is useful to enhance the capability of pollute exclusion by increasing the FFU’s air velocity, thus it is proposed to raise FFU velocity to 0.71m/s. Consequently, it is concluded that the moving pattern of elevator has an essential impact and can be utilized to improve the air quality inside the LCD delivery facility.
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ASME 2012 11th Biennial Conference on Engineering Systems Design and Analysis
July 2–4, 2012
Nantes, France
Conference Sponsors:
- International
ISBN:
978-0-7918-4485-4
PROCEEDINGS PAPER
Influence of Elevator Moving Pattern on the Contaminant Exclusion for an LCD Panel Delivery Facility
Sheam-Chyun Lin,
Sheam-Chyun Lin
National Taiwan University of Science and Technology, Taipei, Taiwan
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Cheng-Ju Chang,
Cheng-Ju Chang
National Taiwan University of Science and Technology, Taipei, Taiwan
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Hsien-Chang Shih,
Hsien-Chang Shih
National Taiwan University of Science and Technology, Taipei, Taiwan
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You-Min Huang,
You-Min Huang
National Taiwan University of Science and Technology, Taipei, Taiwan
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Chao-Chang Chen,
Chao-Chang Chen
National Taiwan University of Science and Technology, Taipei, Taiwan
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Yu-Shan Luo
Yu-Shan Luo
Tungnan University, Taipei, Taiwan
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Sheam-Chyun Lin
National Taiwan University of Science and Technology, Taipei, Taiwan
Cheng-Ju Chang
National Taiwan University of Science and Technology, Taipei, Taiwan
Hsien-Chang Shih
National Taiwan University of Science and Technology, Taipei, Taiwan
You-Min Huang
National Taiwan University of Science and Technology, Taipei, Taiwan
Chao-Chang Chen
National Taiwan University of Science and Technology, Taipei, Taiwan
Yu-Shan Luo
Tungnan University, Taipei, Taiwan
Paper No:
ESDA2012-82119, pp. 43-50; 8 pages
Published Online:
August 12, 2013
Citation
Lin, S, Chang, C, Shih, H, Huang, Y, Chen, C, & Luo, Y. "Influence of Elevator Moving Pattern on the Contaminant Exclusion for an LCD Panel Delivery Facility." Proceedings of the ASME 2012 11th Biennial Conference on Engineering Systems Design and Analysis. Volume 2: Applied Fluid Mechanics; Electromechanical Systems and Mechatronics; Advanced Energy Systems; Thermal Engineering; Human Factors and Cognitive Engineering. Nantes, France. July 2–4, 2012. pp. 43-50. ASME. https://doi.org/10.1115/ESDA2012-82119
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