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The Evaluation of Energy Conservation Performance on Electricity: A Case Study of the TFT-LCD Optronics Industry

Author

Listed:
  • Ven-Shing Wang

    (Department of Occupational Safety and Health, China Medical University, 91 Hsueh-Shih Rd., Taichung 40402, Taiwan)

  • Cheng-Fong Sie

    (Department of Occupational Safety and Health, China Medical University, 91 Hsueh-Shih Rd., Taichung 40402, Taiwan)

  • Ta-Yuan Chang

    (Department of Occupational Safety and Health, China Medical University, 91 Hsueh-Shih Rd., Taichung 40402, Taiwan)

  • Keh-Ping Chao

    (Department of Occupational Safety and Health, China Medical University, 91 Hsueh-Shih Rd., Taichung 40402, Taiwan)

Abstract

This study describes the performance evaluation of an energy management system, based on electricity consumption, for a Gen 6 Thin Film Transistor Liquid Crystal Display (TFT-LCD) panel plant. Of the various production lines and facility systems, the array system and the compressed dry air consumed the most electricity of 21.8% and 19.8%, respectively, while the public utility used only 1.6% of the total electricity. The baseline electricity consumptions were correlated well ( R 2 ≥ 0.77) to the monthly average wet-bulb temperatures of ambient air and the panel yield rates, which were determined by the product yield over the equipment available time index. After implementing the energy saving projects, the energy conservation performance was determined using a three-parameter change-point regression model incorporated with the panel yield rates. The post-retrofit monthly savings of the total electricity consumption for the panel manufacture were 5.35%–10.36%, with the efficiency of the electricity performance revealing an upswing trend following the implementation of the energy management system.

Suggested Citation

  • Ven-Shing Wang & Cheng-Fong Sie & Ta-Yuan Chang & Keh-Ping Chao, 2016. "The Evaluation of Energy Conservation Performance on Electricity: A Case Study of the TFT-LCD Optronics Industry," Energies, MDPI, vol. 9(3), pages 1-12, March.
    • Handle: RePEc:gam:jeners:v:9:y:2016:i:3:p:206-:d:65953
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    References listed on IDEAS

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    1. Cheng-Kuang Chang & Tee Lin & Shih-Cheng Hu & Ben-Ran Fu & Jung-Sheng Hsu, 2016. "Various Energy-Saving Approaches to a TFT-LCD Panel Fab," Sustainability, MDPI, vol. 8(9), pages 1-10, September.

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