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 (R2 ≥ 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.
Highlights
Thin Film Transistor Liquid Crystal Display (TFT-LCD) panel manufacturers are numbered among the most energy-intensive and high capital investment industrial groups [1]
This paper presents the establishment of the energy management system at a Generation 6 TFT-LCD
TFT-LCD manufacturing consists of production processes for array, color filter, cell and module, TFT-LCD manufacturing consists of production processes for array, color filter, cell and as well as the facility systems for water treatment, compressed dry air, chiller, cleanroom ventilation module, as well as the facility systems for water treatment, compressed dry air, chiller, cleanroom and public utility
Summary
Thin Film Transistor Liquid Crystal Display (TFT-LCD) panel manufacturers are numbered among the most energy-intensive and high capital investment industrial groups [1]. The panel manufacturing industry faces intense competition from companies both locally and internationally due to the saturation of the market. Electricity is the major energy consumed by TFT-LCD industries, the electricity conservation policy of a company is key to the enhancement of its competitiveness [2,3]. More than 97% of Taiwan’s energy resources are importation dependent and most consumption is from industrial activities [5,6]. As the fairness of the electricity subsidies’ policy of the Taiwanese government is questioned by different industrial sectors, energy users whose electricity consumption reaches a stipulated level are required to establish an energy audit system, as well
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
