Hybrid Compressor Model for Optimal Operation of CDA System
نویسندگان
چکیده
CDA(Compressed Dry Air) is an essential utility to be used in a variety of processes in LCD(Liquid Crystal Display) production industry. Since the demands for CDA fluctuate largely from moment to moment, it is common to supply compressed air with a number of small-capacity compressors rather than few large-capacity ones. In order to meet the varying demands, operation conditions of compressors change at every second and hence the efficiency of compressors is low. To find optimal operating strategy of such compressor network, first a hybrid modeling technique of ideal model and empirical model is developed to predict efficiency and power consumption of each compressor in the network. Then, optimization procedure is applied to search optimal operation strategy. The proposed method was applied to actual off-line data of LCD production industry and about 5% of annual power consumption was saved by optimization.
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