화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.18, No.4, 442-450, July, 2001
DOI10.1007/BF02698288  Export Citation
The Integration of Complete Replanning and Rule-Based Repairing for Optimal Operation of Utility Plants
Heui-Seok Yi, and Chonghun Han1, †
  • School of Environmental Science and Engineering, POSTECH, San 31, Hyoja-Dong, Pohang, Kyungbuk 790-784, Korea
  • 1Department of Chemical Engineering, POSTECH, San 31, Hyoja-Dong, Pohang, Kyungbuk 790-784, Korea
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The integration methodology of complete replanning and plan repairing is proposed to handle the prediction errors for energy demands during multiperiod operational planning. Complete replanning is implemented periodically and plan repairing is triggered during the execution interval. The plan repairing is constructed by a rule-based system because of real-time limitations. The efficiency index of a utility pump is introduced to determine startup/shutdown of equipment without integer programming in plan repairing. Case studies show that the proposed method is more profitable than the conventional replanning method. The total operating costs are reduced by 0.3-9.0% compared with the conventional replanning method.
Keywords:Multiperiod Operational Planning;Prediction Error;Plan Repairing;Replanning;Rule-based System
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