Title: Multiobjective optimisation for environment-related decision making in paper mill processes

Authors: Mijin Park, Dongwoon Kim, Daeho Ko, I. Moon, Yeong-koo Yeo

Addresses: Department of Chemical Engineering, Yonsei University, Seoul 120-749, Korea. ' Department of Chemical Engineering, Yonsei University, Seoul 120-749, Korea. ' CAE team, Samsung SDI, 428-5, Gongse-Dong, Giheung-gu, Yongin-si, Gyeonggi-do, 446-577, Korea. ' Department of Chemical Engineering, Yonsei University, Seoul 120-749, Korea. ' Department of Chemical Engineering, Hanyang University, Seoul 133-791, Korea

Abstract: Considering only environmental impact or only profit is not enough to manage chemical processes. This study focuses on the optimal scheduling of cutting papers using the multiobjective optimisation programming. Two independent objective functions are introduced in this paper, the production cost and trim loss with the constraints of satisfying the customer orders. The Goal Constrained Programming (GCP) algorithm is created for the multiobjective optimisation with priority. The proposed algorithm takes the deviation for the weighting factor. The GCP provides various optimal schedule sets satisfying the economic and environmental requirements.

Keywords: decision making; environment friendly operations; goal constrained programming; GCP; multiobjective optimisation; trim loss problem; paper mills; pollution prevention; environmental pollution; chemical processes; optimal scheduling; paper cutting.

DOI: 10.1504/IJEP.2007.012800

International Journal of Environment and Pollution, 2007 Vol.29 No.1/2/3, pp.127 - 143

Published online: 15 Mar 2007 *

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