Environmentally friendly scheduling for primary steelmaking processes = 철강공정에 대한 환경 친화적 일정계획

The scheduling problem in steel plants has been recognized as one of the most difficult industrial scheduling problems. Moreover, the steel industry is also known to be a highly environment-intensive industry. In order to deal with two problems simultaneously, we present a multiobjective short-term scheduling model for the operation in primary steelmaking processes. The objectives of the proposed multiobjective MILP model are to maximize the total profit and to minimize the environmental impacts relevant to the steelmaking processes. The optimization result shows a trade-off between environmental and economic aspects and the decision maker can select any solution among the Pareto solutions considering these aspects simultaneously.