A Goal Programming Optimization Model for The Allocation of Liquid Steel Production

4th Asia Pacific Conference on Manufacturing Systems; 3rd International Manufacturing Engineering Conference

Hapsari, S.N.^1 ; Rosyidi, C.N.^1

Department of Industrial Engineering, Sebelas Maret University, Indonesia^1

关键词: Electric arc furnace;    Liquid steel production;    Maintenance cost;    Optimal allocation;    Optimization modeling;    Production capacity;    Production process;    Production units;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/319/1/012021/pdf
DOI  :  10.1088/1757-899X/319/1/012021

来源: IOP

【 摘 要 】

This research was conducted in one of the largest steel companies in Indonesia which has several production units and produces a wide range of steel products. One of the important products in the company is billet steel. The company has four Electric Arc Furnace (EAF) which produces liquid steel which must be procesed further to be billet steel. The billet steel plant needs to make their production process more efficient to increase the productvity. The management has four goals to be achieved and hence the optimal allocation of the liquid steel production is needed to achieve those goals. In this paper, a goal programming optimization model is developed to determine optimal allocation of liquid steel production in each EAF, to satisfy demand in 3 periods and the company goals, namely maximizing the volume of production, minimizing the cost of raw materials, minimizing maintenance costs, maximizing sales revenues, and maximizing production capacity. From the results of optimization, only maximizing production capacity goal can not achieve the target. However, the model developed in this papare can optimally allocate liquid steel so the allocation of production does not exceed the maximum capacity of the machine work hours and maximum production capacity.