Optimal facility layout under toxic release in process facilities: A stochastic approach
Optimal facility layout under toxic release in process facilities: A stochastic approach
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DOI：
10.1016/j.compchemeng.2009.08.001
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发表时间：
2010-01
期刊：
影响因子：
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通讯作者：
R. Vázquez-Román;Jin-Han Lee;Seungho Jung;M. Mannan
中科院分区：
文献类型：
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作者：
R. Vázquez-Román;Jin-Han Lee;Seungho Jung;M. Mannan
本文提出了一种考虑已安装设施中有毒物质释放不确定性的最优设施选址方法。提出的公式综合考虑风速、风向和大气稳定性的影响，通过probit函数和蒙特卡罗模拟计算死亡风险。整个问题最初被建模为一个析取程序，其中每个新设施的笛卡尔坐标用于选址和成本相关变量是确定的主要未知数。然后，利用凸包法将该问题重新表述为混合整数非线性规划。在一个案例研究中，发现了多个最优布局，说明了数值计算的困难。总的来说，数值结果表明了这种方法在改进工艺布置设计活动方面的潜力。
This paper presents a new approach for the optimal facility siting considering the uncertainty of toxic release in one of the installed facilities. The proposed formulation incorporates the effect of wind speed, wind direction and atmospheric stability to calculate the risk of death via probit functions and Monte Carlo simulation. The overall problem is initially modeled as a disjunctive program where the Cartesian coordinates of each new facility for siting and cost-related variables are the main unknowns to determine. Then, the convex hull approach is used to reformulate the problem as a mixed integer nonlinear program (MINLP). The numerical difficulties are shown in a case study where multiple optimal layouts have been found. In general, the numerical results demonstrate the potential of this approach to improve the process layout design activity.