Optimal facility layout under toxic release in process facilities: A stochastic approach

A grid-based facilities allocation approach with safety and optimal heat exchanger networks synthesis

“…The first case study used here is based on the layout with toxic release problem described by Vázquez-Román et al (2010). Two new facilities, NA and NB, and the control room, CR, are to be allocated in a land where two facilities, FA and FB, have been already installed.…”

“…This model was modified to use rectangular footprints and add risk estimations based on the Dow Fire and Explosion Index (Papageorgiou and Rotstein, 1998;Patsiatzis and Papageorgiou, 2002). More recently, the facility layout where some of the installed facilities could release toxic materials have been developed (Díaz-Ovalle et al, 2009Diaz et al, 2009;Vázquez-Román et al, 2010). In particular, the non-overlapping constraint was modeled via disjunctions where the convex hull method was used to convert the disjunction into equations via additional binary variables.…”

A new approach for facility siting using mapping risks on a plant grid area and optimization

“…Previous attempts have showed satisfactory results in optimizing the facility layout in combination with some safety considerations using Mixed Integer Non Linear Programming (MINLP), however these findings do not guarantee the global optimum solution (Penteado & Ciric, 1996). Similarly, numerous publications for the facility layout based on toxic gas release scenarios have also not provided globally optimal solutions (Diaz-Ovalle, Jung, Ng, Lee, Vazquez-Roman, & Mannan, 2010;Vazquez-Roman, Lee, Jung, & Mannan, 2009). Thus, it is imperative to develop a new methodology to achieve global optima in the facility layout problem with fire, explosion, and toxic release scenarios.…”

The use of computer aided techniques for revere osmosis desalination layout design

“…Initially, facility layout was formulated as quadratic assignment problems (QAP), which consider equal-sized units only-such problems were solved using heuristics, branch-and-bound algorithms, fuzzy logic, stochastic optimization and dynamic approaches [8][9][10][11]. In addition, facility layout can be tackled by graph theory approaches considering units and connections as nodes and arcs and maximising the adjacencies among nodes [12].…”