10.1184/R1/6467243.v1
Sebastian Terrazas-Moreno
Sebastian
Terrazas-Moreno
Ignacio E. Grossmann
Ignacio E.
Grossmann
John Wassick
John
Wassick
Scott J. Bury
Scott J.
Bury
Optimal design of reliable integrated chemical production sites
Carnegie Mellon University
2010
Reliability
Flexibility
Mixed-integer programming
Markov chains
Stochastic programming
2010-02-01 00:00:00
Journal contribution
https://kilthub.cmu.edu/articles/journal_contribution/Optimal_design_of_reliable_integrated_chemical_production_sites/6467243
<p>Since plants that form the process network are subjected to fluctuations in product demand or random mechanical failures, design decisions such as adding redundant units and increasing storage between units can increase the flexibility and reliability of an integrated site. In this paper, we develop a bi-criterion optimization model that captures the trade-off between capital investment and process robustness in the design of an integrated site. Design decisions considered are increases in process capacity, introduction of parallel units, and addition of intermediate storage. The mixed-integer linear programming (MILP) formulation proposed in this paper includes the representation of the material levels in the intermediate storage by means of a probabilistic model that captures the effects of the discrete, uncertain events. We also integrate a superstructure optimization with stochastic modeling techniques such as continuous-time Markov chains. The application of the proposed model is illustrated with two example problems.</p>