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An MILP model for safe multi-floor process plant layout

  • University College London
  • Swansea University

Research output: Chapter in Book/Report/Conference proceedingChapterpeer-review

Abstract

In this work, a mixed integer linear programming (MILP) model is presented to obtain the optimal layout of a multi-floor chemical process plant with minimum risk in fire and explosion scenarios. Layout decisions determine the spatial arrangement of process plant equipment on available land area considering the equipment interconnections, dimensions, costs, general operability, as well as associated structures and auxiliary units. Optimal decisions ought to strike a balance between risk and cost savings. Previous attempts to include safety considerations in the layout decision making process have been restricted to minimise connection and risk costs alone, with some unrealistic assumptions on safety distances for mostly single floor layout cases. The model presented adopts the Dow's Fire & Explosion system to quantify risk in order to determine the optimal multi-floor plot layout simultaneously with more realistic constraints for safety distance calculations. The optimal layout design obtained minimises costs attributed to the installation of connecting pipes, pumping, area-dependent construction of floors, land purchase, as well as the risk associated with fire and explosion events by inherent and passive strategies.

Original languageEnglish
Title of host publicationComputer Aided Chemical Engineering
PublisherElsevier B.V.
Pages379-384
Number of pages6
DOIs
StatePublished - 2019
Externally publishedYes

Publication series

NameComputer Aided Chemical Engineering
Volume46
ISSN (Print)1570-7946

Keywords

  • MILP
  • multi-floor plant layout
  • optimisation
  • safety

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