Ejeh, JO;
Liu, S;
Papageorgiou, LG;
(2021)
An MILP model for safe multi-floor process plant layout using the domino hazard index.
Process Safety and Environmental Protection
, 148
pp. 137-165.
10.1016/j.psep.2020.09.029.
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Abstract
In this paper, an optimisation-based approach to obtain safe multi-floor process plant layout designs using the domino hazard index (a sub-index of the integrated inherent safety index) is presented. A mixed integer linear programming (MILP) model is proposed to obtain the economically optimal multi-floor layout design considering connection by pipes, horizontal and vertical pumping of process fluids, purchase of land, fixed and area-dependent construction of floors, the financial risk associated with hazardous events and their escalation potential, and the installation of passive protection devices. Hazardous events such as pool fires, jet fires, flash fires, fireballs and blast waves resulting from explosions are considered using a novel and more realistic estimation of safety distances between equipment items. A bi-objective optimisation problem is also considered, minimising the layout costs and the total domino hazard index values for the plant, adopting the ϵ-constraint method. The proposed model is then applied to an 11-unit case study susceptible to each of these hazardous events, obtaining results with the optimal layout and protection device configurations in a relatively short amount of time.
| Type: | Article |
|---|---|
| Title: | An MILP model for safe multi-floor process plant layout using the domino hazard index |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.psep.2020.09.029 |
| Publisher version: | http://dx.doi.org/10.1016/j.psep.2020.09.029 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10120746 |
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