A new index for chemical process design considering risk analysis and controllability

Medina-Herrera, Nancy ✉; Tututi-Avila, Salvador; Jimenez-Gutierrez, Arturo

Angol nyelvű Tudományos Konferenciaközlemény (Folyóiratcikk)
Megjelent: COMPUTER-AIDED CHEMICAL ENGINEERING 1570-7946 46 pp. 373-378 2019
Konferencia: 29th European Symposium on Computer-Aided Process Engineering (ESCAPE) 2019-06-16 [Eindhoven, Hollandia]
    Safety and controllability are two important items that complement the economic analysis commonly done during a process design. Such factors are typically carried out once the process has been designed. Although some approaches have been proposed to include controllability properties from the design stage of the process, safety is still addressed after the design has been completed, so that safety devices are added to mitigate the consequences of potential accidents. Inherent safety is the most effective risk management approach, since actions can be taken to avoid accidents instead of mitigating their consequences. However, inherent safety is not a straightforward procedure, nor universal, and sometimes in conflict with other properties or parameters of the process. This manuscript describes a new index to account for inherent safety and controllability. The combination of a conditions number that accounts for controllability and a distance likely to cause death that emerges from the application of a quantitative risk analysis for the process was used as a basis. Three mathematical relationships were explored in the search for a suitable combination of such indices. The procedure was applied to a case study dealing with a distillation system design. Results show how the values obtained from the proposed index can give an initial assessment of the combined effect of risk and controllability as part of the design of a process.
    Hivatkozás stílusok: IEEEACMAPAChicagoHarvardCSLMásolásNyomtatás
    2021-12-02 17:15