Uncertainty Analysis of Phast’s Atmospheric Dispersion Model for Two Industrial Use Cases

We have undertaken an uncertainty analysis of the dispersion model of a widely used tool for consequence assessment, comparing the level of output variability observed for an accident investigation use-case (where input variables concerning the release conditions are uncertain) and a risk prevention...

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Main Authors: N. Pandya, N. Gabas, E. Marsden
Format: Article
Language:English
Published: AIDIC Servizi S.r.l. 2013-05-01
Series:Chemical Engineering Transactions
Online Access:https://www.cetjournal.it/index.php/cet/article/view/6796
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spelling doaj-358772cd878c4f85818b6cc806f867c92021-02-22T21:01:56ZengAIDIC Servizi S.r.l.Chemical Engineering Transactions2283-92162013-05-013110.3303/CET1331017Uncertainty Analysis of Phast’s Atmospheric Dispersion Model for Two Industrial Use CasesN. PandyaN. GabasE. MarsdenWe have undertaken an uncertainty analysis of the dispersion model of a widely used tool for consequence assessment, comparing the level of output variability observed for an accident investigation use-case (where input variables concerning the release conditions are uncertain) and a risk prevention use-case (where the effect of uncertainty in internal model parameters is evaluated). As expected, for the two flammable and two toxic materials studied, uncertainty for the risk prevention use-case is significantly lower than that for accident investigation. We have identified the release conditions which lead to the highest level of variability in model outputs.https://www.cetjournal.it/index.php/cet/article/view/6796
collection DOAJ
language English
format Article
sources DOAJ
author N. Pandya
N. Gabas
E. Marsden
spellingShingle N. Pandya
N. Gabas
E. Marsden
Uncertainty Analysis of Phast’s Atmospheric Dispersion Model for Two Industrial Use Cases
Chemical Engineering Transactions
author_facet N. Pandya
N. Gabas
E. Marsden
author_sort N. Pandya
title Uncertainty Analysis of Phast’s Atmospheric Dispersion Model for Two Industrial Use Cases
title_short Uncertainty Analysis of Phast’s Atmospheric Dispersion Model for Two Industrial Use Cases
title_full Uncertainty Analysis of Phast’s Atmospheric Dispersion Model for Two Industrial Use Cases
title_fullStr Uncertainty Analysis of Phast’s Atmospheric Dispersion Model for Two Industrial Use Cases
title_full_unstemmed Uncertainty Analysis of Phast’s Atmospheric Dispersion Model for Two Industrial Use Cases
title_sort uncertainty analysis of phast’s atmospheric dispersion model for two industrial use cases
publisher AIDIC Servizi S.r.l.
series Chemical Engineering Transactions
issn 2283-9216
publishDate 2013-05-01
description We have undertaken an uncertainty analysis of the dispersion model of a widely used tool for consequence assessment, comparing the level of output variability observed for an accident investigation use-case (where input variables concerning the release conditions are uncertain) and a risk prevention use-case (where the effect of uncertainty in internal model parameters is evaluated). As expected, for the two flammable and two toxic materials studied, uncertainty for the risk prevention use-case is significantly lower than that for accident investigation. We have identified the release conditions which lead to the highest level of variability in model outputs.
url https://www.cetjournal.it/index.php/cet/article/view/6796
work_keys_str_mv AT npandya uncertaintyanalysisofphastsatmosphericdispersionmodelfortwoindustrialusecases
AT ngabas uncertaintyanalysisofphastsatmosphericdispersionmodelfortwoindustrialusecases
AT emarsden uncertaintyanalysisofphastsatmosphericdispersionmodelfortwoindustrialusecases
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