Multi-level optimization of maintenance plan for natural gas system exposed to deterioration process.

Clicks: 135
ID: 53092
2019
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Abstract
In this paper, a risk-based optimization methodology for a maintenance schedule considering Process Variables (PVs), is developed within the framework of asset integrity assessment. To this end, an integration of Dynamic Bayesian Network, Damage Modelling and sensitivity analysis are implemented to clarify the behaviour of failure probability, considering the exogenous undisciplinable perturbations. Discrete time case is considered through measuring or observing the PVs. Decision configurations and utility nodes are defined inside the network to represent maintenance activities and their associated costs. The regression analysis is considered to model the impact of perturbations on PVs for future applications. The developed methodology is applied to a case study of Chemical Plant (Natural Gas Regulating and Metering Stations). To demonstrate the applicability of the methodology, three cases of seasonal observations of specific PV (pressure) are considered. The proposed methodology could either analyse the failure based on precursor data of PVs or obtain the optimum maintenance schedule based on actual condition of the systems.
Reference Key
bahootoroody2019multileveljournal Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors BahooToroody, Ahmad;Abaei, Mohammad Mahdi;Arzaghi, Ehsan;BahooToroody, Farshad;De Carlo, Filippo;Abbassi, Rouzbeh;
Journal Journal of hazardous materials
Year 2019
DOI
S0304-3894(18)30838-0
URL
Keywords
asset integrity assessment dynamic bayesian network influence diagram regression tools risk-based maintenance

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