Long-term availability modelling of water treatment plants

Journal article (2019)

Authors

Roland Smith Student, Waternet
Jasper van de Loo Waternet, Student
M. van den Boomen Integral Design & Management - CEG
N. Khakzad Rostami Safety and Security Science - TPM
Geert Jan van Heck Waternet, Student
A.R.M. Wolfert Integral Design & Management - CEG
Research Group
Integral Design & Management (CEG) (TU Delft)
Copyright: © 2019 Roland Smith, Jasper van de Loo, M. van den Boomen, N. Khakzad, Geert Jan van Heck, A.R.M. Wolfert
DOI: https://doi.org/10.1016/j.jwpe.2019.01.021
Availability Deterioration Repairable systems Water treatment plants
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Published Date

2019

Language

English

Faculty

Civil Engineering & Geosciences

Department

Materials- Mechanics- Management & Design

Research Group

Integral Design & Management

Abstract

Water treatment plants (WTPs) are characterised as complex configurations of repairable and deteriorating components. Previous studies have mainly focused on the average or steady-state availability of such systems while ignoring inherent characteristics like degradation. The current research proposes a two-level hierarchical model for long-term availability analysis of WTPs. To do so, at the component level, a condition-based technique (semi-Markov) or a failure-based technique (non-homogeneous Poisson process) is proposed based on the type and amount of available data while at the system level a reliability block diagram can be used to combine the component-level availabilities. The application of the methodology has been demonstrated on a real case study in the Netherlands.