A Newly Developed Method for Computing Reliability Measures in a Water Supply Network

• Autorzy: Jacek Malinowski
• Języki publikacji: EN

Abstrakty

EN

A reliability model of a water supply network has beens examined. Its main features are: a topology that can be decomposed by the so-called state factorization into a (relatively)small number of derivative networks, each having a series-parallel structure (1), binary-state components (either operative or failed) with given flow capacities (2), a multi-state character of the whole network and its sub-networks - a network state is defined as the maximal flow between a source (sources) and a sink (sinks) (3), all capacities (component, network, and sub-network) have integer values (4). As the network operates, its state changes due to component failures, repairs, and replacements. A newly developed method of computing the inter-state transition intensities has been presented. It is based on the so-called state factorization and series-parallel aggregation. The analysis of these intensities shows that the failure-repair process of the considered system is an asymptotically homogenous Markov process. It is also demonstrated how certain reliability parameters useful for the network maintenance planning can be determined on the basis of the asymptotic intensities. For better understanding of the presented method, an illustrative example is given. (original abstract)

Słowa kluczowe

EN

Reliability; Water supply network

PL

Niezawodność; Sieć wodociągowa

• Czasopismo: Operations Research and Decisions
• Rocznik: 2016
• Tom: 26
• Numer: nr 4
• Strony: 49--64

Twórcy

autor

Jacek Malinowski

• Polish Academy of Sciences

Bibliografia

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• [5] SHAMIR U., Reliability of water supply systems, [in:] L. Duckstein, E.J. Plate (Eds.), Engineering Reliability and Risk in Water Resources, NATO ASI Series, Martinus Nijhoff Publ., 1987, 233.
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• [7] XU C., POWELL R.S., Water supply system reliability: concepts and measures, Civil Eng. Sys., 1991, 8 (4), 191.
• [8] YANNOPOULOS S., SPILIOTIS M., Water distribution system reliability based on minimum cut-set approach and the hydraulic availability, Water Res. Manage., 2013, 27 (6), 1821.

Identyfikatory

DOI

10.5277/ord160404