Abstract
Reliability Analysis of Water Distribution Subsystem This paper presents results of detailed reliability analysis of water distribution subsystem operation of Krakow city. Basis of the research was wide base of information of occurred failures during exploitation (1996-2006). These analysis included evaluation of basic factors such as: failure and renovation intensities, mean recovery time and mean time to failure, availability factor and probability of failure-free operation at any time. Moreover, it was performed wide analysis of failure capability of pipes as a function of its diameter and material. The paper consists also of research results of occurred piping failures reasons and consequences.
Highlights
The water supply systems (WSS) operation is inseparable relevant with a risk of occurrence of different, undesirable random events, which formative the changing its operation condition
Calculable reliability analysis in changing exploitation conditions, which determines a probability of failurefree operation of the waterworks system, it is object of concern of water supply system exploiters
The water distribution subsystem (WDS) is the part of WSS, which enables water delivery to the city and distributed directly to final consumers, consists of a water-pipe network situated in the area of the settlement, together with all associated technical objects
Summary
The water supply systems (WSS) operation is inseparable relevant with a risk of occurrence of different, undesirable random events, which formative the changing its operation condition. Occurrence frequency of those events as well as its results for customers is significant element of rating the waterworks companies by inhabitants of cities and villages. − repairing, this covers a set of actions performed to restore exploitation abilities of the object Taking all this into account, application of reliability estimation of system operation, with respect to its technological structure, is essential information for rational managing of water supply system. Waterworks companies exploitation water-pipe network much preferably uses benefits of reliability and safety theory in order to undertake necessary exploitation action on the water pipe network that will allow improvement comfort of company’s operation and mainly of inhabitants’ life conditions [4]
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