Abstract
Reliability of Water Distribution Networks
Highlights
Water network reliability is an indirect measure of customer satisfaction about the level of water supply service
It should be taken in consideration that during proposing upgrade scenarios that the network reliability is governed by failure case P-14 so during preparing upgrade scenarios, upgrades to overcome the failure case of P-14 should have the highest priority in order to increase the network reliability
Pumps are a critical component which should not be ignored during preparing upgrades in this case there are 4 working + 2 standby pumps which results a good mechanical reliability so the is no need for upgrades
Summary
Water network reliability is an indirect measure of customer satisfaction about the level of water supply service. 2) Simulation Approach Simulation approaches deal with the hydraulic reliability and availability They analyses the hydraulic performance of the network, i.e. a suppling of the required quantities and qualities of water at adequate pressure to the appropriate locations at any given time. These approaches rely heavily on hydraulic models and require very good information about the network layout and operation, including the records related to the component failures, these. In hydraulic modelling of water systems, in most cases demand driven analysis is assumed where the demand the satisfied regardless to the pressure This model may produce unrealistic results especially during failure condition of the network. These assumptions result in an inflexible failure rate that cannot represent deterioration over time and is only partly manipulated by the previous failures
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