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DEVELOPMENTS IN COMPUTATIONAL TECHNIQUES FOR CIVIL ENGINEERING
Edited by: B.H.V. Topping
A New Method for Calculating the Reliability of Single-Source Networks
T.T. Tanyimboh and A.B. Templeman
Department of Civil Engineering, University of Liverpool, Liverpool, UK
T.T. Tanyimboh, A.B. Templeman, "A New Method for Calculating the Reliability of Single-Source Networks", in B.H.V. Topping, (Editor), "Developments in Computational Techniques for Civil Engineering", Civil-Comp Press, Edinburgh, UK, pp 1-9, 1995. doi:10.4203/ccp.32.1.1
The formulation described herein evolved in the course of the authors' investigation of possible relationships between entropy and reliability. What was required was a measure that, for small networks, could be easily understood and interpreted and would be straightforward to calculate, i.e. something akin to the percentage of demand satisfied at adequate pressure. A major weakness of the latter is its inability to handle subnormal service in a satisfactory way.
It was postulated that the notional net source head to satisfy all network demands would be suitable. A subtle reversal of the roles of normal and subnormal service together with a probabilistic analysis were sufficient to elevate the purely comparative source head measure to a meaningful and accurate reliability measure. Its efficacy is proven by a numerical demonstration.
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