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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 32
Edited by: B.H.V. Topping
Paper I.1

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

Full Bibliographic Reference for this paper
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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