NDLI: Methodology for economically optimal replacement of pipes in water distribution systems: 1. Theory

Content Provider	Springer Nature Link
Author	Park, Su Wan Loganathan, G. V.
Copyright Year	2002
Abstract	While the idea of critical breaks rate (defined as the break rate after which it is no longer economical to continuously repair) of water distribution pipeline has been accepted in the literature and among practicing engineers, the formula to obtain the critical break rate has remained elusive. In this paper, an equation for identifying the critical break rate of a pipe is preseted. The Threshold (or critical) Break Rate equation gives an accurate criterion for pipe replacement decision. Input variables to obtain the Threshold Break Rate of a pipe are repair and replacement costs, interest rate, and the length and diameter of a pipe. The newly developed Threshold Break Rate equation does not involve time variable in its form resulting in incapability of predicting future optimal replacement time. This disadvantage of the Threshold Break Rate equation is overcome by establishing relations of equivalence between the Threshold Break Rate and other failure rate models such as the ROCOF (rate of occurrence of failure) and hazard function.
Starting Page	539
Ending Page	543
Page Count	5
File Format	PDF
ISSN	12267988
Journal	KSCE Journal of Civil Engineering
Volume Number	6
Issue Number	4
e-ISSN	19763808
Language	English
Publisher	Korean Society of Civil Engineers
Publisher Date	2002-01-01
Publisher Place	Seoul
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	optimal replacement threshold break rate water distribution systems Civil Engineering Industrial Pollution Prevention Automotive and Aerospace Engineering, Traffic Geotechnical Engineering
Content Type	Text
Resource Type	Article
Subject	Civil and Structural Engineering

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