Guidelines for Transient Analysis in Water Transmission and Distribution Systems

An important issue in the context of design and analysis of a water distribution system is the rate of energy dissipation of a transient disturbance. In this paper, a preliminary numerical investigation is undertaken to establish the role and significance of primary energy dissipation mechanisms commonly found in water transmission and distribution systems. The role of steady friction, unwanted leaks, topological complexity and surge control devices in the decay of transient energy is preliminarily investigated. An energy approach previously derived is reviewed and used to track the progress of dissipation in a system. Transient simulations are run on a hypothetical series pipeline and distribution network with a waterhammer simulator to explore the dissipative effectiveness of some of the primary mechanisms.

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Optimization of Path for Water Transmission and Distribution Systems

Lecture Notes in Electrical Engineering - Transactions on Engineering Technologies ◽

10.1007/978-94-007-7684-5_23 ◽

2013 ◽

pp. 323-339 ◽

Cited By ~ 1

Author(s):

Ioan Sarbu ◽

Emilian Stefan Valea

Keyword(s):

Distribution Systems ◽

Water Transmission ◽

Transmission And Distribution

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The 1906 Earthquake Impacts on the San Francisco and Santa Clara Water Systems—What we Learned, and What we are doing about It

Earthquake Spectra ◽

10.1193/1.2186986 ◽

2006 ◽

Vol 22 (2_suppl) ◽

pp. 113-134 ◽

Cited By ~ 2

Author(s):

John Eidinger ◽

Lota de Castro ◽

Dennis Ma

Keyword(s):

San Francisco ◽

Distribution System ◽

Distribution Systems ◽

Water Distribution ◽

Cost Effective ◽

System Operator ◽

Water Transmission ◽

Pump Stations ◽

Transmission And Distribution ◽

The City

This paper describes what happened to San Francisco's water transmission and the city of Santa Clara's water distribution systems in the 1906 and the 1989 earthquakes. These two earthquakes showed that many of our existing transmission and distribution pipelines are susceptible to damage, and some of our older water treatment plants, tanks, and pump stations need to be upgraded. Accordingly, seismic upgrade programs are being undertaken to reduce the vulnerability of the regional water transmission and distribution systems. In developing a cost effective seismic upgrade program, both the transmission system operator (San Francisco Public Utilities Commission) (SFPUC) and distribution system operator (Santa Clara) consider what the weaknesses are of both systems, so that the maximum amount of seismic upgrade can be achieved at the lowest overall cost.

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