Abstract
In water supply systems there are many situations during normal operation that induce the occurrence of pressure transients, where high pressures are followed by low, sometimes even negative pressures. These transients may cause ruptures in pipes creating thus leaks or opportunities for contaminants to enter the water supply system. Thus severe pressures transients should be avoided or adequately controlled in potable drinking systems. The level of service provided by water distribution systems is an important matter in the water industry of today. However, the measure of the performance of a pipe system network is not a straightforward task. In this study the performance of pressures in two networks (a cast iron network and a polyethylene network) with the same typology was compared. The transient state conditions were induced by different typical hydromechanical devices operation characterised by a sudden pumps trip-off, a leakage occurrence and a closure of an automatic control valve. For the hydraulic simulations, advanced models based on numerical computation for steady and transient state conditions were used. A performance evaluation model was developed to analyse each type of situation since the simulation time period and the concerns regarding the system behaviour can be fairly different.
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References
Almeida AB, Koelle E (1992) Fluid transients in pipe networks. Computational Mechanics Publications, Elsevier Applied Science, Amsterdam
Araujo LS, Coelho ST, Ramos HM (2003) Estimation of distributed pressure-dependent leakage and consumer demand in water supply networks. In: International conference on advances in water supply management, CCWI 2003, Imperial College, UK
Araujo LS, Ramos H, Coelho ST (2006) Pressure control for leakage minimisation in water distribution systems management. Water Resour Manag 20(1):133–149
Brunone B, Morelli L (1999) Automatic control valve-induced transients in operative pipe system. J Hydraul Eng 125(5):534–542, May
Chaudhry MH (1987) Applied hydraulic transients, 2nd edn. Litton Educational Publishing Inc., Van Nostrand Reinhold, New York
Coelho ST (1997) Performance assessment through mathematical modelling. In: Workshop on performance indicators for transmission and distribution systems, IWSA, Associação Internacional dos Distribuidores de Água, National Laboratory of Civil Engineering, Lisbon, Portugal
Covas D, Stoianov I, Mano JF, Ramos H, Graham N, Maksimovic C (2004) The dynamic effect of pipe-wall viscoelasticity in hydraulic transients. Part I—experimental analysis and creep characterization. J Hydraul Res 42(5):516–530
Covas D, Stoianov I, Mano JF, Ramos H, Graham N, Maksimovic C (2005) The dynamic effect of pipe-wall viscoelasticity in hydraulic transients. Part II—model development, calibration and verification. J Hydraul Res 43(1):56–70
Fleming KK, Dugandzic JP, Lechevallier MW, Gullick RW (2006) Susceptibility of potable water distribution systems to negative pressure transients. Research project summary. Division of Science, Research and Technology, Trenton
Fujiwara O, Li J (1998) Reliability analysis of water distribution networks in consideration of equity, redistribution, and pressure-dependent demand. Water Resour Res 34(7):1843–1850, July
Giustolisi O, Doglioni A (2007) A pressure-driven approach for water distribution system modelling. Water Management Challenges in Global Change. Taylor & Francis Group, London, Ulanicki et al. 2007, ISBN 978-0-415-45415-5
Gullick RW, Lechevallier MW, Svinland RC, Friedman MJ (2004) Occurrence of transient low and negative pressures in distribution systems. J AWWA 96(11):52–66
Karim M, Abbaszadegan M, Lechevallier MW (2003) Potential for pathogen intrusion during pressure transients. J AWWA 95(5):134–146
Loureiro D, Ramos H, Coelho ST, Menaia J, Lopes A (2002) Pressure transients in the analysis of characteristic parameters—hydraulic and water quality. In: Proceedings of 6th water conference, March, Porto, Portugal (in Portuguese)
Martínez F, Conejos P, Vercher J (1999) Developing an integrated model for water distribution systems considering both distributed leakage and pressure-dependent demands. In: Proceedings of the 26th ASCE water resources planning and management division conference, Tempe, Arizona
McInnis DA, Karney BW (1995) Transients in distribution networks: field tests and demand models. J Hydraul Eng 121(3):218–231, March
Ramos H (1995) Simulation and control of hydrotransients at small hydroelectric power plants. Ph.D. Thesis. Technical University of Lisbon–IST, Portugal (in Portuguese)
Ramos H, Almeida AB (2001) Dynamic orifice model on water hammer analysis of high or medium heads of small hydropower schemes. J Hydraul Res 39(4):429–436, ISSN-0022-1686
Rossman LA (2000) EPANET 2–User’s manual. United States Environmental Protection Agency
Soares AK, Reis LFR, Carrijo IB (2003) Head-driven simulation model (HDSM) for water distribution system calibration. In: Maksimovic C, Butler D, Memon F (eds) Advances in water supply management. Swets & Zeitlinger, Lisse, pp 197–207
Stephens M, Lambert MF, Simpson AR, Vítkovský J, Nixon J (2005) Using field measured transient responses in a water distribution system to assess valve status and network topology. In: Proceedings of the world water and environmental resources congress. Salt Lake City, Utah
Tamminen S, Ramos H, Covas D (2008) Water supply system performance for different pipe materials Part I: water quality analysis. Water Resour Manag doi:10.1007/s11269-008-9244-x, submitted in Dec 2006 (accepted for publication at 10 Jan 2008), ISSN 0920-4741 (Print) 1573–1650 (Online)
Tanyimboh TT, Tabesh M, Burrows R (2001) Appraisal of source head methods for calculating reliability of water distribution networks. J Water Resour Plan Manag 127(4):206–213, July/Aug
Todini E (2003) A more realistic approach to the “extended period simulation” of water distribution networks. In: Maksimovic C, Butler D, Memon FA (eds) Advances in water supply management. Swets & Zeitlinger, Lisse, pp 173–184
Tucciarelli T, Criminisi A, Termini D (1999). Leak analysis in pipeline systems by means of optimal valve regulation. J Hydraul Eng 125(3):277–285
Wylie EB, Streeter VL (1993) Fluid transients in systems. Prentice Hall, Englewood Cliffs
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Ramos, H., Tamminen, S. & Covas, D. Water Supply System Performance for Different Pipe Materials Part II: Sensitivity Analysis to Pressure Variation. Water Resour Manage 23, 367–393 (2009). https://doi.org/10.1007/s11269-008-9279-z
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DOI: https://doi.org/10.1007/s11269-008-9279-z