Effect of parameter uncertainty on water distribution systems model prediction

M. F.K. Pasha, K. Lansey

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

Water distribution quality model requires inputs from many sources. The input parameters for the model can be broadly classified into two groups; hydraulic model parameters and water quality model parameters. The input parameters for the hydraulic model are nodal demands, pipe diameter, pipe length and pipe roughness. The input parameters for the water quality model are global bulk and wall decay coefficients. The uncertainties involved in these input parameters propagate into the model predictions and cause the model outputs, the nodal pressure and chlorine residual uncertain. This paper considers six different networks based on their different layouts to examine the impact of uncertain input parameters on model prediction. Monte Carlo Simulation (MCS) has been used examine the impact. Results show that for most of the networks global wall decay coefficient and demand have largest influence on the model prediction.

Original languageEnglish (US)
Title of host publicationWorld Environmental and Water Resources Congress 2011
Subtitle of host publicationBearing Knowledge for Sustainability - Proceedings of the 2011 World Environmental and Water Resources Congress
Pages68-78
Number of pages11
DOIs
StatePublished - Jul 21 2011
EventWorld Environmental and Water Resources Congress 2011: Bearing Knowledge for Sustainability - Palm Springs, CA, United States
Duration: May 22 2011May 26 2011

Publication series

NameWorld Environmental and Water Resources Congress 2011: Bearing Knowledge for Sustainability - Proceedings of the 2011 World Environmental and Water Resources Congress

Other

OtherWorld Environmental and Water Resources Congress 2011: Bearing Knowledge for Sustainability
CountryUnited States
CityPalm Springs, CA
Period5/22/115/26/11

Keywords

  • Parameters
  • Predictions
  • Uncertainty principles
  • Water distribution systems

ASJC Scopus subject areas

  • Environmental Science(all)

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