Comparison of demand driven and pressure dependent hydraulic approaches for modelling water quality in distribution networks

Alemtsehay Gebremeskel Seyoum, Tiku Tanyimboh, Calvin Siew

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

1 Citation (Scopus)
235 Downloads (Pure)

Abstract

Water distribution hydraulic models have been used as a basis for water quality modelling in distribution networks. Experts recognized that a realistic hydraulic model is required to accurately simulate water quality. The aim of this paper is to compare Demand Driven Analysis (DDA) and Pressure Dependent Analysis (PDA) based hydraulic models for simulating water quality in networks for future enhancement of water quality models. The well known EPANET 2 and the newly developed EPANET-PDX (pressure dependent extension) have been used as the DDA and PDA models respectively. Water quality analysis was performed for normal and pressure deficient hydraulic conditions on a sample network from literature. The models provide identical results for normal pressure conditions, but different results for pressure deficient conditions. The differences for the case of pressure deficient condition are significant at the farthest nodes from the source during high pressure deficiency situation with low demand satisfaction condition.
Original languageEnglish
Title of host publicationEleventh International Conference on Computing and Control for the Water Industry : CCWI 2011
Subtitle of host publication Urban Water Management: Challenges and Opportunities: Exeter, UK, 5-7 September 2011
EditorsDragan A Savic, Zoran Kapelan, David Butler
Pages619-624
Number of pages6
Volume1
Publication statusPublished - Sep 2011
Event11th International Conference on Computing and Control for the Water Industry - Exeter, United Kingdom
Duration: 5 Sep 20117 Sep 2011

Conference

Conference11th International Conference on Computing and Control for the Water Industry
CountryUnited Kingdom
CityExeter
Period5/09/117/09/11

Fingerprint

Electric power distribution
Water quality
Hydraulics
Hydraulic models
Water

Keywords

  • demand driven analysis
  • EPANET 2
  • water quality modelling
  • water distribution network
  • pressure-deficient water network
  • gradient method
  • logistic pressure-dependent nodal flow function
  • pressure driven analysis

Cite this

Seyoum, A. G., Tanyimboh, T., & Siew, C. (2011). Comparison of demand driven and pressure dependent hydraulic approaches for modelling water quality in distribution networks. In D. A. Savic, Z. Kapelan, & D. Butler (Eds.), Eleventh International Conference on Computing and Control for the Water Industry : CCWI 2011: Urban Water Management: Challenges and Opportunities: Exeter, UK, 5-7 September 2011 (Vol. 1, pp. 619-624)
Seyoum, Alemtsehay Gebremeskel ; Tanyimboh, Tiku ; Siew, Calvin. / Comparison of demand driven and pressure dependent hydraulic approaches for modelling water quality in distribution networks. Eleventh International Conference on Computing and Control for the Water Industry : CCWI 2011: Urban Water Management: Challenges and Opportunities: Exeter, UK, 5-7 September 2011. editor / Dragan A Savic ; Zoran Kapelan ; David Butler. Vol. 1 2011. pp. 619-624
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abstract = "Water distribution hydraulic models have been used as a basis for water quality modelling in distribution networks. Experts recognized that a realistic hydraulic model is required to accurately simulate water quality. The aim of this paper is to compare Demand Driven Analysis (DDA) and Pressure Dependent Analysis (PDA) based hydraulic models for simulating water quality in networks for future enhancement of water quality models. The well known EPANET 2 and the newly developed EPANET-PDX (pressure dependent extension) have been used as the DDA and PDA models respectively. Water quality analysis was performed for normal and pressure deficient hydraulic conditions on a sample network from literature. The models provide identical results for normal pressure conditions, but different results for pressure deficient conditions. The differences for the case of pressure deficient condition are significant at the farthest nodes from the source during high pressure deficiency situation with low demand satisfaction condition.",
keywords = "demand driven analysis, EPANET 2, water quality modelling, water distribution network, pressure-deficient water network, gradient method, logistic pressure-dependent nodal flow function, pressure driven analysis",
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Seyoum, AG, Tanyimboh, T & Siew, C 2011, Comparison of demand driven and pressure dependent hydraulic approaches for modelling water quality in distribution networks. in DA Savic, Z Kapelan & D Butler (eds), Eleventh International Conference on Computing and Control for the Water Industry : CCWI 2011: Urban Water Management: Challenges and Opportunities: Exeter, UK, 5-7 September 2011. vol. 1, pp. 619-624, 11th International Conference on Computing and Control for the Water Industry, Exeter, United Kingdom, 5/09/11.

Comparison of demand driven and pressure dependent hydraulic approaches for modelling water quality in distribution networks. / Seyoum, Alemtsehay Gebremeskel; Tanyimboh, Tiku; Siew, Calvin.

Eleventh International Conference on Computing and Control for the Water Industry : CCWI 2011: Urban Water Management: Challenges and Opportunities: Exeter, UK, 5-7 September 2011. ed. / Dragan A Savic; Zoran Kapelan; David Butler. Vol. 1 2011. p. 619-624.

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

TY - GEN

T1 - Comparison of demand driven and pressure dependent hydraulic approaches for modelling water quality in distribution networks

AU - Seyoum, Alemtsehay Gebremeskel

AU - Tanyimboh, Tiku

AU - Siew, Calvin

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N2 - Water distribution hydraulic models have been used as a basis for water quality modelling in distribution networks. Experts recognized that a realistic hydraulic model is required to accurately simulate water quality. The aim of this paper is to compare Demand Driven Analysis (DDA) and Pressure Dependent Analysis (PDA) based hydraulic models for simulating water quality in networks for future enhancement of water quality models. The well known EPANET 2 and the newly developed EPANET-PDX (pressure dependent extension) have been used as the DDA and PDA models respectively. Water quality analysis was performed for normal and pressure deficient hydraulic conditions on a sample network from literature. The models provide identical results for normal pressure conditions, but different results for pressure deficient conditions. The differences for the case of pressure deficient condition are significant at the farthest nodes from the source during high pressure deficiency situation with low demand satisfaction condition.

AB - Water distribution hydraulic models have been used as a basis for water quality modelling in distribution networks. Experts recognized that a realistic hydraulic model is required to accurately simulate water quality. The aim of this paper is to compare Demand Driven Analysis (DDA) and Pressure Dependent Analysis (PDA) based hydraulic models for simulating water quality in networks for future enhancement of water quality models. The well known EPANET 2 and the newly developed EPANET-PDX (pressure dependent extension) have been used as the DDA and PDA models respectively. Water quality analysis was performed for normal and pressure deficient hydraulic conditions on a sample network from literature. The models provide identical results for normal pressure conditions, but different results for pressure deficient conditions. The differences for the case of pressure deficient condition are significant at the farthest nodes from the source during high pressure deficiency situation with low demand satisfaction condition.

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KW - pressure-deficient water network

KW - gradient method

KW - logistic pressure-dependent nodal flow function

KW - pressure driven analysis

UR - http://events.exeter.ac.uk/ccwi2011/

UR - http://www.water-system.org/ccwi2013/sites/default/files/CCWI2011_list%20of%20papers.pdf

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BT - Eleventh International Conference on Computing and Control for the Water Industry : CCWI 2011

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Seyoum AG, Tanyimboh T, Siew C. Comparison of demand driven and pressure dependent hydraulic approaches for modelling water quality in distribution networks. In Savic DA, Kapelan Z, Butler D, editors, Eleventh International Conference on Computing and Control for the Water Industry : CCWI 2011: Urban Water Management: Challenges and Opportunities: Exeter, UK, 5-7 September 2011. Vol. 1. 2011. p. 619-624