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Simulation of Water Distribution Network under Pressure-Deficient Condition

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  • P. Sivakumar
  • R. Prasad

Abstract

Pressure deficient condition occurs in the water distribution network (WDN) when the nodal demands are in excess of the design discharge as in the case of fire demand, pump failure, pipe breaks, valve failure etc. It causes either no-flow or partial-flow depending upon the available pressure head at the nodes. To evaluate the nodal flows in such condition, node flow analysis (NFA) gives reasonable results in comparison to demand-driven analysis (DDA) and head-dependent analysis (HDA). The NFA works on the predefined pressure-discharge relationship to evaluate the nodal flows. However, this approach requires human intervention and hence cannot be applied to large WDN. Recently, modified pressure-deficient network algorithm (M-PDNA) has been developed by Babu and Mohan ( 2012 ) for pressure-deficient analysis with EPANET toolkit. However, it requires modification of the source code of EPANET. In this study a relationship with the M-PDNA and node flow analysis (Gupta and Bhave 1996 ) has been investigated and it is found that M-PDNA is the simplified version of NFA. Further, the working principle of M-PDNA has been investigated with suitable examples of Babu and Mohan ( 2012 ). The theoretical basis of M-PDNA has not been investigated in terms of head-discharge relationship. Herein, a head-discharge relationship based on the working principal of M-PDNA is proposed. Some of the toolkits are also readily available to modify demand driven solver of EPANET 2 to suit for the pressure-driven analysis and then it can be used for analysing pressure deficient network. Also in this study, a modification in M-PDNA approach is proposed which does not require the use of EPANET toolkit which is found to be capable of simulating both pressure-sufficient and pressure-deficient conditions in a single hydraulic simulation. Using the proposed approach, pressure-deficient condition is analysed with constant and variable demand pattern. Copyright Springer Science+Business Media Dordrecht 2014

Suggested Citation

  • P. Sivakumar & R. Prasad, 2014. "Simulation of Water Distribution Network under Pressure-Deficient Condition," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 28(10), pages 3271-3290, August.
    • Handle: RePEc:spr:waterr:v:28:y:2014:i:10:p:3271-3290
    DOI: 10.1007/s11269-014-0677-0
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    References listed on IDEAS

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    1. S. Liberatore & G. Sechi, 2009. "Location and Calibration of Valves in Water Distribution Networks Using a Scatter-Search Meta-heuristic Approach," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 23(8), pages 1479-1495, June.
    2. Tonino Liserra & Marco Maglionico & Valentina Ciriello & Vittorio Di Federico, 2014. "Evaluation of Reliability Indicators for WDNs with Demand-Driven and Pressure-Driven Models," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 28(5), pages 1201-1217, March.
    3. Jacob Chandapillai & K. Sudheer & S. Saseendran, 2012. "Design of Water Distribution Network for Equitable Supply," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 26(2), pages 391-406, January.
    4. Nikolai Gorev & Inna Kodzhespirova, 2013. "Noniterative Implementation of Pressure-Dependent Demands Using the Hydraulic Analysis Engine of EPANET 2," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 27(10), pages 3623-3630, August.
    5. Calvin Siew & Tiku Tanyimboh, 2012. "Pressure-Dependent EPANET Extension," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 26(6), pages 1477-1498, April.
    6. Yu. Kovalenko & N. Gorev & I. Kodzhespirova & E. Prokhorov & G. Trapaga, 2014. "Convergence of a Hydraulic Solver with Pressure-Dependent Demands," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 28(4), pages 1013-1031, March.
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    Cited by:

    1. Nikolai B. Gorev & Vyacheslav N. Gorev & Inna F. Kodzhespirova & Igor A. Shedlovsky & P. Sivakumar, 2022. "Dealing with Zero Flows in the Simulation of Water Distribution Networks with Low-Resistance Pipes Using the Global Gradient Algorithm," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 36(5), pages 1679-1691, March.
    2. Xiang Xie & Dibo Hou & Xiaoyu Tang & Hongjian Zhang, 2019. "Leakage Identification in Water Distribution Networks with Error Tolerance Capability," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 33(3), pages 1233-1247, February.
    3. Ram Kailash Prasad, 2021. "Identification of Critical Pipes for Water Distribution Network Rehabilitation," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 35(15), pages 5187-5204, December.
    4. K. S. Jinesh Babu, 2021. "Fictitious Component Free - Pressure Deficient Network Algorithm for Water Distribution Network with Variable Minimum and Required Pressure-Heads," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 35(8), pages 2585-2600, June.
    5. Xuan Khoa Bui & Gimoon Jeong & Doosun Kang, 2022. "Adaptive DMA Design and Operation under Multiscenarios in Water Distribution Networks," Sustainability, MDPI, vol. 14(6), pages 1-22, March.
    6. D. Paez & C. R. Suribabu & Y. Filion, 2018. "Method for Extended Period Simulation of Water Distribution Networks with Pressure Driven Demands," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 32(8), pages 2837-2846, June.
    7. P. Sivakumar & Nikolai B. Gorev & Rajesh Gupta & Tiku T. Tanyimboh & Inna F. Kodzhespirova & C. R. Suribabu, 2020. "Effects of Non-Zero Minimum Pressure Heads in Non-iterative Application of EPANET 2 in Pressure-Dependent Volume-Driven Analysis of Water Distribution Networks," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 34(15), pages 5047-5059, December.
    8. E. Pacchin & S. Alvisi & M. Franchini, 2017. "Analysis of Non-Iterative Methods and Proposal of a New One for Pressure-Driven Snapshot Simulations with EPANET," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 31(1), pages 75-91, January.

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