Neyman-Scott-based water distribution network modelling

Residential water demand is one of the most difficult parameters to determine when modelling drinking water distribution networks. It has been proven to be a stochastic process which can be characterised as a series of rectangular pulses having set intensity, duration and frequency. Such parameters...

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Main Authors: Víctor Hugo Alcocer Yamanaka, Velitchko G. Tzatchkov
Format: Article
Language:English
Published: Universidad Nacional de Colombia 2012-09-01
Series:Ingeniería e Investigación
Subjects:
Online Access:https://revistas.unal.edu.co/index.php/ingeinv/article/view/35937
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author Víctor Hugo Alcocer Yamanaka
Velitchko G. Tzatchkov
author_facet Víctor Hugo Alcocer Yamanaka
Velitchko G. Tzatchkov
author_sort Víctor Hugo Alcocer Yamanaka
collection DOAJ
description Residential water demand is one of the most difficult parameters to determine when modelling drinking water distribution networks. It has been proven to be a stochastic process which can be characterised as a series of rectangular pulses having set intensity, duration and frequency. Such parameters can be determined using stochastic models such as the Neyman-Scott rectangular pulse model (NSRPM). NSRPM is based on resolving a non-linear optimisation problem involving theoretical moments of the synthetic demand series (equiprobable) and of the observed moments (field measurements) statistically establishing the measured demand series. NSRPM has been applied to generating local residential demand. However, this model has not been validated for a real distribution network with residential demand aggregation, or compared to traditional methods (which is dealt with here). This paper compares the results of synthetic stochastic demand series (calculated using NSRPM applied to determining pressure and flow rate) to results obtained using traditional simulation methods using the curve of hourly variation in demand and to actual pressure and flow rate measurements. The Humaya sector of Culiacan, Sinaloa, Mexico, was used as study area.
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spelling doaj.art-f7353c58b78e4c9ca4e2b37324f19e9e2022-12-21T19:25:46ZengUniversidad Nacional de ColombiaIngeniería e Investigación0120-56092248-87232012-09-01323323631633Neyman-Scott-based water distribution network modellingVíctor Hugo Alcocer Yamanaka0Velitchko G. Tzatchkov1Instituto Mexicano de Tecnología del AguaInstituto Mexicano de Tecnología del AguaResidential water demand is one of the most difficult parameters to determine when modelling drinking water distribution networks. It has been proven to be a stochastic process which can be characterised as a series of rectangular pulses having set intensity, duration and frequency. Such parameters can be determined using stochastic models such as the Neyman-Scott rectangular pulse model (NSRPM). NSRPM is based on resolving a non-linear optimisation problem involving theoretical moments of the synthetic demand series (equiprobable) and of the observed moments (field measurements) statistically establishing the measured demand series. NSRPM has been applied to generating local residential demand. However, this model has not been validated for a real distribution network with residential demand aggregation, or compared to traditional methods (which is dealt with here). This paper compares the results of synthetic stochastic demand series (calculated using NSRPM applied to determining pressure and flow rate) to results obtained using traditional simulation methods using the curve of hourly variation in demand and to actual pressure and flow rate measurements. The Humaya sector of Culiacan, Sinaloa, Mexico, was used as study area.https://revistas.unal.edu.co/index.php/ingeinv/article/view/35937Residential water demandnetwork modelingNeyman-ScottRectangular Pulse (NSRP) model
spellingShingle Víctor Hugo Alcocer Yamanaka
Velitchko G. Tzatchkov
Neyman-Scott-based water distribution network modelling
Ingeniería e Investigación
Residential water demand
network modeling
Neyman-Scott
Rectangular Pulse (NSRP) model
title Neyman-Scott-based water distribution network modelling
title_full Neyman-Scott-based water distribution network modelling
title_fullStr Neyman-Scott-based water distribution network modelling
title_full_unstemmed Neyman-Scott-based water distribution network modelling
title_short Neyman-Scott-based water distribution network modelling
title_sort neyman scott based water distribution network modelling
topic Residential water demand
network modeling
Neyman-Scott
Rectangular Pulse (NSRP) model
url https://revistas.unal.edu.co/index.php/ingeinv/article/view/35937
work_keys_str_mv AT victorhugoalcoceryamanaka neymanscottbasedwaterdistributionnetworkmodelling
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