<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>2007-2422</journal-id>
<journal-title><![CDATA[Tecnología y ciencias del agua]]></journal-title>
<abbrev-journal-title><![CDATA[Tecnol. cienc. agua]]></abbrev-journal-title>
<issn>2007-2422</issn>
<publisher>
<publisher-name><![CDATA[Instituto Mexicano de Tecnología del Agua, Coordinación de Comunicación, Participación e Información]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-24222016000300115</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Modelación de la variación del consumo de agua potable con métodos estocásticos]]></article-title>
<article-title xml:lang="en"><![CDATA[Stochastic Method Water Demand Variation Modelling]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Tzatchkov]]></surname>
<given-names><![CDATA[Velitchko G.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Alcocer-Yamanaka]]></surname>
<given-names><![CDATA[Víctor H.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Mexicano de Tecnología del Agua  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Comisión Nacional del Agua  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2016</year>
</pub-date>
<volume>7</volume>
<numero>3</numero>
<fpage>115</fpage>
<lpage>133</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-24222016000300115&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-24222016000300115&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-24222016000300115&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen A pesar de su importancia, en la práctica, la variación de la demanda de agua potable se estima de manera muy aproximada de mediciones continuas del gasto en la tubería que abastece a una zona; por su lado, la curva de variación de la demanda medida se asume válida para cualquier otra tubería de la red, independientemente del número de usuarios al que da servicio. El presente artículo describe una metodología para obtener la variación diaria estocástica de la demanda instantánea de agua potable, aplicable a una sola casa o cualquier número de casas con base en los parámetros estadísticos del consumo de agua en casas individuales, nivel de fugas dado y la variación del gasto medida en la tubería de abastecimiento, considerando casos de suministro continuo e intermitente. La metodología propuesta ofrece una base racional para la determinación de la variación de la demanda a cualquier nivel de agregación, que puede combinarse con la correspondiente manera tradicional o sustituirla. Los resultados se compararon con mediciones de campo en una ciudad mexicana donde el suministro de agua potable es continuo. La variación de los gastos en las tuberías con suministro intermitente o con servicio continuo, pero con cisternas y tinacos en los domicilios, es muy diferente de aquella en tuberías con suministro continuo sin cisternas y tinacos. El coeficiente de demanda máxima horaria es más alto en suministro intermitente que en suministro continuo, pero más bajo en redes que tienen servicio continuo, y cisternas o tinacos en los domicilios.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Despite its importance, water demand variation in current practice is estimated very approximately by observing water flow in a pipe supplying certain zone, and the demand variation curve thus obtained is assumed to be valid for any other pipe in the network, regardless the number of water users served. This paper describes a methodology for obtaining the daily instantaneous water demand stochastic variation based on statistical parameters of water consumption at individual homes, given leakage level, and observed flow variation at the supplying pipe. Continuous and intermittent supplies are considered. The methodology is applicable to a single home or a group of any number of homes. It provides a rational base for determining water demand variation at any aggregation level and can be combined with the corresponding traditional way of such determination, or substitute it. The results were compared with field measurements in a Mexican city where water supply is continuous. Flow variation in intermittent water supply pipes, or in continuous supply pipes with ground level cisterns and roof tanks, is very different from that in continuous supply pipes. The hourly water demand coefficient is higher in intermittent water supply, compared to continuous supply, but lower in networks with continuous supply and ground level cisterns and roof tanks.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[demanda estocástica de agua potable]]></kwd>
<kwd lng="es"><![CDATA[método de pulsos rectangulares de Poisson (PRP)]]></kwd>
<kwd lng="es"><![CDATA[curva de la variación horaria de la demanda]]></kwd>
<kwd lng="es"><![CDATA[coeficiente de variación horaria]]></kwd>
<kwd lng="es"><![CDATA[agregación de la demanda de agua]]></kwd>
<kwd lng="es"><![CDATA[suministro continuo e intermitente de agua potable]]></kwd>
<kwd lng="en"><![CDATA[Stochastic water demand]]></kwd>
<kwd lng="en"><![CDATA[PRP method]]></kwd>
<kwd lng="en"><![CDATA[Hourly demand variation curve]]></kwd>
<kwd lng="en"><![CDATA[Hourly demand variation coefficient]]></kwd>
<kwd lng="en"><![CDATA[Water demand aggregation]]></kwd>
<kwd lng="en"><![CDATA[Continuous and intermittent water supply]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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