<?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>1390-0129</journal-id>
<journal-title><![CDATA[Revista Politécnica]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Politéc. (Quito)]]></abbrev-journal-title>
<issn>1390-0129</issn>
<publisher>
<publisher-name><![CDATA[Escuela Politécnica Nacional]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1390-01292022000400039</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Obtención y Validación de Modelos de Presión Diferencial en la Sección de Impulsión de una Unidad Manejadora de Aire]]></article-title>
<article-title xml:lang="en"><![CDATA[Obtaining and Validating of Differential Pressure Models in the Impulse Section of an Air Handling Unit]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Alberto]]></surname>
<given-names><![CDATA[García Vázquez, Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Isabel]]></surname>
<given-names><![CDATA[González Santos, Ana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Tecnológica de La Habana José Antonio Echeverría  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Tecnológica de La Habana José Antonio Echeverría  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>01</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>01</month>
<year>2022</year>
</pub-date>
<volume>50</volume>
<numero>2</numero>
<fpage>39</fpage>
<lpage>54</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.senescyt.gob.ec/scielo.php?script=sci_arttext&amp;pid=S1390-01292022000400039&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.senescyt.gob.ec/scielo.php?script=sci_abstract&amp;pid=S1390-01292022000400039&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.senescyt.gob.ec/scielo.php?script=sci_pdf&amp;pid=S1390-01292022000400039&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: Este artículo aborda el problema de la identificación de la presión diferencial en una unidad manejadora de aire (UMA), haciendo especial énfasis en la validación de los modelos obtenidos. A pesar de que muchos autores se concentran solo en las variables: temperatura y humedad, por el probado ahorro energético de la aplicación de diversas estrategias de control avanzado sobre las mismas, otros estudios también muestran las oportunidades de ahorro a partir del control del flujo de aire. Todos estos trabajos tienen como denominador común el uso de modelos tanto en el diseño como en la evaluación de las estrategias de control propuestas. El trabajo aquí presentado destaca los aspectos tomados en cuenta durante la aplicación de la metodología de la identificación de sistemas en el proceso estudiado. Se exponen algunas de las principales dificultades que conlleva la aplicación de la misma en la industria y se proponen variantes, para, a pesar de ellas, obtener modelos que satisfagan las expectativas de sus futuros usuarios. En la validación se recomiendan, además de las pruebas que típicamente se hacen en la práctica de la identificación de sistemas, otros análisis sobre los modelos obtenidos, dada la variabilidad estocástica de la variable presión diferencial.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: This article addresses the problem of identifying differential pressure in an air handling unit (AHU), with special emphasis on the validation of the obtained models. Despite of the fact that many authors focus only on the variables: temperature and humidity, due to the proven energy savings of the application of several advanced control strategies for these variables, other researches show energy savings opportunities from air flow control. All those works have as common denominator the use of models, both in the design and in the evaluation of the proposed control strategies. The work presented here highlights the aspects considered during the application of the system identification methodology in the studied process. Some of the main difficulties involved in applying it in a real case of the industry are exposed and variants are proposed to, despite them, obtain models that satisfy the expectation of its future users. In the validation step, in addition to tests typically done in the practice of system identification, other analysis on the obtained models are recommended, given the stochastic variability of differential pressure variable.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Identificación de sistemas]]></kwd>
<kwd lng="es"><![CDATA[Presión diferencial]]></kwd>
<kwd lng="es"><![CDATA[Unidad manejadora de aire]]></kwd>
<kwd lng="es"><![CDATA[Validación]]></kwd>
<kwd lng="en"><![CDATA[System identification]]></kwd>
<kwd lng="en"><![CDATA[Differential pressure]]></kwd>
<kwd lng="en"><![CDATA[Air handling unit]]></kwd>
<kwd lng="en"><![CDATA[Validation]]></kwd>
</kwd-group>
</article-meta>
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