<?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>0121-750X</journal-id>
<journal-title><![CDATA[Ingeniería]]></journal-title>
<abbrev-journal-title><![CDATA[ing.]]></abbrev-journal-title>
<issn>0121-750X</issn>
<publisher>
<publisher-name><![CDATA[Universidad Distrital Francisco José de Caldas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0121-750X2022000100202</article-id>
<article-id pub-id-type="doi">10.14483/23448393.18127</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Estudio de desempeño de distintos perfiles de álabe de una turbina eólica para aprovechar vientos de baja velocidad]]></article-title>
<article-title xml:lang="en"><![CDATA[Performance Study of Different Blade Profiles of a Wind Turbine to Harness of Low-Speed Winds]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gallo]]></surname>
<given-names><![CDATA[Luis A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Chica]]></surname>
<given-names><![CDATA[Edwin L.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Florez]]></surname>
<given-names><![CDATA[Elkin]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Antioquia  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Antioquia  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de Pamplona  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2022</year>
</pub-date>
<volume>27</volume>
<numero>1</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0121-750X2022000100202&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0121-750X2022000100202&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0121-750X2022000100202&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Contexto: Las turbinas eólicas de eje vertical, y en particular las turbinas de arrastre tipo Savonius, áventajan a los otros tipos de turbinas en aplicaciones que comprenden vientos erráticos y de baja velocidad. Si bien su eficiencia esta entre las más bajas, esto puede verse compensado con sus bajos costos, lo que las convierte en una alternativa sostenible y atractiva para este tipo de aplicaciones. En esta investigación se busca seleccionar la geometría de mayor rendimiento para el alabe de una turbina eólica tipo Savonius.  Método: Para ello, se analizan numéricamente diversas configuraciones geométricas empleadas en este tipo de turbinas, las cuales fueron consultadas en la literatura. Todos los modelos de perfil son estudiados bajo los mismos parámetros y modelos de dinámica de fluidos computacional a través del software ANSYS Fluent.  Resultados: A través de las simulaciones computacionales se estiman las condiciones de optimo rendimiento de cada una de las geometrías. Dichas condiciones permiten comparar, bajo los mismos términos, el desempeño de los perfiles e identificar los de mayor rendimiento. Se determina que el perfil semicircular convencional y el conocido como Bach modificado presentan coeficientes de potencia de 0,287 y 0,395 respectivamente, lo que representa un aumento en su rendimiento del 37,8 %.  Conclusiones: Este resultado superior motiva a un análisis detallado del perfil Bach modificado qué permita encontrar las proporciones geométricas óptimas para su desempeño aerodinámico.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Context:  Vertical-axis wind turbines, and Savonius-type turbines in particular, outstrip other types of turbines in applications that include erratic and low-speed winds. Although their efficiency is among the lowest, this can be compensated by their low cost, turning them into a sustainable alternative which is also appealing for this type of applications. This research seeks to select the highest-performance geometry for the blade of a Savonius-type wind turbine.  Method:  To this effect, various geometric configurations used in this type of turbines, which were consulted in the literature, are numerically analyzed. All the profile models are studied under the same computational fluid dynamics parameters and models through the ANSYS Fluent software.  Results: Through computational simulations, the optimal performance conditions of each of the geometries are estimated. These conditions allow comparing the performance of the profiles under the same terms, as well as identifying the ones with the highest performance. It is determined that the conventional semicircular profile and the one known as the modified Bach have power coefficients of 0,287 and 0,395, respectively, which represents a performance increase of 37,8 %.  Conclusions:  These superior results motivate a detailed analysis of the modified Bach profile which allows finding the optimal geometric proportions for its aerodynamic performance.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[alabe]]></kwd>
<kwd lng="es"><![CDATA[baja velocidad]]></kwd>
<kwd lng="es"><![CDATA[CFD]]></kwd>
<kwd lng="es"><![CDATA[energía eólica]]></kwd>
<kwd lng="es"><![CDATA[turbina Savonius.]]></kwd>
<kwd lng="en"><![CDATA[blade]]></kwd>
<kwd lng="en"><![CDATA[CFD]]></kwd>
<kwd lng="en"><![CDATA[low speed]]></kwd>
<kwd lng="en"><![CDATA[Savonius turbine]]></kwd>
<kwd lng="en"><![CDATA[wind power.]]></kwd>
</kwd-group>
</article-meta>
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