<?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>2007-0934</journal-id>
<journal-title><![CDATA[Revista mexicana de ciencias agrícolas]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Mex. Cienc. Agríc]]></abbrev-journal-title>
<issn>2007-0934</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-09342015000801715</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Diseño, construcción y evaluación de un sistema de seguimiento solar para un panel fotovoltaico]]></article-title>
<article-title xml:lang="en"><![CDATA[Design, construction and evaluation of a solar tracking system for a photovoltaic panel]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arreola Gómez]]></surname>
<given-names><![CDATA[Rubisel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Quevedo Nolasco]]></surname>
<given-names><![CDATA[Abel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castro Popoca]]></surname>
<given-names><![CDATA[Martiniano]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bravo Vinaja]]></surname>
<given-names><![CDATA[Ángel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Reyes Muñoz]]></surname>
<given-names><![CDATA[David]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Colegio de Postgraduados  ]]></institution>
<addr-line><![CDATA[Texcoco México]]></addr-line>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Internacional en Biosistemas Sustentables A. C.  ]]></institution>
<addr-line><![CDATA[Texcoco México]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2015</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2015</year>
</pub-date>
<volume>6</volume>
<numero>8</numero>
<fpage>1715</fpage>
<lpage>1727</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-09342015000801715&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-09342015000801715&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-09342015000801715&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: Entre las fuentes de energías renovables, la energía solar es la más importante, debido a su abundancia, sostenibilidad y completamente libre de costo. Además utilizando un colector solar con seguimiento, la energía total recibida en un día claro puede ser del orden de un 30-45% mayor que para el mismo colector solar estático. Se diseñó y construyó un sistema de seguimiento autónomo y capaz de seguir el movimiento de sol, el cual se acoplo a un panel fotovoltaico para mejorar la eficiencia en la captura de energía. Se evaluó el funcionamiento del dispositivo en términos energéticos, se realizaron tres pruebas de evaluación programándolo para que se oriente al sol a cada 60, 30 y 5 min, y se compararon los resultados con el rendimiento energético de un panel fotovoltaico fijo. El software desarrollado fue funcional para la totalidad del territorio de la República Mexicana y durante todo el año. El mejor rendimiento energético se obtuvo cuando el seguidor solar se orientó al sol cada 60 min, la energía generada fue de 27.98% más respecto al panel fijo, con un gasto energético para su funcionamiento de 1.3% de la ganancia final de energía. Comparando la producción de energía del sistema con la radiación solar global (ISR, por sus siglas en ingles), éste aprovecho 13.27% de la energía disponible, y 2.93% más respecto al panel fijo.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: Among the renewable energy sources, solar energy is the most important, because of its abundance, sustainability and is completely free of charge. Besides, using a solar collector tracking the total energy received on a clear day can be about 30-45% higher than for the same solar collector static. We designed and built a system of autonomous and able to follow the movement of the sun, which was coupled to a photovoltaic panel to improve efficiency in energy capture tracking. Device performance was evaluated in terms of energy, three evaluation tests programming it to be oriented to the sun every 60, 30 and 5 min, and the results were compared with the energy efficiency of a fixed photovoltaic panel. The software was developed for the entire territory of Mexico and throughout the year. The best energy performance is obtained when the solar tracker is oriented to the sun every 60 min, the energy generated was 27.98% compared to the fixed panel, with an energy expenditure for operation of 1.3% of final energy gain. Comparing energy production system with the global solar radiation (ISR), usuing 13.27% of the available energy, and 2.93% on the fixed panel.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[energía solar]]></kwd>
<kwd lng="es"><![CDATA[energía fotovoltaica]]></kwd>
<kwd lng="es"><![CDATA[microcontrolador]]></kwd>
<kwd lng="es"><![CDATA[seguidor solar]]></kwd>
<kwd lng="es"><![CDATA[seguimiento en dos ejes]]></kwd>
<kwd lng="en"><![CDATA[photovoltaics]]></kwd>
<kwd lng="en"><![CDATA[solar energy]]></kwd>
<kwd lng="en"><![CDATA[solar tracker]]></kwd>
<kwd lng="en"><![CDATA[microcontroller]]></kwd>
<kwd lng="en"><![CDATA[two-axis tracking]]></kwd>
</kwd-group>
</article-meta>
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