<?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>1405-7743</journal-id>
<journal-title><![CDATA[Ingeniería, investigación y tecnología]]></journal-title>
<abbrev-journal-title><![CDATA[Ing. invest. y tecnol.]]></abbrev-journal-title>
<issn>1405-7743</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Facultad de Ingeniería]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1405-77432016000100035</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Evaluación de los factores de influencia en el modelo de Luikov durante el secado de ladrillo]]></article-title>
<article-title xml:lang="en"><![CDATA[Evaluation of Influence Factors in Luikov Model During Drying of Red Brick]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martines-López]]></surname>
<given-names><![CDATA[Enrique]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lira-Cortés]]></surname>
<given-names><![CDATA[Leonel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Centro Nacional de Metrología Dirección de Termometría ]]></institution>
<addr-line><![CDATA[ Querétaro]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Centro Nacional de Metrología Dirección de Termometría ]]></institution>
<addr-line><![CDATA[ Querétaro]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>03</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>03</month>
<year>2016</year>
</pub-date>
<volume>17</volume>
<numero>1</numero>
<fpage>35</fpage>
<lpage>44</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1405-77432016000100035&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1405-77432016000100035&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1405-77432016000100035&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: El estudio de la transferencia de calor y de humedad en el secado de materiales sólidos porosos es importante, debido al amplio interés en reducir el agua presente en los materiales, ya que el exceso de humedad tiene efectos adversos en los materiales. En la actualidad, la investigación del secado se realiza de manera experimental, ya que no se cuenta con un modelo universal de secado que aplique satisfactoriamente a todos los materiales sólidos. Los modelos desarrollados se aplican a grupos restringidos de materiales. Uno de los modelos más aceptados para describir la transferencia de humedad en materiales capilares porosos es el modelo de Luikov, el cual se deriva de la termodinámica de procesos irreversibles. Además de la extensa aplicación de este modelo, hace falta identificar las propiedades termofísicas que tienen mayor influencia en los perfiles de secado, ya que existen pocas comparaciones contra datos experimentales. En este trabajo se utilizó la solución del modelo de Luikov obtenida por Liu et al. (1991) para alcanzar los perfiles de humedad en el proceso de secado de muestras de ladrillo a diferentes temperaturas, en donde se realizó una evaluación de los factores de influencia que afectan al perfil obtenido. Se encontró en el análisis, que la difusión es uno de los principales mecanismos que controla la transferencia de humedad. También el modelo se validó experimentalmente en muestras de ladrillo secados a temperaturas de 60 y 80°C; asimismo los resultados teóricos y experimentales concuerdan satisfactoriamente en la región final del secado, lo cual es útil en la determinación del contenido de humedad.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: The heat and moisture transfer in the drying of porous solid materials is important, since excessive moisture has adverse effects on these materials; then, it exist a wide interest on the reduction of moisture in them. Nowadays, the research of the drying process is carried out both theoretical, as experimentally, because does not exist a universal model which satisfactorily describe the drying process of all kind of solid materials. The developed models apply to restricted groups of materials. To describe the moisture transfer in capillary porous materials, one of the more accepted theoretical models is the Luikov model, which is derived from the principles of thermodynamics of irreversible processes. This model has been applied to many materials; however, to describe the moisture transfer in capillary porous materials, it is needed a comprehensive analysis to identify the thermophysical properties which have major influence in the drying profiles. Also, it is needed to validate the model for those materials in which the model is applied. In this work, the solution of Luikov model (as obtained by Liu et al., 1991) was used to obtain moisture profiles during the drying of brick at different temperatures. Also, an evaluation of the influence factors which affects to the obtained moisture profiles was carried out. It was found that one of the most important mechanisms which control the drying process is the diffusion of moisture. Also, the experimental validation using brick was performed at temperatures of 60 and 80°C; the theoretical and experimental results agree in the falling rate period, which is useful in the moisture content determination.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[modelo de Luikov]]></kwd>
<kwd lng="es"><![CDATA[contenido de humedad]]></kwd>
<kwd lng="es"><![CDATA[secado]]></kwd>
<kwd lng="es"><![CDATA[factores de influencia]]></kwd>
<kwd lng="es"><![CDATA[ladrillo]]></kwd>
<kwd lng="en"><![CDATA[Luikov model]]></kwd>
<kwd lng="en"><![CDATA[moisture potential]]></kwd>
<kwd lng="en"><![CDATA[drying]]></kwd>
<kwd lng="en"><![CDATA[influence factors]]></kwd>
<kwd lng="en"><![CDATA[brick]]></kwd>
</kwd-group>
</article-meta>
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