<?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>2602-8492</journal-id>
<journal-title><![CDATA[Revista Técnica energía]]></journal-title>
<abbrev-journal-title><![CDATA[Revista Técnica energía]]></abbrev-journal-title>
<issn>2602-8492</issn>
<publisher>
<publisher-name><![CDATA[Operador Nacional de Electricidad CENACE]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2602-84922024000100090</article-id>
<article-id pub-id-type="doi">10.37116/revistaenergia.v20.n2.2024.594</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Parámetros para el Proceso de Molienda en Molinos Verticales Usando Métodos de Optimización]]></article-title>
<article-title xml:lang="en"><![CDATA[Parameters for the Grinding Process in Vertical Mills Using Optimization Methods]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Paredes]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cepeda]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lozada]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Escuela Politécnica Nacional  ]]></institution>
<addr-line><![CDATA[Quito ]]></addr-line>
<country>Ecuador</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Escuela Politécnica Nacional  ]]></institution>
<addr-line><![CDATA[Quito ]]></addr-line>
<country>Ecuador</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Unión Cementera Nacional  ]]></institution>
<addr-line><![CDATA[Riobamba ]]></addr-line>
<country>Ecuador</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2024</year>
</pub-date>
<volume>20</volume>
<numero>2</numero>
<fpage>90</fpage>
<lpage>97</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.senescyt.gob.ec/scielo.php?script=sci_arttext&amp;pid=S2602-84922024000100090&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.senescyt.gob.ec/scielo.php?script=sci_abstract&amp;pid=S2602-84922024000100090&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.senescyt.gob.ec/scielo.php?script=sci_pdf&amp;pid=S2602-84922024000100090&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: Los molinos verticales de rodillos (VRM), son máquinas muy utilizadas para moler materia prima en fábricas dedicadas a la extracción y procesamiento de minerales. Cualquier máquina ocupada para moler o triturar consume alrededor del 30 o 40% de la energía de una fábrica. La presión de carga, la velocidad de rotación de la mesa, el contenido de humedad, temperatura de salida del molino y presión de los rodillos son variables que se pueden controlar para disminuir el consumo de energía especifica (Ecs). Este trabajo plantea un problema de optimización con el fin de reducir el consumo energético de un VRM utilizado para producir cemento y encontrar los parámetros óptimos de las variables de operación. Se utilizan varios paquetes para resolver el problema de programación no lineal, obteniendo resultados muy buenos respecto a la precisión y velocidad de convergencia, pero se usan aquellos proporcionados por el paquete Pyomo ya que obtienen resultados más exactos. Comparando el resultado de la función objetivo con el consumo energético de una empresa cementera en Ecuador se concluye que los parámetros optimizados son capaces de reducir en un 25% el consumo energético garantizando una producción mínima de 2200 toneladas de cemento diarias por lo que el modelo se valida correctamente.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: Vertical roller mills, (VRM), are widely used for grinding raw materials in factories engaged in the extraction and processing of minerals. Any machine used for grinding or crushing consumes around 30 to 40% of the energy of a factory. The loading pressure, table rotation speed, moisture content, outlet temperature and pressure rollers are variables that can be controlled to decrease the specific energy consumption Ecs. This paper poses an optimization problem in order to reduce the energy consumption of a VRM used to produce cement and to find the optimal parameters of the operating variables. Several packages are used to solve the nonlinear programming problem, with very good results in terms of accuracy and speed of convergence, but those provided by the Pyomo package are used because it obtains more accurate results. Comparing the result of the objective function with the energy consumption of a well-known cement company in Ecuador, it is concluded that the optimized parameters are able to reduce by 25% the energy consumption guaranteeing a minimum production of 2200 tons of cement per day, so the model is correctly validated.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[eficiencia]]></kwd>
<kwd lng="es"><![CDATA[proceso de molienda]]></kwd>
<kwd lng="es"><![CDATA[optimización]]></kwd>
<kwd lng="es"><![CDATA[molino vertical]]></kwd>
<kwd lng="en"><![CDATA[efficiency]]></kwd>
<kwd lng="en"><![CDATA[grinding process]]></kwd>
<kwd lng="en"><![CDATA[optimization]]></kwd>
<kwd lng="en"><![CDATA[vertical mill]]></kwd>
</kwd-group>
</article-meta>
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