<?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>2518-4431</journal-id>
<journal-title><![CDATA[Investigación & Desarrollo]]></journal-title>
<abbrev-journal-title><![CDATA[Inv. y Des.]]></abbrev-journal-title>
<issn>2518-4431</issn>
<publisher>
<publisher-name><![CDATA[UNIVERSIDAD PRIVADA BOLIVIANA]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2518-44312025000100107</article-id>
<article-id pub-id-type="doi">10.23881/idupbo.025.1-9i</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[MODELADO COMPUTACIONAL DE LA COMBUSTIÓN DE MEZCLAS DE HIDRÓGENO VERDE E HIDROCARBUROS PARA SU EVALUACIÓN ENERGÉTICA Y DE EMISIONES DE CO2]]></article-title>
<article-title xml:lang="en"><![CDATA[COMPUTATIONAL SIMULATION OF THE COMBUSTION OF GREEN HYDROGEN - HYDROCARBONS MIXTURES FOR ENERGY PERFORMANCE AND CARBON DIOXIDE EMISSIONS]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Carrión-Salazar]]></surname>
<given-names><![CDATA[Matías Andrés]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sempértegui-Tapia]]></surname>
<given-names><![CDATA[Daniel Felipe]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Chávez-Toro]]></surname>
<given-names><![CDATA[Cristian]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de La Serena Departamento de Ingeniería Mecánica ]]></institution>
<addr-line><![CDATA[La Serena ]]></addr-line>
<country>Chile</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Privada Boliviana (UPB) Laboratorio de Energías Alternativas (LEA) ]]></institution>
<addr-line><![CDATA[Cochabamba ]]></addr-line>
<country>Bolivia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2025</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2025</year>
</pub-date>
<volume>25</volume>
<numero>1</numero>
<fpage>107</fpage>
<lpage>117</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.bo/scielo.php?script=sci_arttext&amp;pid=S2518-44312025000100107&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.bo/scielo.php?script=sci_abstract&amp;pid=S2518-44312025000100107&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.bo/scielo.php?script=sci_pdf&amp;pid=S2518-44312025000100107&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN Bolivia, al igual que otros países en desarrollo, enfrenta el reto de reducir su dependencia de combustibles fósiles y avanzar hacia una matriz energética más limpia. En este contexto, el hidrógeno verde surge como una alternativa viable, aunque su implementación aún requiere investigación local. Países como Chile ya han dado pasos importantes mediante políticas como la Estrategia Nacional del Hidrógeno Verde, que promueve su uso en diversas aplicaciones, incluyendo la combustión. Este trabajo se enmarca en esa línea de desarrollo, presentando el modelado computacional de la combustión de mezclas de hidrógeno verde con cuatro hidrocarburos: metano, gas licuado de petróleo (GLP), octano y etanol. Para esto, se desarrolla un código en Python para estimar propiedades fisicoquímicas a lo largo del rango de mezclas, las cuales se integran en simulaciones termodinámicas en OpenModelica, utilizando la biblioteca ThermoSysPro. Posteriormente, los resultados son procesados mediante otro código en Python, permitiendo analizar fracciones másicas de productos de combustión en condiciones estequiométricas con exceso de 10% de aire, el grado de descarbonización en función de la fracción y flujo másico de hidrógeno, la energía generada con y sin considerar pérdidas térmicas, los poderes caloríficos superior e inferior (PCS y PCI), y el índice de Wobbe en los casos de metano y GLP. Los resultados muestran que la descarbonización depende directamente del contenido de carbono del hidrocarburo base, y que la adición de hidrógeno incrementa la energía generada por unidad de masa, reforzando su potencial como vector energético en la transición hacia sistemas más sostenibles.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Bolivia, like other developing countries, faces the challenge of reducing its dependence on fossil fuels and moving toward a cleaner energy matrix. In this context, green hydrogen emerges as a viable alternative, although its implementation still requires local research. Countries such as Chile have already taken significant steps through policies like the National Green Hydrogen Strategy, which promotes its use in various applications, including combustion. This work aligns with that line of development by presenting the computational modeling of the combustion of green hydrogen blended with four selected hydrocarbons: methane, liquefied petroleum gas (LPG), octane, and ethanol. For this purpose, a Python code was developed to estimate the physicochemical properties across the entire range of mixtures, which are then integrated into thermodynamic simulations performed in OpenModelica using the ThermoSysPro library. Subsequently, the results are processed using another Python code, enabling the analysis of mass fractions of combustion products under stoichiometric conditions with a 10% excess of air, the degree of decarbonization as a function of hydrogen mass fraction and flow rate, the energy generated with and without accounting for thermal losses, the higher and lower heating values (HHV and LHV), and the Wobbe index in the cases of methane and LPG. The results show that decarbonization depends directly on the carbon content of the base hydrocarbon, and that the addition of hydrogen increases the energy generated per unit mass, reinforcing its potential as an energy vector in the transition toward more sustainable systems.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Hidrogeno verde]]></kwd>
<kwd lng="es"><![CDATA[Combustión]]></kwd>
<kwd lng="es"><![CDATA[Evaluación energética]]></kwd>
<kwd lng="es"><![CDATA[Emisiones de CO2]]></kwd>
<kwd lng="en"><![CDATA[Green hydrogen]]></kwd>
<kwd lng="en"><![CDATA[Combustion]]></kwd>
<kwd lng="en"><![CDATA[Energy performance]]></kwd>
<kwd lng="en"><![CDATA[Carbon dioxide emissions]]></kwd>
</kwd-group>
</article-meta>
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