Numerical Assessment of the Combustion of Methane–Hydrogen–Air Mixtures in Micro-Scale Conditions

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dc.contributor.affiliationNieto-Londoño C., Escuela de Ingenierías, Universidad Pontificia Bolivariana, Medellín, 050030, Colombia
dc.contributor.affiliationSilva-López W., Escuela de Ingenierías, Universidad Pontificia Bolivariana, Medellín, 050030, Colombia
dc.contributor.affiliationGómez-Velásquez N., Programa de Ingeniería Industrial, Facultad de Ingenierías, Universidad de Medellín, Medellín, 050026, Colombia
dc.contributor.authorNieto-Londoño C.
dc.contributor.authorSilva-López W.
dc.contributor.authorGómez-Velásquez N.
dc.date.accessioned2025-09-08T14:23:54Z
dc.date.available2025-09-08T14:23:54Z
dc.date.issued2025
dc.descriptionMethane–hydrogen–air mixtures present a viable alternative to conventional fuels, reducing CO2 emissions while maintaining high energy density. This study numerically investigates their combustion characteristics in millimeter-scale reactors, focusing on flame stabilisation and combustion dynamics in confined spaces. A species transport model with volumetric reactions incorporated a detailed kinetic mechanism with 16 species and 41 reactions. The simulations employed a laminar flow model, second-order upwind discretisation, and SIMPLE algorithm for pressure–velocity coupling. The key parameters analysed include equivalence ratio, hydrogen volume fraction, inlet velocity, and gas pressure and their impact on fuel conversion efficiency and heat release was evaluated. The results indicate that hydrogen enrichment enhances flame stability and combustion efficiency, with optimal performance over 40% hydrogen content. Additionally, increased outlet pressure raises flame temperature by 15%, while larger reactor diameters reduce heat losses, improving combustion efficiency by 20%. Emissions of CO decrease significantly at higher hydrogen fractions, demonstrating the potential for cleaner combustion. These findings support the integration of methane–hydrogen mixtures into sustainable energy systems, providing insights for designing efficient, low-emission micro-combustors. © 2025 by the authors.
dc.identifier.doi10.3390/pr13030794
dc.identifier.instnameinstname:Universidad de Medellínspa
dc.identifier.issn22279717
dc.identifier.reponamereponame:Repositorio Institucional Universidad de Medellínspa
dc.identifier.repourlrepourl:https://repository.udem.edu.co/
dc.identifier.urihttp://hdl.handle.net/11407/9129
dc.language.isoeng
dc.publisher.facultyFacultad de Ingenieríasspa
dc.publisher.programIngeniería en Energíaspa
dc.relation.citationissue3
dc.relation.citationvolume13
dc.relation.isversionofhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-105001118565&doi=10.3390%2fpr13030794&partnerID=40&md5=22b8a7bd316a0028521cd3a5598b1710
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dc.rights.accesoAll Open Access
dc.rights.accesoGold Open Access
dc.rights.accessrightsinfo:eu-repo/semantics/openAccess
dc.sourceProcesses
dc.sourceProcess.
dc.sourceScopus
dc.subjectComputational fluid dynamics
dc.subjectFlame stability
dc.subjectMethane–hydrogen–air mixture
dc.subjectMicro-combustion
dc.subjectCombustors
dc.subjectHydrogen fuels
dc.subjectPremixed flames
dc.subjectVortex flow
dc.subjectCombustion efficiencies
dc.subjectComputational fluid
dc.subjectCondition
dc.subjectFlame combustion
dc.subjectFlame stability
dc.subjectFluid-dynamics
dc.subjectHydrogen-air mixture
dc.subjectMethane hydrogens
dc.subjectMethane–hydrogen–air mixture
dc.subjectMicro combustion
dc.subjectLaminar flow
dc.titleNumerical Assessment of the Combustion of Methane–Hydrogen–Air Mixtures in Micro-Scale Conditions
dc.typeArticle
dc.type.localArtículospa
dc.type.versioninfo:eu-repo/semantics/publishedVersion

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