RT info:eu-repo/semantics/article
T1 Experimental, kinetic modeling and morphologic study of the premixed combustion of hydrogen/methane mixtures
A1 Reyes Serrano, Miriam
A1 Sastre Zamora, Rosaura
A1 Giménez Olavarría, Blanca
A1 Sesma Gutiérrez, Clara
K1 Hydrogen
K1 Hidrógeno
K1 Methane
K1 Metano
K1 Combustion bomb
K1 Combustion
K1 Motores de combustión interna
K1 Gas (Combustible)
K1 Cellularity
K1 Burning velocity
K1 Gases - Combustión
K1 3303.06 Tecnología de la Combustión
K1 2205.04 Mecánica de Fluidos
AB In this work, an experimental study and kinetic characterization of the combustion process and a morphologic study of hydrogen/methane–air mixtures are presented. The experimental study was performed in an optical access cylindrical constant-volume combustion bomb. This bomb is equipped to register the instantaneous pressure during combustion and records the combustion images using the high-speed Schlieren optical technique. This provides straightforward information to compute the flame propagation speed and direct evidence of the apparition of cellularity on the flame front. Through the images of the combustion process, it is possible to conduct a morphological study of the process using a flame monitoring model. Simultaneously, by means of a two-zone thermodynamical model, with the temporal evolution of pressure as the main intake, significant parameters are determined during the combustion process of different fuels under premixed conditions: burning velocity, rate of combustion, burned and unburned temperature, burned mass fraction, and rate of heat release, among others. Experimental results are compared with kinetic modeling results obtained with the Cantera package using the Gri-Mech 3.0 kinetic mechanism. Results show that a greater percentage of hydrogen in the fuel mixture increases the burning velocity and the cellularity of the flame front surface. At the same time, leaner mixtures and higher equivalence ratios enhance the apparition of the cellularity onset in the flames. Burning velocity increases with the increase in the initial temperature and the fuel/air mixture equivalence ratio. All the results obtained were validated with other data from the literature.
PB MDPI
SN 1996-1073
YR 2022
FD 2022
LK https://uvadoc.uva.es/handle/10324/61738
UL https://uvadoc.uva.es/handle/10324/61738
LA eng
NO Energies, 2022, Vol. 15, Nº. 10, 3722
NO Producción Científica
DS UVaDOC
RD 26-dic-2024