Journal ArticleDOI
Measurements of Emissions and Radiation for Methane Combustion within a Porous Medium Burner
Reads0
Chats0
TLDR
In this paper, the results of an experimental investigation of methane-air combustion within a porous medium burner for various equivalence ratios and flow rates are presented, and the results indicate that CO and NOx, emissions increase with flame speed.Abstract:
In this paper, we report the results of an experimental investigation of methane-air combustion within a porous medium burner for various equivalence ratios and flow rates. Measurements of emissions and radiant output are presented. The results indicate that CO and NOx, emissions increase with flame speed. For a given equivalence ratio, however, NOx, emissions are fairly constant over the range of flame speed studied. The radiant output increases but the radiant thermal efficiency decreases with flame speed.read more
Citations
More filters
Journal ArticleDOI
Combustion of hydrocarbon fuels within porous inert media
TL;DR: In this article, the effects of the porous matrix on reaction rates, flammability limits, and flame stabilization are investigated for both single-stage and multi-stage burners.
Journal ArticleDOI
Porous burners for lean-burn applications
Susie Wood,Andrew T. Harris +1 more
TL;DR: In this paper, a review of the literature on lean methane combustion in porous burners is presented, with an emphasis on practical aspects of burner design and operation and the application of the technology to real-world problems.
Journal ArticleDOI
Heat recirculation and heat transfer in porous burners
Amanda J Barra,Janet L. Ellzey +1 more
TL;DR: In this paper, the heat recirculation in a porous burner is analyzed using a one-dimensional time-dependent formulation with complete chemistry, where heat is recirculated through solid conduction and solid-to-solid radiation from the matrix downstream of a flame to the matrix upstream of the flame.
Journal ArticleDOI
Numerical and experimental investigation of matrix-stabilized methane/air combustion in porous inert media
TL;DR: In this paper, the authors used a pseudohomogeneous heat transfer and flow model for the porous material to investigate combustion in porous medium burners, which is characterized by higher burning rates, increased flame stability, and lower combustion zone temperatures, leading to a reduction in NOx formation.
Journal ArticleDOI
Numerical study of the effects of material properties on flame stabilization in a porous burner
TL;DR: In this article, the results from a one-dimensional computational study on flame stabilization in a two-section porous burner are predicted for a range of equivalence ratios and are compared to experimental values.
References
More filters
Journal ArticleDOI
A theoretical study on an excess enthalpy flame
TL;DR: In this article, a further theoretical analysis was performed on the excess enthalpy flame system proposed by Takeno and Sato to burn mixtures of low heat content, and the analysis was extended to include effects of the finite length of the porous solid inserted for internal heat recirculation, so as to predict the flammability limit.
Journal ArticleDOI
An experimental study on stability and combustion characteristics of an excess enthalpy flame
Y. Kotani,T. Takeno +1 more
TL;DR: In this paper, an experimental study was conducted on the excess enthalpy flame system proposed by Takeno and Sato to burn mixtures of low heat content, and it was found that the flame stabilized ahead of, in, or behind, the combustion tube, depending on flow rate and equivalence ratio.
Journal ArticleDOI
A Numerical Investigation of Premixed Combustion Within Porous Inert Media
TL;DR: In this article, a numerical investigation of premixed combustion within a highly porous inert medium is reported, where results of a numerical model using detailed chemical kinetics and energy exchange between the flowing gas and the porous solid are presented.
Journal ArticleDOI
An experimental and theoretical study of porous radiant burner performance
TL;DR: In this paper, the stability and heat transfer characteristics of lean premixed, methane-air flames embedded in a porous layer were studied experimentally, and the results indicated that stable combustion at elevated flame speeds can be maintained in two different spatial domains: one spanning the upstream half of the porous region and the other in a narrow region near the exit plane.