Investigation on the thermal flame thickness for lean premixed combustion of low calorific H2/CO mixtures within porous inert media

Voss, S.; Mendes, Miguel A.A.; Pereira, José M. C.; Ray, Subhashis; Trimis, D.

doi:10.1016/j.proci.2012.06.044

Cited by 64 publications

(9 citation statements)

References 28 publications

(41 reference statements)

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“…Figure. 13 shows the temperature profile obtained from 1D calculations at atmospheric conditions compared with that from experiments at λ = 1.6. The predicted temperature profile exhibits not the superadiabatic temperature peak due to heat recirculation, in agreement with previous results on highly tortuous structures [8,63,65]. Although, the predicted thermal flame thickness is nearly 5 times larger than that of the laminar free case, the 1D model fails in predicting the considerably larger macroscopic flame thickness observed in the experiments for the three burner geometries.…”

Section: D Numerical Resultssupporting

confidence: 89%

Experimental study, 1D volume-averaged calculations and 3D direct pore level simulations of the flame stabilization in porous inert media at elevated pressure

Bedoya

Dinkov

Habisreuther

et al. 2015

Combustion and Flame

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Section: D Numerical Resultssupporting

confidence: 89%

Experimental study, 1D volume-averaged calculations and 3D direct pore level simulations of the flame stabilization in porous inert media at elevated pressure

Bedoya

Dinkov

Habisreuther

et al. 2015

Combustion and Flame

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“…In [14] studied the burning of syngas under LC conditions in a porous medium. Researchers analyzed the effects of high pressures in flames with LC synthesis gas [15].…”

Section: International Symposium On Innovation and Technology (Siintec)mentioning

confidence: 99%

Evaluation of Soot Formation in Syngas Confined Flames on the Oec Using Lean Conditions and Acetylene Doping

Wilfinger¹,

Neves²,

Santos³

2021

Blucher Engineering Proceedings

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The combustion process will continue to be one of the main sources of energy for some time. However, this process causes environmental impacts with its use, which brings global problems such as the greenhouse effect and particulate emissions, such as soot. Therefore, studies are needed to make more sustainable and efficient combustion processes. With this in mind, the use of biomass gasification has been studied, resulting in a fuel known as syngas, composed largely of hydrogen and carbon monoxide, which, as it comes from biomass, has a reduced effect on emissions. Studies of combustion are also carried out in lean conditions that allow reduced emissions. In this context, the work aims to present the experimental study of the correlation between syngas use, the oxygen enhanced combustion (OEC) technique in lean conditions with acetylene doping, in a confined diffuse flame and its associated effects on soot formation. The laser light extinction technique was used to measure the concentration of soot. Soot concentration were evaluated in equivalence ratios of 0.7 and 1.0, 21 and 30% of volumetric oxygen content in the oxidant and acetylene doping of 5% (by volume). Analyzing the results in the condition of using OEC associated with lean conditions in syngas burning, it was noticed an increase in the soot concentration trend compared to the result without enrichment.

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“…Therefore, the predicted outlet temperature for both LTE and LTNE models in Eqs. (23a) and (24), respectively, may be expressed as:…”

Section: Effects Of Operating Conditionsmentioning

confidence: 99%

Simulation of complete liquid–vapour phase change process inside porous evaporator using local thermal non-equilibrium model

Mendes

Trimis

Ray

2015

International Journal of Thermal Sciences

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Investigation on the thermal flame thickness for lean premixed combustion of low calorific H2/CO mixtures within porous inert media

Cited by 64 publications

References 28 publications

Experimental study, 1D volume-averaged calculations and 3D direct pore level simulations of the flame stabilization in porous inert media at elevated pressure

Experimental study, 1D volume-averaged calculations and 3D direct pore level simulations of the flame stabilization in porous inert media at elevated pressure

Evaluation of Soot Formation in Syngas Confined Flames on the Oec Using Lean Conditions and Acetylene Doping

Simulation of complete liquid–vapour phase change process inside porous evaporator using local thermal non-equilibrium model

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