Experimental and numerical studies of biodiesel combustion mechanisms using a laminar counterflow spray premixed flame

Alviso, Darío; Rolon, Juan-Carlos; Scouflaire, Philippe; Darabiha, Nasser

doi:10.1016/j.fuel.2015.02.079

Cited by 26 publications

(16 citation statements)

References 23 publications

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“…1 . Additional details are found in [16,19] . The convergent nozzle is axisymmetric and has an inner diameter of 10 mm.…”

Section: Methodsmentioning

confidence: 99%

“…NO x chemistry from GRI-Mech 3.0 [23] is considered for predictions of NO x formation. To enable comparison with CH * measurements, the CH * sub-mechanisms used by Alviso et al [19] have been also added. The total chemical mechanism contains 131 species and 916 reactions.…”

Section: Numerical Setupmentioning

confidence: 99%

“…According to Peters [15] , instantaneous flame element embedded in a turbulent flow has the structure of a 1-D strained laminar flame. This elemental configuration, retained in many studies on gaseous [16,17] or two-phase flow flames [18,19] is attractive to understand such fundamental coal combustion properties.…”

Section: Introductionmentioning

confidence: 99%

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Experimental and numerical studies of pulverized coal devolatilization and oxidation in strained methane/air flames

Meng

Zabrodiec

Scouflaire

et al. 2017

Proceedings of the Combustion Institute

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To cite this version:Meng Xia, Diego Zabrodiec, Philippe Scouflaire, Benoît Fiorina, Nasser Darabiha. Experimental and numerical studies of pulverized coal devolatilization and oxidation in strained methane/air flames. AbstractExperimental and numerical investigations of the combustion of a methane/air mixture fed with coal particles are performed. The retained configuration is a laminar 1-D strained flame impinging a wall. The wall surface promotes the formation of a methane/air flame front parallel to the stagnation plane. Coal particles oxidation takes place in the hot region between the flame front and the wall. Laser induced fluorescence PLIF measurements of OH radical and imaging of CH * , C * 2 spontaneous emission are performed to identify the chemical flame structure. The inlet fresh gas boundary conditions are well characterized in the experiments in terms of gas velocity but also number of coal particles and mean particle diameter. These conditions are used to perform numerical simulations with the 1-D REGATH code developed at EM2C laboratory. The governing equations are fully coupled between gas and particle phase. Detailed chemical kinetics based on USC-Mech II reaction scheme, NO x chemistry and OH * /CH * /C * 2 sub-mechanisms are considered. The numerical predictions showed good agreement with the experimental data. The analysis of obtained results confirmed that the composition of volatile species of coal has a significant influence on the CH * and C * 2 concentration in the post-flame region. Finally, the effects of volatile matter composition, strain rate and particle size on the NO x , C 2 H 2 and C 6 H 6 formation are studied.

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“…1 . Additional details are found in [16,19] . The convergent nozzle is axisymmetric and has an inner diameter of 10 mm.…”

Section: Methodsmentioning

confidence: 99%

Section: Numerical Setupmentioning

confidence: 99%

See 1 more Smart Citation

Experimental and numerical studies of pulverized coal devolatilization and oxidation in strained methane/air flames

Meng

Zabrodiec

Scouflaire

et al. 2017

Proceedings of the Combustion Institute

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“…This code includes detailed thermochemical and transport properties and takes into account detailed chemistry (Candel et al, 2011). The GRI 3.0 (Smith et al, 2000) mechanism, including 53 species and 325 elementary reactions, is augmented with OH Ã -and CH Ã -related reactions (Alviso et al, 2015;Smith et al, 2002). This augmented mechanism includes the OH Ã and CH Ã formation reactions (CH þ O2…”

Section: Numerical Simulationsmentioning

confidence: 99%

“…CO 2 , CH 4 ) and k j the corresponding quenching reaction rate. The quantities A 21 and k j can be found in the chemical reaction mechanism (see Smith et al (2002); Alviso et al (2015)). An integration of the emission intensity profiles I i over the numerical domain gives the chemiluminescence intensity of a unit flame surface area.…”

Section: Numerical Simulationsmentioning

confidence: 99%

Chemiluminescence of Burner-Stabilized Premixed Laminar Flames

Ding

Durox

Darabiha

et al. 2019

Combustion Science and Technology

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A review of electrical properties of biodiesel and its blends: experimental data, prediction models and applications

Alviso

Corach

2023

Biofuels Bioprod Bioref

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Biodiesel is widely used pure or mixed with diesel fossil fuel in diesel engines. Standards for determining biodiesel quality establish limits for the values of several physicochemical properties. However, the procedures to determine many properties are time-consuming and demand specialized personnel and expensive equipment. Other methods to characterize biodiesel, such as electrical methods, are particularly interesting. Measurements of electrical properties (permittivity and conductivity) give valuable information about biodiesel, its feedstocks, and its blends with fossil fuel diesel, and solve the usual cost and time drawbacks. This work aims to present a thorough and systematic review of the literature on applications of electrical properties measurements of biodiesel, its feedstocks, and mixtures with other fuels. An overview of the experimental data, typical ranges of values, prediction models, and applications is presented and analyzed in detail, emphasizing blends of biodiesel with fossil fuel diesel. Correlations with important properties (kinematic viscosity, methanol content) are reviewed. Applications include transesterification monitoring, biodiesel aging, the detection of contaminants and electromagnetic heating. This research aimed to determine whether electrical properties are a valuable tool for the biodiesel industry, and what applications may be realized in light of current scientific development. It was determined that, in the current state of research, permittivity measurements could be used to accurately determine the amount of diesel and biodiesel in mixtures.

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Experimental and numerical studies of biodiesel combustion mechanisms using a laminar counterflow spray premixed flame

Cited by 26 publications

References 23 publications

Experimental and numerical studies of pulverized coal devolatilization and oxidation in strained methane/air flames

Experimental and numerical studies of pulverized coal devolatilization and oxidation in strained methane/air flames

Chemiluminescence of Burner-Stabilized Premixed Laminar Flames

A review of electrical properties of biodiesel and its blends: experimental data, prediction models and applications

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