Plasma assisted combustion of methane-air mixtures: Validation and reduction

Cheng, L.; Barleon, N.; Cuenot, Bénédicte; Vermorel, Olivier; Bourdon, Anne

doi:10.1016/j.combustflame.2022.111990

Cited by 36 publications

(14 citation statements)

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“…Current research in plasma-assisted combustion is devoted to study ignition, − flame stabilization and combustion enhancement, ,− kinetics and mechanism development, ,− ,− process visualization, ,,,, species diagnostics, ,,− ,− ,− electric field and/or electron density measurements, ,, and numerical simulation, ,− ,,,, using different types of plasma generation, e.g., with repetitively pulsed nanosecond, − ,,,,− ,, dielectric barrier discharge, ,,,,,, gliding arc, , and microwave activation. Fuels include hydrogen, ,, methane, ,,,,,,,,,,, ethene, ,…”

Section: Developments For Systems and Applicationsmentioning

confidence: 99%

“…Fuels include hydrogen, ,, methane, ,,,,,,,,,,, ethene, , propane, , n -heptane, and other hydrocarbons, methanol, DME, and ammonia, , and reaction systems include cells and reactors, ,,− ,, flames, − ,,,− and combustors. ,, Further aspects have been studied regarding the ion chemistry, influences of the balance gases (Ar, He, N 2 ) on the chemical kinetics, and spectroscopic signatures of excited states . Some of the contributions have also addressed pyrolysis ,, and partial oxidation. , …”

Section: Developments For Systems and Applicationsmentioning

confidence: 99%

“…586 Some of the contributions have also addressed pyrolysis 589,595,596 and partial oxidation. 587 To improve an in-depth understanding of plasma strategies for combustion processes, experimental investigations can build on numerous diagnostic techniques (Section 2.1). Interesting research topics concern the presence and concentrations of different neutral and charged species as a function of the respective conditions, as will be highlighted by three recent examples.…”

Section: Combustion and Plasma Activationmentioning

confidence: 99%

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Combustion, Chemistry, and Carbon Neutrality

Kohse‐Höinghaus

2023

Chem. Rev.

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Combustion is a reactive oxidation process that releases energy bound in chemical compounds used as fuels�energy that is needed for power generation, transportation, heating, and industrial purposes. Because of greenhouse gas and local pollutant emissions associated with fossil fuels, combustion science and applications are challenged to abandon conventional pathways and to adapt toward the demand of future carbon neutrality. For the design of efficient, low-emission processes, understanding the details of the relevant chemical transformations is essential. Comprehensive knowledge gained from decades of fossil-fuel combustion research includes general principles for establishing and validating reaction mechanisms and process models, relying on both theory and experiments with a suite of analytic monitoring and sensing techniques. Such knowledge can be advantageously applied and extended to configure, analyze, and control new systems using different, nonfossil, potentially zero-carbon fuels. Understanding the impact of combustion and its links with chemistry needs some background. The introduction therefore combines information on exemplary cultural and technological achievements using combustion and on nature and effects of combustion emissions. Subsequently, the methodology of combustion chemistry research is described. A major part is devoted to fuels, followed by a discussion of selected combustion applications, illustrating the chemical information needed for the future.

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Section: Developments For Systems and Applicationsmentioning

confidence: 99%

Section: Developments For Systems and Applicationsmentioning

confidence: 99%

Section: Combustion and Plasma Activationmentioning

confidence: 99%

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Combustion, Chemistry, and Carbon Neutrality

Kohse‐Höinghaus

2023

Chem. Rev.

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“…The thermal pathway involves an increase in gas temperature, which accelerates chemical reactions and fuel oxidation [13]. The kinetic pathway involves the production of highenergy electrons and ions, which in turn generate active radicals and intermediate species, enabling new reaction routes and accelerating low-temperature fuel oxidation [14]. The transport, or hydrodynamic, pathway involves alterations in local flow velocity due to phenomena like ionic wind [15] and shock wave expansion [16].…”

Section: Introductionmentioning

confidence: 99%

A computational study of a laminar methane–air flame assisted by nanosecond repetitively pulsed discharges

Shao,

Kabbaj,

Lacoste

et al. 2024

J. Phys. D: Appl. Phys.

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Nanosecond repetitively pulsed (NRP) discharges have been considered a promising technique for enhancing combustion efficiency and control. For successful implementation, it is necessary to understand the complex plasma-combustion interactions involving chemical, thermal, and hydrodynamic pathways. This paper aims to investigate the mechanisms enhancing a laminar methane-air flame assisted by NRP discharges by high fidelity simulations of the jet-wall burner employed in a previous experimental study. A phenomenological plasma model is used to represent the plasma energy deposition in two channels: 1) the ultrafast heating and dissociation of O2 resulting from the relaxation of electronically excited N2, and 2) slow gas heating stemming from the relaxation of N2 vibrational states. The flame displacement, key radical distribution and flame response under plasma actuation are compared with experimental results in good agreement. The computational model allows a systematic investigation of the dominant physical mechanism by isolating different pathways. It is found that the kinetic effect from atomic O production dominates the flame dynamics, while the thermal effect plays a minor role. Hydrodynamic perturbations arising from weak shock wave propagation appear to be sensitive to burner geometry and is found to be insignificant in the case under study.

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“…Plasma-assisted methane combustion technology has gained the attention of scholars in recent years [1][2][3] , which can control flame propagation under light, high-speed, and low-temperature conditions and improve ignition reliability [4,5] . Several discharge methods generate low-temperature plasma to accelerate the ignition and assist combustion in plasma-assisted combustion technology, such as microsecond pulse corona discharge [6] , Dielectric Barrier Discharge (DBD), RF discharge, microwave discharge [7] , etc.…”

Section: Introductionmentioning

confidence: 99%

Simulation study of DBD discharge characteristics and active particle-assisted methane combustion

Zhao,

Song,

2023

J. Phys.: Conf. Ser.

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This paper established a model of the coaxial dielectric barrier discharge (DBD). Ar-CH4 is fed into the mixture as a working gas. Using 10.0 kHz as power research in different voltage and dielectric materials and medium thickness has influences on producing active particle mole fraction. The simulation results show that when the voltage increase, the molar concentration of O3 and H energetic particles increase obviously. When the thickness of the medium increases, the molar concentration of O3 and H decreases. When the dielectric constant of the dielectric material increases, the molar concentration of O3 and H also increases. The molar concentration of OH active particles also changed, but the law was unclear. At the same time, when the discharge voltage is 15 kV, the dielectric thickness is 2 mm, the dielectric constant is 3.75, and the DBD discharge is uniform and stable, the molar concentration of O3 and H is 0.069% and 0.056% respectively. The corresponding concentrations of O3 and H active particles were introduced into the established methane combustion reaction model. The study found that the joining of O3 and H energetic particles make the reaction begin to move significantly ahead of time. That has a promoting effect on the rate of the methane combustion reaction. In the methane combustion reaction model with different equivalence ratios, O3 with a molar concentration of 0.069% and H with a molar concentration of 0.056% introduced, it is concluded that these two active particles also have a tremendous promoting effect on the expansion of the thin burning limit of methane.

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Plasma assisted combustion of methane-air mixtures: Validation and reduction

Cited by 36 publications

References 50 publications

Combustion, Chemistry, and Carbon Neutrality

Combustion, Chemistry, and Carbon Neutrality

A computational study of a laminar methane–air flame assisted by nanosecond repetitively pulsed discharges

Simulation study of DBD discharge characteristics and active particle-assisted methane combustion

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