Preliminary Results from a Plasma-Assisted 7-Point Lean Direct Injection (LDI) Combustor and Resulting Impacts on Combustor Stability and Combustion Dynamics

Campo, Felipe Gomez del; Weibel, Drew; Wen, Chenran

doi:10.2514/6.2017-4778

Cited by 4 publications

(1 citation statement)

References 5 publications

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“…The group also researched the effects of nanosecond pulse discharge plasma on the extinguishing limit of a depleted C 3 H 8 /air premix and kerosene spray fuel [19,20]. Gomez et al [21] designed a multipoint lean fuel direct injection (LDI) plasma injector and tested it using a simulator with a fan-shaped combustion chamber. The study showed that plasma discharge could reduce the equivalent ratio of depleted fuel from 1% to 24%.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on the improvement of spray characteristics of aero-engines using gliding arc plasma

Zhang¹,

Zhang²,

Yu³

et al. 2023

Plasma Sci. Technol.

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A gliding arc plasma fuel atomization actuator suitable for aeroengines was designed, and a gliding arc plasma fuel spray experimental platform was built to address the fuel atomization problem in aeroengine combustion chambers. The spray characteristics for different airflows, fuel flows, and discharge voltages were analyzed using laser particle size analysis. The research shows that the fuel atomization effect is improved from the increased airflow. The decreased fuel flow not only reduces the injection pressure of the fuel but also changes the discharge mode of the gliding arc, which affects reductions in the discharge power and inhibits fuel atomization. Gliding arc discharges accelerate the breaking, atomization, and evaporation of fuel droplets while reducing the particle size, which increases the proportion of small droplets. Compared with the working conditions of plasma-assisted atomization without the gliding arc, the D0.5, D0.9, and average particle size of the fuel droplets are reduced by 4.7%, 6.5%, and 4.1%, respectively, when the modulation voltage of the gliding arc power supply is 200 V.

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Section: Introductionmentioning

confidence: 99%

Experimental study on the improvement of spray characteristics of aero-engines using gliding arc plasma

Zhang¹,

Zhang²,

Yu³

et al. 2023

Plasma Sci. Technol.

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Experimental investigation of the plasma-assisted spray combustion of methanol/water mixtures

Chen,

2024

Fuel

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Plasma-Assisted Control of Combustion Instabilities in Low-Emissions Combustors at Realistic Conditions

Campo

2019

AIAA Propulsion and Energy 2019 Forum

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Preliminary Results from a Plasma-Assisted 7-Point Lean Direct Injection (LDI) Combustor and Resulting Impacts on Combustor Stability and Combustion Dynamics

Cited by 4 publications

References 5 publications

Experimental study on the improvement of spray characteristics of aero-engines using gliding arc plasma

Experimental study on the improvement of spray characteristics of aero-engines using gliding arc plasma

Experimental investigation of the plasma-assisted spray combustion of methanol/water mixtures

Plasma-Assisted Control of Combustion Instabilities in Low-Emissions Combustors at Realistic Conditions

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