Dynamics of low-temperature filamentary plasma-assisted ignition-stabilized combustion

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

Samenvatting

We present dynamics of ignition-stabilized combustion performed in two reactor configurations. The first configuration is a quartz flow channel incorporating a dielectric barrier discharge. The discharge is produced using 10 ns duration and 23 kV amplitude repetitive pulses. We observe filamentary plasma in air with gas temperatures below the methane auto-ignition temperature. Repetitive ignition is observed when a methane-air mixture flows through the discharge. From high-speed chemiluminescence imaging, we found that the repetitive ignition frequency depends on ignition-induced dynamics. High-speed images are processed to explore ignition dynamics. Flame front locations and absolute flame speed have been evaluated for various flow speeds and equivalence ratio conditions. The second reactor configuration has two co-axial channels. Four discharge configurations similar to the first setup are located in the outer channel, just below the interaction with the flow from the inner channel. A stable lean combustion is achieved at flow speeds above lean blowout limit.

Originele taal-2Engels
TitelAIAA SciTech Forum and Exposition, 2023
UitgeverijAmerican Institute of Aeronautics and Astronautics Inc. (AIAA)
ISBN van geprinte versie9781624106996
DOI's
StatusGepubliceerd - 2023
EvenementAIAA SciTech Forum and Exposition, 2023 - Orlando, Verenigde Staten van Amerika
Duur: 23 jan. 202327 jan. 2023

Congres

CongresAIAA SciTech Forum and Exposition, 2023
Land/RegioVerenigde Staten van Amerika
StadOrlando
Periode23/01/2327/01/23

Financiering

FinanciersFinanciernummer
Nederlandse Organisatie voor Wetenschappelijk Onderzoek

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