Combustion Enhancement Using Silent Electrical Discharges
L.A. Rosocha1, Y. Kim1, G.K. Anderson1, and S. Abbate2
1 Los Alamos National Laboratory, Los Alamos, NM, USA
2 ONERA, Palaiseau, France
Abstract
Silent electrical discharges, also known as dielectric-barrier discharges (DBDs), can create free radicals and fragmented compounds that play a role in combustion reactions. Using silent discharge devices, we have carried out tests on hydrocarbon fuel activation systems capable of increasing flame speed, stabilizing flames, and operating in very lean burn regimes (where the production of pollutants such as NOx and CO are expected to decrease). Experiments have been carried out with the gaseous hydrocarbon fuels methane, ethane, propane and butane, as well as the gasoline surrogate liquid iso-octane. In our experiments, the fuel alone is activated, before it is mixed with air and combusted.
Keywords - Plasma-assisted combustion, silent discharge, dielectric-barrier discharge
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