Non-Equilibrium Plasma Ignition for Internal Combustion Engines
Date Published: 2011-09-11
Paper Number:2011-24-0090
DOI: 10.4271/2011-24-0090
Citation:
Correale, G., Rakitin, A., Nikipelov, A., Pancheshnyi, S. et al., "Non-Equilibrium Plasma Ignition for Internal Combustion Engines," SAE Technical Paper 2011-24-0090, 2011, doi:10.4271/2011-24-0090.
High-voltage nanosecond gas discharge has been shown to be an efficient way to ignite ultra-lean fuel air mixtures in a bulk volume, thanks to its ability to produce both high temperature and radical concentration in a large discharge zone. Recently, a feasibility study has been carried out to study plasma-assisted ignition under high-pressure high-temperature conditions similar to those inside an internal combustion engine. Ignition delay times were measured during the tests, and were shown to be decreasing under high-voltage plasma excitation. The discharge allowed instant control of ignition, and specific electrode geometry designs enabled volumetric ignition even at high-pressure conditions.
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