Ultra-lean and ultra-rich flames stabilization by high-voltage nanosecond pulsed discharge

Strict environmental regulations on emissions levels in combustion chambers of all kinds recently led to the development of various lean combustion concepts. One of the key problems in these systems is flame stabilization at equivalence ratii as low as 0.05-0.2. These conditions ensure very low NOx production rate, but at the same time require careful design of the burner, the combustion chamber and the flow pattern inside to provide stable flame attachment and combustion completeness.