The microwave plasma combustion is one combustion technology without contact
it can enhance the activation energy through chemical property-modification
lowering the ignition temperature
and heigtening the combustion stability. The relatively stable plasma produced by using suitable microwave resonant cavity structure
microwave frequency
and pulsed power supply
can be used for ignition of pulverized coal boilers. An approach to realization of premixed ignition after direct activation of pulverized coal and air mixture by plasma produced from a resonant cavity
and to the feasibility and method for plasma direct ignition and combustion of the fuel through different resonant frequency and pulsation has been carried out.