In the blue flame burner some of
the hot gases from the flame are recirculated back to the inlet where they mix
with and heat the combustion air. The fuel oil is, during normal firing,
introduced into the hot recirculating gases and vaporizes. When the hot flue
gases and gaseous fuel mix with the combustion air it burns with a blue flame
without visible smoke. This is the closest to stoichiometric combustion one can
get with a commercial burner today.
Oilon® once made a small size blue flame burner without ceramic
material and only one fuel nozzle.
In the blue flame burner some of
the hot gases from the flame are recirculated back to the inlet where they mix
with and heat the combustion air. The fuel oil is, during normal firing,
introduced into the hot recirculating gases and vaporizes. When the hot flue
gases and gaseous fuel mix with the combustion air it burns with a blue flame
without visible smoke. This is the closest to stoichiometric combustion one can
get with a commercial burner today.