Patent ID: 6866501
Filing Date: 2005-03-15
Classification: F23C,F23D

Abstract:
1. A burner assembly having a longitudinal axis and a transverse axis substantially perpendicular to the longitudinal axis, the burner assembly adapted to combust a fuel with an oxidant and thereby generate a longitudinal heat flux profile substantially about the longitudinal axis and a transverse heat flux profile substantially about the transverse axis, comprising: a plurality of burner units, each burner unit being spaced apart from an adjacent burner unit by a distance, and each burner unit having a heat release rate, a plurality of fuel orifices, each fuel orifice spaced apart from at least one adjacent fuel orifice, and a plurality of oxidant orifices spaced apart from the plurality of fuel orifices, each oxidant orifice spaced apart from at least one adjacent oxidant orifice, wherein each oxidant orifice has a cross sectional area and the plurality of oxidant orifices in each burner unit are arranged in an array of a plurality of different spaced apart groups, each group having at least one oxidant orifice, and at least one group has at least one more oxidant orifice than another group, or the cross sectional area of at least one oxidant orifice in the at least one group differs from the cross sectional area of at least one other oxidant orifice in the another group, whereby the transverse heat flux profile is controlled by the array of the plurality of different spaced apart groups of the plurality of oxidant orifices in the plurality of the burner units, the longitudinal heat flux profile is controlled by at least one of the distance between the adjacent burner units and the heat release rates of the adjacent burner units, and the longitudinal heat flux profile and the transverse heat flux profile are thereby simultaneously controlled by the burner assembly when the fuel is combusted with the oxidant by the burner assembly.