BURNER AND PROCESS FOR OPERATING GAS TURBINES

摘要

A porous, low-conductivity material formed of metal or ceramic fibers provid es the burner face of a gaseous fuel combustor for gas turbines capable of minimizing nitrogen oxides (NO x) emissions in the combustion product gases. A preferred burner face when fire d at atmospheric pressure, yields radiant surface combustion with interspersed areas of blue flame combustion. A rigid but porous mat of sintered metal fibers with interspersed bands of perforations is illustrative of a preferred burner face that can be fired at pressures exceeding 3 atmospheres at the rate of at least about 500,000 BTU/hr/sf/atm.