POROUS FLAME HOLDER FOR LOW NOx COMBUSTION

摘要

A burner includes a porous flame holder configured to support a combustion reaction to achieve a very low output of oxides of nitrogen (NOx).

主权项

1. A burner, comprising:
a fuel nozzle assembly configured to output a gaseous mixture including fuel and oxidant; and a porous flame holder defining gas passages each having a minimum dimension equal to or greater than a fuel quenching distance aligned to receive the gaseous mixture, the gas passages being configured to pass a combustion reaction supported by the gaseous mixture; wherein the gas passages include a wall configured to receive heat from a reacting portion of the gaseous mixture, radiate the heat toward an unreacted portion of the gaseous mixture, and receive the radiated heat adjacent to the unreacted portion of the gaseous mixture; wherein the fuel nozzle assembly is configured to mix the gaseous mixture sufficiently to substantially destroy Taylor layers between pure fuel and air carrying the oxidant.