variavel0=<b>FERNANDO MARCELO PEREIRA</b> - fernando@cet.ufsc.br UFSC
<b>Amir Antônio Martins de Oliveira Júnior</b> - amirol@emc.ufsc.br UFSC
<b>Abstract.</b> The stability limits for the premixed methane/air combustion within porous ceramic were measured for an arrangement of four ceramic foam disks made of zirconia and silicon carbide. The arrangement consists of two ceramic disks of 40 ppi followed by two disks of 10 ppi, each disk with 20 mm thickness. For the zirconia burners the lean flammability limit was found in the equivalent ratio of 0,40. For each equivalent ratio there was a range of velocities in witch the flame stabilization was possible. The silicon carbide burners were degraded at the maximum temperature used. The results show the potential for the use of the available zirconia porous ceramics in the design of low cost radiant porous burners for use with temperatures below 1550° C.
<b>Keywords.</b> Combustion, Porous Media, Excess Enthalpy.