Experimental Study of Ultra-Low Emission Radian Porous Burner

The objective of this study was to prove the concept of the novel gas-fired burner with stable internal porous-phase combustion. This novel combustion concept has good potential in increasing firing intensity and radiant heat output, and reducing combustion emissions for space and process heater applications. A bench-scale porous burner has been built and tested. The unique performances of the test burner, such as self-stabilization of combustion within the porous media in a large range of operating conditions, ultra-low NOx emissions from 1 to 12 vppm (at 0% O2), high radiant heat transfer rates up to 80 MBtu/h-ft2 (252 kW/m2) from the radiating surface, and high turndown ratio over 6:1 have been demonstrated.