NOx Burner technology

Adding bluff bodies or swirl air may reduce NOx by decreasing the ignition distance.  Converting to a multichannel burner with less primary air may be another approach. Even adding a water spray to reduce the core temperature of the flame may be considered reduce NOx emissions.  But have we really covered all the angles of burner design to minimize NOx?

Now consider the following technology that claims 30-70% NOx reduction:

Gyrotherm

These results are achieved by a natural phenomenon that cracks the hydrocarbon molecule and stages combustion in the burning zone.  Too good to be true?  Maybe and results would vary for each application, but it is worth considering especially in  California where the agencies are coming down hard.

Schnarre Engineering has first hand knowledge of a direct fired burner modification with Gyrotherm technology that delivered a 40% NOx reduction on the baseline coal flame.  A relatively simple burner modification could be the answer to stay in compliance.  

The only drawback is that natural gas must be used to generate the staged combustion effect. However, in some multichannel burner designs this could be easily retrofitted and with the price of gas coming down, it becomes a viable alternative

Contact Schnarre Engineering for more details.