Burner Operation – General Considerations
Air, mixing, and (for oil firing) atomization are the keys to good burner performance. Even the best designed burner performs poorly when fired with any one of the following deficiencies:
• Too little combustion air
• Not enough air-fuel mixing
• Poor fuel oil atomization
“Poor” performance means long, billowy, yellow, smoky flames that burn up tubes and refractory. Most burners can be adjusted to produce an acceptable flame. Any burner can be adjusted to produce a poor flame.
When burning oil, the single most troublesome operating problem is burner plugging due to inadequate filtering or infrequent cleaning. The oil and burners have to be kept clean. When burning gas, operation outside the design specific gravity range is the most common problem.