Flue Gas Recirculation
Flue Gas Recirculation by: Joseph Colannino, Ph.D. Flue gas recirculation is a method of reducing NOx. NOx is a criteria pollutant. NOx comprises two main species: nitric oxide (NO) and nitrogen dioxide (NO2). One method of reducing NOx in boilers is to recirculate flue gas from the exhaust stack into the windbox. (See Figure 1.) […]
System Selection
System Selection Selecting the Best System for Your Applications Single Point Positioning Parallel Positioning Full Metering Oxygen Trim Feedwater Control Single Point Positioning (SPP) Single point positioning systems are simple, highly reliable, and cost effective. A jack shaft is rotated by an actuator. The forced draft fan flow control damper and the fuel valves are […]