The boiler had a 375-ton/hr (t/hr) rating, with a maximum fuel oil consumption of 30 kiloliters/hr. The maximum continuous rating (MCR) for inlet airflow was approximately 600,000 normal cubic ...

Dampers for primary and secondary air control, as well as overfire air control, are typically distributed around the boiler in great quantities (more than 100 in many cases-see figure 3).

Share To: By Jacques F. Smuts, Ph.D., P.E., OptiControls Power plants–especially coal-fired boilers–pose a set of process control problems unparalleled in other industries.

The three subject steam boilers have three identical FD fans, which utilize four dampers per fan. There is a louvered damper before and after the FGR mixing box, a variable inlet vane (VIV) damper at ...

The results can range from problematic to catastrophic. In the late 1980s, a school in Massachusetts reported an issue with its burner. The facility claimed the boilers had been leaking exhaust, ...