- Author
-
Presser, C.
|
Semerjian, H. G.
- Title
- Evaluation of Industrial Combustion Control Systems. Final Report.
- Coporate
- National Bureau of Standards, Gaithersburg, MD
- Sponsor
- Department of Energy, Washington, DC
- Report
-
DOE/CS/40521-TL; DE85-016803,
October 1984,
243 p.
- Contract
- DE-AT01-81CS40521
DE-AI01-76PR06010
- Keywords
-
combustion control
- Abstract
- Efficient control of furnace and boiler combustion processes can be accomplished by continuous monitoring of excess oxygen and/or carbon monoxide concentration in the flue gases, and by maintaining a fuel/air mixture which maximizes the heat release rate and minimizes energy losses. The current trend is to monitor both the excess O2 and CO concentration due to the inherent shortfcomings associated with each respective minitoring system. Improved furnace operation can provide significant cost savings through reduced fuel consumption, decreased flue gas emissions and increased combustion efficiency. An investigation has been carried out to evaluate three in-situ O2 and two in-situ CO monitoring systems which are applicable to furnace and boiler controls. The monitors are located in the stack of the NBS experimental furnace, allowing simultaneous monitoring of all instruments in the same environment. The study focused on the response of each in-situ monitoring system to changes in several furnace operating parameters; viz., equivalence ration, burner firing rate, heat extraction rate, and cyclic operating conditions.