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A cost effective solution to the problem of improving boiler efficiency and reducing emissions by means of a novel combustion control system and asensor package is described, with applications for hot water or steam generation plants and capacity larger than 10 MMbtu/h. The systemcontinuously monitors flue gas emissions and reduces them by means of regulation of the burner’s inlet fuel valve and air damper. The new burnermanagement system incorporates a novel control algorithm, low cost sensors to monitor exhaust composition, and a user friendly tool forvisualization of boiler performance. The controller continuously maintains the optimum proportion of fuel and air feeding the burner in order toreduce inefficiencies arising from excess air content while preventing unsafe operation arising from incomplete combustion. This new system is anevolution of commercially available “O2 trim” solutions and contrasts with legacy systems with preset mechanical linkage to fix the ratio of fuel toair. The new control algorithm accounts for variation of environmental conditions, e.g., inlet air temperature and humidity, and systemdegradation, e.g., linkage position drift. Use of this feedback control system is anticipated to enable increases in year averaged efficienciesapproximately 5%. Hence, significant annual fuel savings can be expected to defray costs related to the new system. The new system design anddata obtained during a demonstration of the system at the US Army’s Watervliet Arsenal in Watervliet, NY will be presented.
Product Details
- Published:
- 2012
- Number of Pages:
- 8
- File Size:
- 1 file , 600 KB
- Product Code(s):
- D-SA-12-C031
- Note:
- This product is unavailable in Russia, Belarus
