Abstract
The report gives results of field measurements made on a 180,000 lb/hr coal-fired spreader-stoker boiler. The effects of various parameters on boiler emissions and efficiency were studied. Parameters included overfire air, excess air, boiler load, and coal properties. Measurements included O/sub 2/, CO/sub 2/, CO, NO, NO/sub 2/, S0/sub 2/, SO/sub 3/, controlled and uncontrolled particulate loading, particle size distribution of the uncontrolled flyash, and combustible content of the ash. In addition to test results and observations, the report describes the facility tested, coals fired, test equipment, and procedures. This unit was unique: it used paint oven exhaust gases as combustion air. Particulate loading on the unit averaged 5.51 lb/million Btu uncontrolled at high load. Nitric oxide emissions averaged 0.53 lb/million Btu at high load.
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