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U.S. Department of Energy
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Evaluation of nitrogen oxide emissions data from TVA coal-fired boilers. Final report, June 1991-July 1992

Technical Report ·
OSTI ID:7089486
The report gives results of a study during which nitrogen oxide (NOx) emission rates from 30 boilers at 11 TVA coal-fired plants were calculated and compared with the calculated rate for each boiler type using EPA emission factors (AP-42). Current AP-42 emission factors for NOx from utility coal-fired boilers do not account for variations in either emissions as a function of generating unit load, or designs of boilers of the same general type, particularly wall-fired boilers. TVA recently compiled short-term NOx emissions data from 30 units at 11 TVA coal-fired plants. Analysis of these data indicates that: (1) to varying degrees, NOx emissions increase with increasing load for all but single- and opposed-wall-fired boilers; (2) using the current AP-42 quality rating scheme for each of the six boiler types, factoring in the TVA and recent literature data results in improved quality ratings for all NOx emission factors; and (3) there was no evident relationship between NOx emissions and fuel nitrogen content or fuel ratio (fixed carbon to volatile matter).
Research Organization:
Radian Corp., Research Triangle Park, NC (United States)
OSTI ID:
7089486
Report Number(s):
PB-93-138865/XAB; DCN--92-239-022-02-06; CNN: EPA-68-D1-0013
Country of Publication:
United States
Language:
English