Variations in the NOx Emission of Gas Turbines: Effects of Air Temperature, Air Humidity and Natural Gas Composition

B. Martien Visser, Fred C. Bahlmann
1994 Volume 3: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations   unpublished
The NOx emission, produced by gas turbines varies with ambient conditions and with fuel gas composition. Often, legislation requires that the NOx emissions of gas turbines has to be corrected to standard conditions. The EPA formula may be used for the correction for ambient temperature and humidity. In the Netherlands, the correction for fuel-gas composition is based on the observation that for natural gases, NOx emission varies linearly with the Lower Calorific Value (LCV). It is concluded
more » ... both the EPA and LCV correction formulas are equivalent to the following relation between flame temperature and NOx emission: NOxa = NOxb * ( 1.0(J65)Ta-Th
doi:10.1115/94-gt-261 fatcat:ivdd4gbj3jf57nfcmklv4est2i